Pioneering work in the area of airborne networks and cognitive radios.

Size: px
Start display at page:

Download "Pioneering work in the area of airborne networks and cognitive radios."

Transcription

1 Faculty Research Statement Covering the period since tenure Timothy X Brown Electrical and Computer Engineering Department Interdisciplinary Telecommunications Program October, 2008 My research is focused on wireless network communication, the key enabling technology for wireless Internet access, disaster and emergency communications, and mobile telephone communication. My work up until tenure (through 2001) was primarily theoretical. 1 In networking research, theory is important but distributed networks are notoriously tricky to model and new advances must be in the context of existing networks and their users. Arguments over the theoretically best approach bog down on subtle modeling differences and how much we are willing to change the existing network. For these reasons networking researchers also value what the Internet Engineering Task Force calls rough consensus and running code. 2 In practice, this means that successful networking research must consider a larger context and must ultimately reduce the research ideas to practice. In wireless networking these issues are especially acute since the complex wireless environment further challenges theoretical models. Further, you can build a new fully functioning radio but yet be unable to turn it on because of regulatory restrictions from the Federal Communication Commission (FCC). The tightly managed wireless spectrum is often the greatest limit to innovation. With tenure, I took the opportunity to tackle these challenges through two new research programs: one to study real wireless network implementations; and the other to tackle the regulatory fetters to new wireless technologies, specifically a technology denoted as cognitive radios. Summary of Research Accomplishments Leader of the Ad hoc Unmanned aircraft Ground Network (AUGNet) research group since its founding in This group has been instrumental in bringing recognition to the University of Colorado as a leader in unmanned aircraft systems (UAS) research. I have been PI on the majority of AUGNet funding and collectively have been PI or Co-PI (with Prof. Argrow, Prof. Frew, and Prof. Gates) on $2.1M of AUGNet related funding since The group and its activities are the foundation of the Research and Engineering Center in Unmanned Vehicles (RECUV) founded in Equal-share collaboration in major funded programs from NSF (3 projects, $1.5M), AFOSR (1 project, $450k), DARPA (1 project $580k), AF Materiel Command (3 projects through L3- Comcept, $1.3M), and FAA (2 projects, $274k). Sole investigator on 9 other projects totaling $295k. Pioneering work in the area of airborne networks and cognitive radios. Supervision of graduate students since tenure, : 6 Ph.D. students (3 of whom have graduated), 15 M.S. thesis students (all of whom have graduated), 36 masters capstone students (9 projects, all completed). Including participating on committees and undergraduate and graduate independent study projects, I have advised or was on the committee of 111 students. Publications since tenure, : 2 book chapters; 4 edited books; 10 journal papers; 34 peer-reviewed full-length conference papers, 6 of which are journal equivalent. 3 I am the leading faculty author on both book chapters, 7 out of 10 journal papers, 29 out of 34 conference papers, and 6 out of 6 of the journal equivalent papers. This research statement elaborates on these accomplishments. 1 A sample of this work which appeared in print during my post tenure period includes [1 4] Journal equivalent I define as less than 33% acceptance rate, at least 7 pages in length, at least three reviews provided back to authors, and the conference is regarded as a key place to publish in the field. 1

2 Wireless Networks Implementations Wireless network research is separate from standard network research because of the unique characteristics of the wireless radio environment. These include a shared media that is subject to outside noise and interference, links whose quality is difficult to predict because of node dynamics and complex radio propagation, and a surprisingly difficult to define notion of a communication link due to the broadcast nature of the communication and many physical layer parameters that can affect the likelihood any given packet will be received. Over the past several years, our research has been able to develop indoor and outdoor testbeds that enable us to test new communication models in realistic environments. Through this process we have been able to identify and solve key challenges to successful wireless networks. As our lab started on its efforts to develop expertise implementing wireless ad hoc network protocols on Linux-based laptops, it became clear that we needed a live test environment with which we could perform realistic but repeatable experiments. For the indoor environment we developed a table-top method for testing wireless networks that used RF attenuators on antennas to shrink the communication range so that meaningful multi-hop ad hoc network experiments could be performed in a room [5 7]. This worked well for static networks but was not able to generate interesting mobility. Furthermore, experimental control was compromised by the proximity of many radio sources in the engineering center. At this point we made an ambitious goal to develop a full-scale and fully-instrumented outdoor test bed that would have fixed nodes, mobile ground nodes, and, through a collaboration with the Aerospace Department (Prof. Argrow), would include radio nodes mounted in small high-speed unmanned aircraft. Such a network we denoted an Ad hoc Unmanned aircraft and Ground Network (AUGNet), 4 which we built and tested at the nearby Table Mountain National Radio Quiet Zone [8 13]. Through this test bed we learned two primary lessons. The first is that, though we can make protocols to better manage mobility [14], large outdoor networks will always require an overlay that is robust to long outages. This led us to develop one of the first delay tolerant network (DTN) implementations [15 18]. DTN is a relatively new concept (Burleigh, Hooke, and Cerf IEEE Comm. Mag. 2003) which enables end nodes to piece together partial routes over time in situations where simultaneous end-to-end connections may never exist. Our implementations solved several outstanding questions in routing and service discovery. The second lesson is that the key to good connectivity is to actively use mobility to maintain connectivity. A freely mobile node (such as a small unmanned aircraft) can move to locations to assist in network connectivity or, if necessary, physically carry data from one place to another. Others had developed notions of such controlled mobility (Li and Rus MobiCom 2000) or data ferries (Zhao and Ammar IWFTDCS 2003). Our insight is to treat the mobile node as a type of shared media with unique characteristics. We developed a theory of this media; defining optimal modes of operation and performance limits [19 26]. In October 2006 the FAA effectively shut down all UAS-based research, barring any UAS flights, even small UAS such as ours, without going through a lengthy certificate of authorization (COA) process. With Prof. Argrow and Prof. Frew, I have worked with the FAA to understand the effect of UAS in the National Airspace System (NAS). Further, Prof. Sicker and I are investigating how new networking and communication technologies can support safe UAS operations in the NAS [27 31]. Several related projects have spunoff from these activities. We are now participants in NASA s interplanetary DTN network test bed. The Aerospace department has used our networking protocols to control their UAS for the past three years [32]. We have also tested other types of radio systems [33]. This work was nationally recognized when I was invited by the National Research Council to participate as an expert on wireless networking and networked UAS for communications in a study prepared for FEMA and Congress [34 37]. AUGNet s success in synergistic and multidisciplinary research led Prof. Argrow, myself, and others to found a new center in 2004, the Research and Engineering Center in Unmanned Vehicles (RECUV). RECUV now houses AUGNet s activities as well as other related projects. I look to continue these activities. My primary research now is to understand the relationship be- 4 See augnet.colorado.edu or recuv.colorado.edu for more details. 2

3 tween mobility, networking, and control theory. Distributed control often treats the communication as an exogenous constraint, while conversely mobile networking often considers the mobility control as exogenous. Working with my collaborators in AUGNet, we seek to develop a unified theory. For instance a pair of unmanned aircraft may be given the task to quickly identify an unknown radio source. They can better localize by forming a wide baseline but must stay close enough in order to communicate and coordinate their search. Thus the mobility and control are constrained by the communication and vice versa. Cognitive Radios It is well documented that most radio spectrum goes unused at any given time even in dense urban areas (FCC Spectrum Policy Task Force, 2002). Unfortunately, accessing this unused spectrum is impossible because it is allocated to other users or requires expensive licenses under FCC regulations. A new radio technology, denoted cognitive radios, is well-understood by technical researchers to be able to dynamically access and share the spectrum and exploit this unused white space. However, this technical achievement is moot against the FCC regulations. Therefore, I participated in a multiprong approach to change the regulatory environment. The first hurdle was gaining consensus among technical, economic, and legal researchers on a path forward. I chaired or co-chaired several well received NTIA symposiums with this focus [38, 39]. The consensus was to focus on TV white space as the FCC was already developing notices of proposed rule making in this area. A second hurdle was that broadcaster incumbents argue vigorously that any new radios will cause harmful interference. A careful analysis showed that harmful interference to TVs was very unlikely [40,41]. Wireless microphones also operate in the TV band and it was argued that new radios would cause harmful interference to them. A further study showed that this interference could be bounded [42, 43]. Technical papers and conferences are not enough in this area. Researchers must also engage in the regulatory process. For several regulatory proceedings, I submitted technical reply comments on the white spaces topic to the FCC and NTIA [44 46]. It became clear through this process that the public debate suffered from a lack of definition of what harmful interference even means. I joined an IEEE standardization process to clarify this point and contributed the harmful interference taxonomy that is central to the resulting standard [47, 48]. The economics of spectrum sharing has been studied but often with abstract technical models or a narrow model of how the spectrum would be licensed. I (with Prof. Sicker) have examined economic models with more technical fidelity to provide insights into the economic benefits of sharing [49, 50] and the conditions when cognitive radios would be economically viable [51, 52]. I also (with Profs. Sicker, Hatfield, Lookabaugh, and Weiser) contributed to the DARPA next generation radio project. This project focused on military spectrum and had the potential to sidestep the commercial spectrum concerns. We advised DARPA on strategies and policies for white space usage by secondary users [53]. The radios that use white spaces have new capabilities such as sensitive detectors of existing primary users. These capabilities open up potential denial of service attacks. Based on an early paper on DoS [54] we carefully explored the vulnerabilities of cognitive radios [55 58]. A major outcome of this analysis is the relative vulnerability of different cognitive radio architectures. This analysis is being used by the IEEE standards group concerned with cognitive radios [59]. Since the standard is a derivative of the IEEE wireless standard we also carefully analyzed the DoS vulnerabilities of this standard [60]. Collectively, this cognitive radio work covers a broad spectrum of research areas and styles. It was recognized at CU with a Provost Faculty Achievement Award in The work has smoothed many obstacles to cognitive radio deployments. However, further work is needed. 3

4 References [1] T. X Brown, Switch Packet Arbitration via Queue Learning, Advances in Neural Information Processing Systems 14, ed. T.G. Dietterich et al., MIT Press, [2] H. Tong 5, T. X Brown, Reinforcement Learning for Call Admission Control and Routing under Quality of Service Constraints in Multimedia Networks, Machine Learning, v. 49, n. 2/3, Nov./Dec. 2002, pp [3] T. X Brown, H. Gabow, Future Information in Input Queueing, Computer Networks, v. 42, n. 4, 15 July 2003, pp [4] T. X Brown, How can anyone afford mobile wireless mass media content?, in J. Groebel, E. Noam, V. Feldmann ed. Mass media content for mobile wireless communication, pp Erlbaum, [5] S. Sanghani, T. X Brown, S. Bhandare, S. Doshi, Tabletop Emulation of Mobile Ad Hoc Wireless Networks, in Proc. Wireless Communication Networking Conference, IEEE, [6] S. Doshi, S. Bhandare, T. X Brown, An On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network, Mobile Computing and Communications Review, v. 6, n. 3, July 2002, pp [7] S. Bhandare, S. Doshi, S. Sanghani, T. X Brown, Comparison of two wireless ad hoc routing protocols on a hardware test-bed, in Proc. Wireless Communication Networking Conference, IEEE, [8] T. X Brown, S. Doshi, S. Jadhav, J. Himmelstein, Test Bed for a Wireless Network on Small UAVs, in Proc. AIAA 3rd Unmanned Unlimited Technical Conference, Chicago, IL, Sep [9] T. X Brown, B. Argrow, S. Doshi, R.-G. Thekkekunnel, D. Henkel, Ad Hoc UAV Ground Network (AUGNet), in Proc. AIAA 3rd Unmanned Unlimited Technical Conference, Chicago, IL, Sep [10] T. X Brown, G. Argrow, H. Gates, Wireless Communication Test Bed Final Report, to L3-Comcept, Nov. 29, p. [11] S. Jadhav, T. X Brown, S. Doshi, D. Henkel, R.-G. Thekkekunnel, Lessons Learned Constructing A Wireless Ad Hoc Network Test Bed, in Proc. of the Wireless Network Measurement Workshop, Trentino, Italy, 3 Apr [12] T. X Brown, S. Doshi, S. Jadhav, D. Henkel, R.-G. Thekkekunnel, A Full-Scale Wireless Ad Hoc Network Test Bed, in Proc. of International Symposium on Advanced Radio Technologies, Boulder, CO, March 1 3, [13] T. Brown, B. Argrow, E. Frew, C. Dixon, D. Henkel, J. Elston, H. Gates Experiments Using Small Unmanned Aircraft to Augment a Mobile Ad Hoc Network, in B. Bing ed. Emerging Technologies in Wireless LANs: Theory, Design, and Deployment, pp , 2008 [14] Y. Zhang, T. X Brown, Aisle Routing for Mobile Ad Hoc Networks, in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Las Vegas, Mar. 31 Apr pp. [15] D. Henkel, C. Dixon, J. Elston, T. X Brown, A Reliable Sensor Data Collection Network Using Unmanned Aircraft, in Proc. Second International Workshop on Multi-hop Ad Hoc Networks: from theory to reality (REALMAN), Florence, May 26, [16] A. Jenkins, D. Henkel, T. X Brown, Sensor Data Collection Through Gateways in a Highly Mobile Mesh Network, in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Hong Kong, March [17] A. Jenkins, D. Henkel, T. X Brown, Sensor Data Collection through Unmanned Aircraft Gateways, Proc. AIAA Infotech Aerospace Conference, May 7 10, pp. [18] A. Jenkins, D. Henkel, T. X Brown, Reliable Data Collection in Challenged Networks using Unmanned Aircraft, in Proc. ACM MobiCom workshop on Challenged Networks (CHANTS), Montreal, Aug pp. [19] E. W. Frew, C. Dixon, B. M. Argrow, T. X Brown, Radio Source Localization by a Cooperating UAV Team, Proc. AIAA Infotech@Aerospace Technical Conference, Arlington, VA, Se6t , [20] T. X Brown, D. Henkel, On Controlled Node Mobility in Delay-Tolerant Networks of Unmanned Aerial Vehicles, in Proc. of International Symposium on Advanced Radio Technologies (ISART), Boulder, CO, March 7 9, [21] E. W. Frew, T. X Brown, C. Dixon, D. Henkel, Establishment and Maintenance of a Delay Tolerant Network through Decentralized Mobility Control, in Proc. IEEE International Conference On Networking, Sensing and Control, Ft Lauderdale, FL, Apr , p [22] C. Dixon, D. Henkel, E. W. Frew, T. X Brown, Phase Transitions for Controlled Mobility in Wireless Ad Hoc Networks, in Proc. AIAA Conference on Guidance Navigation and Control, Keystone, CO, Aug., p [23] D. Henkel, T. X Brown, Route Design for UA-based Data Ferries in Delay Tolerant Wireless Networks, Proc. AIAA Infotech Aerospace Conference, May 7 10, pp. 5 The names of student authors are underlined. 4

5 [24] D. Henkel, T. X Brown, Optimizing the Use of Relays for Link Establishment in Wireless Networks, in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Hong Kong, March [25] D. Henkel, T. X Brown, Delay-Tolerant Communication using Mobile Robotic Helper Nodes, Proc. The First Workshop on Wireless Multihop Communications in Networked Robotics, Berlin, Germany, Apr. 4, [26] D. Henkel, T. X Brown, Towards Autonomous Data Ferry Route Design through Reinforcement Learning, Proc. Autonomic and Opportunistic Communications Workshop, Newport Beach, Jun. 23, 2008, 6pp. [27] T. X Brown, The Role of Communication in UAS in the Next 10 Years, First Community Symposium dedicated to Civilian Applications of Unmanned Aircraft Systems (CAUAS), Boulder, CO, Oct. 2, [28] T. X Brown, Radio Technologies for UAS Communication, NSF/AUVS/FAA/DHS Workshop on UAS Research Directions for the National Air Space, June 10, [29] E. W. Frew, T. X Brown, Airborne Communication Networks for Small Unmanned Aircraft Systems, Proc. International Symposium on Unmanned Aerial Vehicles (UAV O8), Orlando, Jun , [30] E. W. Frew, T. X Brown, Networking Issues for Small Unmanned Aircraft Systems, Journal of Intelligent and Robotic Systems, to appear, published online June 2008, 17 p. [31] E. Frew, T. X Brown, Airborne Communication Networks for Small Unmanned Aircraft Systems, IEEE Proceedings, to appear. [32] E. W. Frew, C. Dixon, J. Elston, B. Argrow, and T. X Brown. Networked Communication, Command, and Control of an Unmanned Aircraft System, AIAA Journal of Aerospace Computing, Information, and Communication, v. 5, n. 4, April 2008, pp [33] B. Hartzog, T. X Brown, WiMax - Potential Commercial-Off-The-Shelf (COTS) Solution for Tactical Mobile Mesh Communications, in Proc. Military Communications Conference (MILCOM), Washington, Oct , [34] R. R. Rao, Y. Arens, A. Botterell, T. X Brown, J. R. Harrald, R. Howard, N. Jesuale, D. Kehrlein, W. Maheu, R. R. Murphy, R. Neches, M. Shinozuka, P. Steenkiste, G. Wiederhold, ed. J. Eisenberg, T. Schmitt, Summary of a Workshop on Using Information Technology to Enhance Disaster Management, National Academies Press, p. [35] R. R. Rao, Y. Arens, A. Botterell, T. X Brown, J. R. Harrald, R. Howard, N. Jesuale, D. Kehrlein, W. Maheu, R. R. Murphy, R. Neches, M. Shinozuka, P. Steenkiste, G. Wiederhold, ed. J. Eisenberg, T. Schmitt, Improving Disaster Management: The Role of IT in Mitigation, Preparedness, Response, and Recovery, National Academies Press p. [36] T. X Brown, Wireless Networking Performance Axis for Disaster Management, Emergency Communications and Disaster Management Workshop,, Honolulu, HI, Jan. 13, [37] T. X Brown, Wireless Networking for Disaster Management, GEOSS Workshop on Advanced Communications and Networking Technologies for Disaster Management, Honolulu, HI, Jan. 12, [38] J. W. Allen, T. X Brown, eds. Proc. of the International Symposium on Advanced Radio Technologies, NTIA Special Publication SP , Springfield, VA, p. [39] J. W. Allen, T. X Brown, D. C. Sicker, and J. Ratzloff, eds. Proc. of the International Symposium on Advanced Radio Technologies, NTIA Special Publication SP , Springfield, VA, p. [40] T. X Brown, An Analysis of Licensed Channel Avoidance Strategies for Unlicensed Devices, in Proc. First IEEE Int. Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), Baltimore, MD, Nov. 8 11, [41] T. X Brown, A Harmful Interference Model for Unlicensed Device Operation in Licensed Service Bands, J. of Communications, v. 1, n. 1, April pp [42] R. Dhillon, T. X Brown, Modeling and Analysis of the Interference Potential of Cognitive Radio Devices to Wireless Microphones Operating in TV bands, International Symposium on Advanced Radio Technologies (ISART), Boulder, Jun. 2 4, [43] R. Dhillon, T. X Brown, Models for Analyzing Cognitive Radio Interference to Wireless Microphones in TV Bands, IEEE Dynamic Spectrum Access Networks (DySpAN), Chicago, Oct , [44] T. X Brown, Enabling and Evaluating Unlicensed Operation in the TV Broadcast Bands, reply comments In the matter of Unlicensed Operation in the TV Broadcast Bands, Federal Communications Commission Docket No , Jan. 29, p. [45] P. Kolodzy, A. Lippman, R. Broderson, T. X. Brown, M. A. Sirbu, D. G. Sweeney, J.H. Snider, M. Calabrese, H. Feld, A. J. Schwartzman, Technical Reply Comments, In the Matter of Unlicensed Operation in the TV Broadcast Bands, Federal Communications Commission Docket No Jan. 29, p. [46] T. X Brown, A Model for Analyzing Unlicensed Device Operation in Licensed Broadcast Service Bands, In the Matter of Implementation and Administration of a Coupon Program for Digital-to-Analog Converter Boxes, National Telecommunications and Information Administration, Docket No , Oct. 31, p. 5

6 [47] T. X Brown, Harmful Interference Models for Unlicensed Devices in Licensed Bands, Presented at the IEEE P1900 Standards Meeting Boulder, CO Jan. 25, [48] H. S. Berger, K. R. Kontson, A. E. Leu, T. X Brown, F. Frantz, D. M. Parker, V. Prasad, D. Stewart, IEEE Recommended Practice for the Analysis of In-Band and Adjacent Band Interference and Coexistence Between Radio Systems, IEEE Standard, P , 29 July, p. [49] Q. Wang, T. X Brown, Pricing versus admission control in multi-class loss networks, in Proc. 40th annual Conference on Information on Sciences and Systems, Princeton, NJ, March, [50] Q. Wang, T. X Brown, Public Safety and Commercial Spectrum Sharing via Network Pricing and Admission Control, IEEE J. on Selected Areas in Communication, v. 25, n. 25. April 2007, pp [51] T. X Brown, D. Sicker, Can Cognitive Radio Support Broadband Wireless Access?, IEEE Dynamic Spectrum Access Networks (DySpAN), Dublin, April 17 20, 2007 [52] T. X Brown, D. C. Sicker, Examining the Viability of Broadband Wireless Access under Alternative Licensing Models in the TV Broadcast Bands, EURASIP Journal on Wireless Communications and Networking, vol. 2008, Article ID , Jan p. [53] J. B. Bernthal, T. X Brown, D. N. Hatfield, D. C. Sicker, P. A. Tenhula, P. J. Weiser, Trends and Precedents favoring Regulatory Embrace of Smart Radio Technologies, IEEE Dynamic Spectrum Access Networks (DySpAN), Dublin, April 17 20, 2007 [54] T. X Brown, J. E. James, A. Sethi, Jamming and Sensing of Encrypted Wireless Ad Hoc Networks, in Proc. Seventh ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), Florence, May [55] T. X Brown, A. Sethi, Potential Cognitive Radio Denial-of-Service Vulnerabilities and Countermeasures, in Proc. Int. Symposium on Advanced Radio Technologies (ISART), Boulder, Feb [56] T. X Brown, A. Sethi, Potential Cognitive Radio Denial-of-Service Vulnerabilities And Protection Countermeasures: A Multi-dimensional Analysis/Assessment, Proc. Second Int. Conf. on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), Orlando, FL, Aug 1 3, pp. [57] T. X Brown, A. Sethi, Potential Cognitive Radio Denial-of-Service Vulnerabilities and Protection Countermeasures: a Multi-dimensional Analysis and Assessment, Journal of Mobile Networks and Applications, to appear, published online July 2008, 17 p. [58] A. Sethi, T. X Brown, Hammer Model Threat Assessment of Cognitive Radio Denial of Service Attacks, IEEE Dynamic Spectrum Access Networks (DySpAN), Chicago, Oct , [59] T. X Brown, Threat Assessment to Primary and Secondary Users in a Centralized Cognitive Radio Network, IEEE P Wireless RANs Plenary Meeting, Denver, July 17, [60] S. Maru, T. X Brown, Denial of Service Vulnerabilities in the Protocol, Proc. of the Wireless Internet Conference (WICON), Maui, HI, Nov ,

Test Bed for a Wireless Network on Small UAVs

Test Bed for a Wireless Network on Small UAVs Test Bed for a Wireless Network on Small UAVs Timothy X Brown Interdisciplinary Telecommunications Electrical and Computer Engineering University of Colorado Presented at the AIAA 3 rd Unmanned Unlimited

More information

A Harmful Interference Model for White Space Radios Timothy X Brown

A Harmful Interference Model for White Space Radios Timothy X Brown A Harmful Interference Model for White Space Radios Timothy X Brown Interdisciplinary Telecommunications Program Dept. of Electrical, Energy, and Computer Engineering University of Colorado at Boulder

More information

The Ad Hoc UAV Ground Network (AUGNet)

The Ad Hoc UAV Ground Network (AUGNet) The Ad Hoc UAV Ground Network (AUGNet) Timothy X Brown Interdisciplinary Telecommunications Electrical and Computer Engineering University of Colorado Presented at the AIAA 3 rd Unmanned Unlimited Technical

More information

Comments of Shared Spectrum Company

Comments of Shared Spectrum Company Before the DEPARTMENT OF COMMERCE NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION Washington, D.C. 20230 In the Matter of ) ) Developing a Sustainable Spectrum ) Docket No. 181130999 8999 01

More information

A Secure Transmission of Cognitive Radio Networks through Markov Chain Model

A Secure Transmission of Cognitive Radio Networks through Markov Chain Model A Secure Transmission of Cognitive Radio Networks through Markov Chain Model Mrs. R. Dayana, J.S. Arjun regional area network (WRAN), which will operate on unused television channels. Assistant Professor,

More information

SIMULATION OF COOPERATIVE SPECTRUM SENSING TECHNIQUES IN COGNITIVE RADIO USING MATLAB

SIMULATION OF COOPERATIVE SPECTRUM SENSING TECHNIQUES IN COGNITIVE RADIO USING MATLAB SIMULATION OF COOPERATIVE SPECTRUM SENSING TECHNIQUES IN COGNITIVE RADIO USING MATLAB 1 ARPIT GARG, 2 KAJAL SINGHAL, 3 MR. ARVIND KUMAR, 4 S.K. DUBEY 1,2 UG Student of Department of ECE, AIMT, GREATER

More information

Before the Federal Communications Commission Washington, D.C

Before the Federal Communications Commission Washington, D.C Before the Federal Communications Commission Washington, D.C. 20554 ) Revision of Part 15 of the Commission s Rules to ) Permit Unlicensed National Information ) Infrastructure (U-NII) Devices in the 5

More information

I Need Your Cost Estimate for a 10 Year Project by Next Week

I Need Your Cost Estimate for a 10 Year Project by Next Week I Need Your Cost Estimate for a 10 Year Project by Next Week A Case Study in Broad System Analysis: DoD Spectrum Reallocation Feasibility Study, 1755-1850 MHz Momentum From Industry & Response from Government

More information

Cognitive Radio for Future Internet Survey on CR Testbed & Product

Cognitive Radio for Future Internet Survey on CR Testbed & Product Cognitive Radio for Future Internet Survey on CR Testbed & Product Munhwan Choi Multimedia & Wireless Networking Laboratory School of Electrical Engineering and INMC Seoul National University, Seoul, Korea

More information

Industry Canada. Consultation on a Policy and Technical Framework for the Use of Non-Broadcasting

Industry Canada. Consultation on a Policy and Technical Framework for the Use of Non-Broadcasting Industry Canada Consultation on a Policy and Technical Framework for the Use of Non-Broadcasting Applications in the Television Broadcasting Bands Below 698 MHz Gazette Notice No. SMSE-012-11 August 2011

More information

The sensible guide to y

The sensible guide to y The sensible guide to 802.11y On September 26th, IEEE 802.11y-2008, an amendment to the IEEE 802.11-2007 standard, was approved for publication. 3650 Mhz The 802.11y project was initiated in response to

More information

xmax Solutions for Public Safety Applications

xmax Solutions for Public Safety Applications Private Mobile Broadband Wireless Networks xmax Solutions for Public Safety Applications xg and xmax are registered trademarks of xg Technology, Inc. Copyright 2014, All Rights Reserved. About xg Technology

More information

FULL-DUPLEX COGNITIVE RADIO: ENHANCING SPECTRUM USAGE MODEL

FULL-DUPLEX COGNITIVE RADIO: ENHANCING SPECTRUM USAGE MODEL FULL-DUPLEX COGNITIVE RADIO: ENHANCING SPECTRUM USAGE MODEL Abhinav Lall 1, O. P. Singh 2, Ashish Dixit 3 1,2,3 Department of Electronics and Communication Engineering, ASET. Amity University Lucknow Campus.(India)

More information

Developing a Sustainable Spectrum Strategy for America s Future, National Telecommunications and Information Administration

Developing a Sustainable Spectrum Strategy for America s Future, National Telecommunications and Information Administration Developing a Sustainable Spectrum Strategy for America s Future, National Telecommunications and Information Administration Reference: 21, 2018) 83 Fed. Reg. 65640, Docket No. 181130999 8999 01, RIN 0660-XC044

More information

Enhancing Access to the Radio Spectrum

Enhancing Access to the Radio Spectrum Enhancing Access to the Radio Spectrum Impacting the Wireless-Enabled Economy through NSF-sponsored Research Andrew Clegg EARS Program Director National Spectrum Management Association May 19 th, 2010

More information

Cognitive Radio Networks for Police Applications

Cognitive Radio Networks for Police Applications Spectrum Sharing Solutions Cognitive Radio Networks for Police Applications xg and xmax are registered trademarks of xg Technology, Inc. Copyright 2014, All Rights Reserved. About xg Technology THE COMPANY

More information

The Computer & Communications Industry Association (CCIA) 1 respectfully submits

The Computer & Communications Industry Association (CCIA) 1 respectfully submits Via ECFS Marlene H. Dortch Secretary Federal Communications Commission 445 Twelfth St., S.W. Washington, D.C. 20554 Re: Petition for Rulemaking to Permit MVDDS Use of the 12.2-12.7 GHz Band for Two- Way

More information

COGNITIVE RADIO AND DYNAMIC SPECTRUM SHARING

COGNITIVE RADIO AND DYNAMIC SPECTRUM SHARING COGNITIVE RADIO AND DYNAMIC SPECTRUM SHARING Cristian Ianculescu (Booz Allen Hamilton, McLean, VA, USA; ianculescu_cristian@bah.com); Andy Mudra (Booz Allen Hamilton, McLean, VA, USA; mudra_andy@bah.com).

More information

COMMENTS OF THE NATIONAL SPECTRUM MANAGEMENT ASSOCIATION. The National Spectrum Management Association ( NSMA ) hereby respectfully

COMMENTS OF THE NATIONAL SPECTRUM MANAGEMENT ASSOCIATION. The National Spectrum Management Association ( NSMA ) hereby respectfully Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 In the Matter of ) ) Amendment of Parts 2, 15, 80, 90, 97, and ) 101 of the Commission s Rules Regarding ) Implementation of the Final

More information

2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE. Network on Target: Remotely Configured Adaptive Tactical Networks. C2 Experimentation

2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE. Network on Target: Remotely Configured Adaptive Tactical Networks. C2 Experimentation 2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE Network on Target: Remotely Configured Adaptive Tactical Networks C2 Experimentation Alex Bordetsky Eugene Bourakov Center for Network Innovation

More information

For More Information on Spectrum Bridge White Space solutions please visit

For More Information on Spectrum Bridge White Space solutions please visit COMMENTS OF SPECTRUM BRIDGE INC. ON CONSULTATION ON A POLICY AND TECHNICAL FRAMEWORK FOR THE USE OF NON-BROADCASTING APPLICATIONS IN THE TELEVISION BROADCASTING BANDS BELOW 698 MHZ Publication Information:

More information

Project description Dynamic Spectrum Management and System Behavior in Cognitive Radio

Project description Dynamic Spectrum Management and System Behavior in Cognitive Radio Project description Dynamic Spectrum Management and System Behavior in Cognitive Radio 1. Background During the last few decades, the severe shortage of radio spectrum has been the main motivation always

More information

Cognitive Radio: Smart Use of Radio Spectrum

Cognitive Radio: Smart Use of Radio Spectrum Cognitive Radio: Smart Use of Radio Spectrum Miguel López-Benítez Department of Electrical Engineering and Electronics University of Liverpool, United Kingdom M.Lopez-Benitez@liverpool.ac.uk www.lopezbenitez.es,

More information

Shared Spectrum Company

Shared Spectrum Company Shared Spectrum Company 1595 Spring Hill Road, Suite 110, Vienna, Virginia 22182-2228, Phone 703-761-2818, Fax 703-761-2817 Testimony of Thomas Stroup Chief Executive Officer, Shared Spectrum Company before

More information

UWB: Fostering Innovation Through a Balanced Regulatory Framework

UWB: Fostering Innovation Through a Balanced Regulatory Framework UWB: Fostering Innovation Through a Balanced Regulatory Framework Ron Chase Chief, Technical Analysis Branch Office of Engineering and Technology 11 April, 2006 The views expressed herein are those of

More information

Address: 9110 Judicial Dr., Apt. 8308, San Diego, CA Phone: (240) URL:

Address: 9110 Judicial Dr., Apt. 8308, San Diego, CA Phone: (240) URL: Yongle Wu CONTACT INFORMATION Address: 9110 Judicial Dr., Apt. 8308, San Diego, CA 92122 Phone: (240)678-6461 Email: wuyongle@gmail.com URL: http://www.cspl.umd.edu/yongle/ EDUCATION University of Maryland,

More information

Implementation of Cognitive Radio Networks Based on Cooperative Spectrum Sensing Optimization

Implementation of Cognitive Radio Networks Based on Cooperative Spectrum Sensing Optimization www.semargroups.org, www.ijsetr.com ISSN 2319-8885 Vol.02,Issue.11, September-2013, Pages:1085-1091 Implementation of Cognitive Radio Networks Based on Cooperative Spectrum Sensing Optimization D.TARJAN

More information

Before the Federal Communications Commission Washington, D.C ) ) ) ) ) ) REPLY COMMENTS OF THE UTILITIES TECHNOLOGY COUNCIL

Before the Federal Communications Commission Washington, D.C ) ) ) ) ) ) REPLY COMMENTS OF THE UTILITIES TECHNOLOGY COUNCIL Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of Wireless Telecommunications Bureau and Office of Engineering and Technology Seek Comment Pursuant to the Spectrum Pipeline

More information

The world s first collaborative machine-intelligence competition to overcome spectrum scarcity

The world s first collaborative machine-intelligence competition to overcome spectrum scarcity The world s first collaborative machine-intelligence competition to overcome spectrum scarcity Paul Tilghman Program Manager, DARPA/MTO 8/11/16 1 This slide intentionally left blank 2 This slide intentionally

More information

IMPROVED PROBABILITY OF DETECTION AT LOW SNR IN COGNITIVE RADIOS

IMPROVED PROBABILITY OF DETECTION AT LOW SNR IN COGNITIVE RADIOS 87 IMPROVED PROBABILITY OF DETECTION AT LOW SNR IN COGNITIVE RADIOS Parvinder Kumar 1, (parvinderkr123@gmail.com)dr. Rakesh Joon 2 (rakeshjoon11@gmail.com)and Dr. Rajender Kumar 3 (rkumar.kkr@gmail.com)

More information

Cognitive Radio Network Setup without a Common Control Channel

Cognitive Radio Network Setup without a Common Control Channel Cognitive Radio Network Setup without a Common Control Channel Yogesh R Kondareddy*, Prathima Agrawal* and Krishna Sivalingam *Electrical and Computer Engineering, Auburn University, E-mail: {kondayr,

More information

Cognitive Radio Systems: A Network Technology Assessment

Cognitive Radio Systems: A Network Technology Assessment Cognitive Radio Systems: A Network Technology Assessment Prepared by: Jesse Dedman, Resident Technology Expert March 11, 2010 Key points The rising demand and fixed supply of radio spectrum have created

More information

Agenda Item No. C-29 AGENDA ITEM BRIEFING. Vice Chancellor and Dean of Engineering Director, Texas A&M Engineering Experiment Station

Agenda Item No. C-29 AGENDA ITEM BRIEFING. Vice Chancellor and Dean of Engineering Director, Texas A&M Engineering Experiment Station Agenda Item No. C-29 AGENDA ITEM BRIEFING Submitted by: Subject: M. Katherine Banks Vice Chancellor and Dean of Engineering Director, Texas A&M Engineering Experiment Station Establishment of the Center

More information

Before the Federal Communications Commission Washington, DC ) ) ) ) COMMENTS OF CTIA THE WIRELESS ASSOCIATION

Before the Federal Communications Commission Washington, DC ) ) ) ) COMMENTS OF CTIA THE WIRELESS ASSOCIATION Before the Federal Communications Commission Washington, DC 20554 In the Matter of Expanding Access to Mobile Wireless Services Onboard Aircraft WT Docket No. 13-301 To: The Commission COMMENTS OF CTIA

More information

White Sands Missile Range (WSMR) Radio Spectrum Enterprise Testbed: A Spectrum Allocation Solution

White Sands Missile Range (WSMR) Radio Spectrum Enterprise Testbed: A Spectrum Allocation Solution White Sands Missile Range (WSMR) Radio Spectrum Enterprise Testbed: A Spectrum Allocation Solution Spectrum Management Academic Partnership (SMAP) Juan F. Gonzalez, B.S.E.E Graduate Research Associate

More information

Exploiting the digital dividend a European approach: overview of the study for the European Commission

Exploiting the digital dividend a European approach: overview of the study for the European Commission Presentation for the Radio Spectrum Policy Group Exploiting the digital dividend a European approach: overview of the study for the European Commission Amit Nagpal, Lee Sanders, Richard Marsden, Gerry

More information

Achievable Transmission Capacity of Cognitive Radio Networks with Cooperative Relaying

Achievable Transmission Capacity of Cognitive Radio Networks with Cooperative Relaying Achievable Transmission Capacity of Cognitive Radio Networks with Cooperative Relaying Xiuying Chen, Tao Jing, Yan Huo, Wei Li 2, Xiuzhen Cheng 2, Tao Chen 3 School of Electronics and Information Engineering,

More information

Consultation Paper on Using a Portion of the Band GHz for Tactical Common Data Link (TCDL) Systems

Consultation Paper on Using a Portion of the Band GHz for Tactical Common Data Link (TCDL) Systems December 2008 Spectrum Management and Telecommunications Consultation Paper on Using a Portion of the Band 14.5-15.35 GHz for Tactical Common Data Link (TCDL) Systems Aussi disponible en français Department

More information

IEEE IoT Vertical and Topical Summit - Anchorage September 18th-20th, 2017 Anchorage, Alaska. Call for Participation and Proposals

IEEE IoT Vertical and Topical Summit - Anchorage September 18th-20th, 2017 Anchorage, Alaska. Call for Participation and Proposals IEEE IoT Vertical and Topical Summit - Anchorage September 18th-20th, 2017 Anchorage, Alaska Call for Participation and Proposals With its dispersed population, cultural diversity, vast area, varied geography,

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) ) COMMENTS OF CTIA THE WIRELESS ASSOCIATION

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) ) COMMENTS OF CTIA THE WIRELESS ASSOCIATION Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC 20554 In the Matter of Rapidly Deployable Aerial Telecommunications Architecture Capable of Providing Immediate Communications to Disaster Areas

More information

TAPR Status Report on Spread Spectrum Activity in the Amateur Radio Service

TAPR Status Report on Spread Spectrum Activity in the Amateur Radio Service TAPR Status Report on Spread Spectrum Activity in the Amateur Radio Service Greg Jones, WD5IVD Dewayne Hendricks, WA8DZP President, TAPR Chair, TAPR Regulatory Affairs Committee 8986-309 E. Tanque Verde

More information

Location Discovery in Sensor Network

Location Discovery in Sensor Network Location Discovery in Sensor Network Pin Nie Telecommunications Software and Multimedia Laboratory Helsinki University of Technology niepin@cc.hut.fi Abstract One established trend in electronics is micromation.

More information

Cooperative communication with regenerative relays for cognitive radio networks

Cooperative communication with regenerative relays for cognitive radio networks 1 Cooperative communication with regenerative relays for cognitive radio networks Tuan Do and Brian L. Mark Dept. of Electrical and Computer Engineering George Mason University, MS 1G5 4400 University

More information

REPORT DOCUMENTATION PAGE

REPORT DOCUMENTATION PAGE REPORT DOCUMENTATION PAGE Form Approved OMB NO. 0704-0188 The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions,

More information

Spectrum Sharing and Flexible Spectrum Use

Spectrum Sharing and Flexible Spectrum Use Spectrum Sharing and Flexible Spectrum Use Kimmo Kalliola Nokia Research Center FUTURA Workshop 16.8.2004 1 NOKIA FUTURA_WS.PPT / 16-08-2004 / KKa Terminology Outline Drivers and background Current status

More information

Before the Federal Communications Commission Washington, DC ) ) ) ) ) ) ) ) REPLY COMMENTS OF THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION

Before the Federal Communications Commission Washington, DC ) ) ) ) ) ) ) ) REPLY COMMENTS OF THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION Before the Federal Communications Commission Washington, DC 20554 In the Matter of the Petition of The State of Maryland Request for Waiver to permit operation of Airto-Ground radio equipment on 700 MHz

More information

the regulatory and licensing structure for small-cell Internet access on the 3.5 GHz band. 1

the regulatory and licensing structure for small-cell Internet access on the 3.5 GHz band. 1 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) Amendment of the Commission s Rules with ) GN Docket No. 12-354 Regard to Commercial Operations in the 3550- ) 3650

More information

2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE. Network on Target: Remotely Configured Adaptive Tactical Networks. C2 Experimentation

2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE. Network on Target: Remotely Configured Adaptive Tactical Networks. C2 Experimentation 2006 CCRTS THE STATE OF THE ART AND THE STATE OF THE PRACTICE Network on Target: Remotely Configured Adaptive Tactical Networks C2 Experimentation Alex Bordetsky Eugene Bourakov Center for Network Innovation

More information

TVWS: Leveraging unused TV broadcasting spectrum for two way communications. Ermanno Pietrosemoli

TVWS: Leveraging unused TV broadcasting spectrum for two way communications. Ermanno Pietrosemoli TVWS: Leveraging unused TV broadcasting spectrum for two way communications Ermanno Pietrosemoli Agenda Spectrum Allocation What are T V White Spaces TVWS Standards T/ICT4D model Deployment in Malawi Deployment

More information

4-206 CST Voice: (315) (o), (315) (m) Department of EECS Fax: (315)

4-206 CST Voice: (315) (o), (315) (m) Department of EECS Fax: (315) Hao Chen Contact Information Research Interests Education 4-206 CST Voice: (315) 443-4416 (o), (315) 569-3454 (m) Department of EECS Fax: (315) 443-2583 Syracuse University E-mail: hchen21@syr.edu Syracuse,

More information

OFFensive Swarm-Enabled Tactics (OFFSET)

OFFensive Swarm-Enabled Tactics (OFFSET) OFFensive Swarm-Enabled Tactics (OFFSET) Dr. Timothy H. Chung, Program Manager Tactical Technology Office Briefing Prepared for OFFSET Proposers Day 1 Why are Swarms Hard: Complexity of Swarms Number Agent

More information

Curriculum Vitae: Xin Wang

Curriculum Vitae: Xin Wang Curriculum Vitae: Xin Wang Contact Information Department of Electrical Engineering Phone: (561) 297-3467 Florida Atlantic University Fax: (561) 297-2800 777 Glades Road, Email: xin.wang@fau.edu Boca Raton,

More information

SPECTRUM SHARING: OVERVIEW AND CHALLENGES OF SMALL CELLS INNOVATION IN THE PROPOSED 3.5 GHZ BAND

SPECTRUM SHARING: OVERVIEW AND CHALLENGES OF SMALL CELLS INNOVATION IN THE PROPOSED 3.5 GHZ BAND SPECTRUM SHARING: OVERVIEW AND CHALLENGES OF SMALL CELLS INNOVATION IN THE PROPOSED 3.5 GHZ BAND David Oyediran, Graduate Student, Farzad Moazzami, Advisor Electrical and Computer Engineering Morgan State

More information

Spectrum Policy Task Force

Spectrum Policy Task Force Spectrum Policy Task Force Findings and Recommendations February 2003 mmarcus@fcc.gov www.fcc.gov/sptf 1 Outline Introduction Spectrum Policy Reform: The Time is Now Major Findings and Recommendations

More information

Spectrum for "5G" where is the problem? Jens Zander Scientific Director, KTH The Royal Institute of Technology, Stockholm, Sweden

Spectrum for 5G where is the problem? Jens Zander Scientific Director, KTH The Royal Institute of Technology, Stockholm, Sweden Spectrum for "5G" where is the problem? Jens Zander Scientific Director, Wireless@KTH KTH The Royal Institute of Technology, Stockholm, Sweden Outline Why do we need 5G? Transparency & mobile data tsunami

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) COMMENTS OF REDLINE COMMUNICATIONS INC.

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) COMMENTS OF REDLINE COMMUNICATIONS INC. Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC 20554 In the Matter of Amendment of the Commission's Rules with Regard to Commercial Operations in the 3550-3650 MHz Band GN Docket No. 12-354

More information

Detection and Prevention of Physical Jamming Attacks in Vehicular Environment

Detection and Prevention of Physical Jamming Attacks in Vehicular Environment Detection and Prevention of Physical Jamming Attacks in Vehicular Environment M-Tech Student 1 Mahendri 1, Neha Sawal 2 Assit. Prof. 2 &Department of CSE & NGF College of Engineering &Technology Palwal,

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 In the Matter of ) ) Amendment of Sections 90.20(d)(34) and 90.265 ) PS Docket No. 13-229 of the Commission s Rules to Facilitate the

More information

Wireless Network Pricing Chapter 2: Wireless Communications Basics

Wireless Network Pricing Chapter 2: Wireless Communications Basics Wireless Network Pricing Chapter 2: Wireless Communications Basics Jianwei Huang & Lin Gao Network Communications and Economics Lab (NCEL) Information Engineering Department The Chinese University of Hong

More information

Wireless Networks and Communications. 24 September 2013

Wireless Networks and Communications. 24 September 2013 IIT WiNCom Wireless Networks and Communications Research hcenter 24 September 2013 RF Spectrum Observatory, at IIT, Chicago, IL Antenna location Motivation Commercial? Ongoing, Increasing Spectrum Need

More information

Wireless LINC Initiative. Dewayne Hendricks Tetherless Access

Wireless LINC Initiative. Dewayne Hendricks Tetherless Access Wireless LINC Initiative Dewayne Hendricks Tetherless Access Historical Perspectives As fast as it gets First Premises First comes a technology As time passes it becomes more accessible/ affordable Good

More information

June 21, 2016 comments from AT&T's president of Technology Operations, Bill Smith, at the Wells Fargo 2016 Convergence and Connectivity Symposium

June 21, 2016 comments from AT&T's president of Technology Operations, Bill Smith, at the Wells Fargo 2016 Convergence and Connectivity Symposium Dynamic Spectrum Alliance Limited 21 St Thomas Street 3855 SW 153 rd Drive Bristol BS1 6JS Beaverton, OR 97006 United Kingdom United States http://www.dynamicspectrumalliance.org July 7, 2016 Ms. Marlene

More information

A Location-Aware Routing Metric (ALARM) for Multi-Hop, Multi-Channel Wireless Mesh Networks

A Location-Aware Routing Metric (ALARM) for Multi-Hop, Multi-Channel Wireless Mesh Networks A Location-Aware Routing Metric (ALARM) for Multi-Hop, Multi-Channel Wireless Mesh Networks Eiman Alotaibi, Sumit Roy Dept. of Electrical Engineering U. Washington Box 352500 Seattle, WA 98195 eman76,roy@ee.washington.edu

More information

A survey on broadcast protocols in multihop cognitive radio ad hoc network

A survey on broadcast protocols in multihop cognitive radio ad hoc network A survey on broadcast protocols in multihop cognitive radio ad hoc network Sureshkumar A, Rajeswari M Abstract In the traditional ad hoc network, common channel is present to broadcast control channels

More information

Real-time Cooperative Behavior for Tactical Mobile Robot Teams. September 10, 1998 Ronald C. Arkin and Thomas R. Collins Georgia Tech

Real-time Cooperative Behavior for Tactical Mobile Robot Teams. September 10, 1998 Ronald C. Arkin and Thomas R. Collins Georgia Tech Real-time Cooperative Behavior for Tactical Mobile Robot Teams September 10, 1998 Ronald C. Arkin and Thomas R. Collins Georgia Tech Objectives Build upon previous work with multiagent robotic behaviors

More information

COGNITIVE RADIO TECHNOLOGY: ARCHITECTURE, SENSING AND APPLICATIONS-A SURVEY

COGNITIVE RADIO TECHNOLOGY: ARCHITECTURE, SENSING AND APPLICATIONS-A SURVEY COGNITIVE RADIO TECHNOLOGY: ARCHITECTURE, SENSING AND APPLICATIONS-A SURVEY G. Mukesh 1, K. Santhosh Kumar 2 1 Assistant Professor, ECE Dept., Sphoorthy Engineering College, Hyderabad 2 Assistant Professor,

More information

Programmable Wireless Networking Overview

Programmable Wireless Networking Overview Programmable Wireless Networking Overview Dr. Joseph B. Evans Program Director Computer and Network Systems Computer & Information Science & Engineering National Science Foundation NSF Programmable Wireless

More information

University of Science and Technology of China (USTC), Hefei, China M.S., Electrical Engineering, July 2002

University of Science and Technology of China (USTC), Hefei, China M.S., Electrical Engineering, July 2002 Hao Chen Contact Information Research Interests Education ENGR 222 Voice: (208) 426-1020 (o), (315) 569-3454 (m) ECE Department Fax: (208) 426-2470 Boise State University E-mail: haochen@boisestate.edu

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. ) ) ) ) )

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. ) ) ) ) ) Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. In the Matter of Amendment of Part 90 of the Commission s Rules ) ) ) ) ) WP Docket No. 07-100 To: The Commission COMMENTS OF THE AMERICAN

More information

Cognitive Radio Networks

Cognitive Radio Networks 1 Cognitive Radio Networks Dr. Arie Reichman Ruppin Academic Center, IL שישי טכני-רדיו תוכנה ורדיו קוגניטיבי- 1.7.11 Agenda Human Mind Cognitive Radio Networks Standardization Dynamic Frequency Hopping

More information

Distributed spectrum sensing in unlicensed bands using the VESNA platform. Student: Zoltan Padrah Mentor: doc. dr. Mihael Mohorčič

Distributed spectrum sensing in unlicensed bands using the VESNA platform. Student: Zoltan Padrah Mentor: doc. dr. Mihael Mohorčič Distributed spectrum sensing in unlicensed bands using the VESNA platform Student: Zoltan Padrah Mentor: doc. dr. Mihael Mohorčič Agenda Motivation Theoretical aspects Practical aspects Stand-alone spectrum

More information

Affordable Backhaul for Rural Broadband: Opportunities in TV White Space in India

Affordable Backhaul for Rural Broadband: Opportunities in TV White Space in India Affordable Backhaul for Rural Broadband: Opportunities in TV White Space in India Abhay Karandikar Professor and Head Department of Electrical Engineering Indian Institute of Technology Bombay, Mumbai

More information

Jager UAVs to Locate GPS Interference

Jager UAVs to Locate GPS Interference JIFX 16-1 2-6 November 2015 Camp Roberts, CA Jager UAVs to Locate GPS Interference Stanford GPS Research Laboratory and the Stanford Intelligent Systems Lab Principal Investigator: Sherman Lo, PhD Area

More information

Trends in the Wireless Industry

Trends in the Wireless Industry Trends in the Wireless Industry Dennis A. Roberson WiNCom - Wireless Network & Communications Research Center Illinois Institute of Technology Illinois Institute of Technology 1 Fundamental Challenge Spectrum

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 In the Matter of ) ) Revision of Part 15 of the Commission s ) ET Docket No. 13-49 Rules to Permit Unlicensed National ) Information

More information

KAIST Master of Science in Electrical Engineering (GPA 4.02/4.3) Feb Feb. 2012

KAIST Master of Science in Electrical Engineering (GPA 4.02/4.3) Feb Feb. 2012 SEONGAH JEONG Work Address Information & Electronics Research Institute Korea Advanced Institute of Science and Technology () Daejeon, Rep. of Korea Tel:+82 42 350 7522, Cell:+82 10 3048 2111 Home Address

More information

RESPONSE TO THE HOUSE OF COMMONS TRANSPORT SELECT COMMITTEE INQUIRY INTO GALILEO. Memorandum submitted by The Royal Academy of Engineering

RESPONSE TO THE HOUSE OF COMMONS TRANSPORT SELECT COMMITTEE INQUIRY INTO GALILEO. Memorandum submitted by The Royal Academy of Engineering RESPONSE TO THE HOUSE OF COMMONS TRANSPORT SELECT COMMITTEE INQUIRY INTO GALILEO Memorandum submitted by The Royal Academy of Engineering September 2004 Executive Summary The Royal Academy of Engineering

More information

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) ) COMMENTS OF THE NATIONAL ASSOCIATION OF BROADCASTERS

Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC ) ) ) ) ) ) COMMENTS OF THE NATIONAL ASSOCIATION OF BROADCASTERS Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC 20554 In the In the Matter of Revision of Part 15 of the Commission s Rules to Permit Unlicensed National Information Infrastructure (U-NII Devices

More information

Zhen Kan Formal Education Professional Experience Research Interests Publications Book Chapters Zhen Kan Z. Kan Journal Papers Z. Kan Z. Kan Z.

Zhen Kan Formal Education Professional Experience Research Interests Publications Book Chapters Zhen Kan Z. Kan Journal Papers Z. Kan Z. Kan Z. Zhen Kan 2416A Seamans Center, The University of Iowa, Iowa City, IA, 52242, USA https://research.engineering.uiowa.edu/nsr/ E-mail: zhen-kan@uiowa.edu Phone: (352)-871-7517 Formal Education PhD in Mechanical

More information

46 th CMOS CONGRESS, MONTREAL, 29 MAY - 1 JUN C2.6, Satellite Data Assimilation in NWP-2, Abstract June 2012

46 th CMOS CONGRESS, MONTREAL, 29 MAY - 1 JUN C2.6, Satellite Data Assimilation in NWP-2, Abstract June 2012 www.ec.gc.ca Outcomes of the World Radiocommunication Conference 2012 (WRC-12) Successes, Challenges and Opportunities for the National Meteorological and Hydrological Services (NMHS) 46 th CMOS CONGRESS,

More information

Lightweight Decentralized Algorithm for Localizing Reactive Jammers in Wireless Sensor Network

Lightweight Decentralized Algorithm for Localizing Reactive Jammers in Wireless Sensor Network International Journal Of Computational Engineering Research (ijceronline.com) Vol. 3 Issue. 3 Lightweight Decentralized Algorithm for Localizing Reactive Jammers in Wireless Sensor Network 1, Vinothkumar.G,

More information

Innovative Science and Technology Publications

Innovative Science and Technology Publications Innovative Science and Technology Publications International Journal of Future Innovative Science and Technology, ISSN: 2454-194X Volume-4, Issue-2, May - 2018 RESOURCE ALLOCATION AND SCHEDULING IN COGNITIVE

More information

NIST Activities in Wireless Coexistence

NIST Activities in Wireless Coexistence NIST Activities in Wireless Coexistence Communications Technology Laboratory National Institute of Standards and Technology Bill Young 1, Jason Coder 2, Dan Kuester, and Yao Ma 1 william.young@nist.gov,

More information

Glossary of Terms Black Sky Event: Blue Sky Operations: Federal Communications Commission (FCC): Grey Sky Operations:

Glossary of Terms Black Sky Event: Blue Sky Operations: Federal Communications Commission (FCC): Grey Sky Operations: Glossary of Terms The following is a list of terms commonly used in the electric utility industry regarding utility communications systems and emergency response. The purpose of this document is to provide

More information

Distributed Vision System: A Perceptual Information Infrastructure for Robot Navigation

Distributed Vision System: A Perceptual Information Infrastructure for Robot Navigation Distributed Vision System: A Perceptual Information Infrastructure for Robot Navigation Hiroshi Ishiguro Department of Information Science, Kyoto University Sakyo-ku, Kyoto 606-01, Japan E-mail: ishiguro@kuis.kyoto-u.ac.jp

More information

CBRS Commercial Weather RADAR Comments. Document WINNF-RC-1001 Version V1.0.0

CBRS Commercial Weather RADAR Comments. Document WINNF-RC-1001 Version V1.0.0 CBRS Commercial Weather RADAR Comments Document WINNF-RC-1001 Version V1.0.0 24 July 2017 Spectrum Sharing Committee Steering Group CBRS Commercial Weather RADAR Comments WINNF-RC-1001-V1.0.0 TERMS, CONDITIONS

More information

Chapter 10. User Cooperative Communications

Chapter 10. User Cooperative Communications Chapter 10 User Cooperative Communications 1 Outline Introduction Relay Channels User-Cooperation in Wireless Networks Multi-Hop Relay Channel Summary 2 Introduction User cooperative communication is a

More information

Spectrum Management: Policy and Regulatory Models

Spectrum Management: Policy and Regulatory Models Spectrum Management: Policy and Regulatory Models American Meteorological Society Policy Program May 25, 2016 Scott Pace George Washington University Space Policy Institute Washington, D.C. GPS enables

More information

Hedonic Coalition Formation for Distributed Task Allocation among Wireless Agents

Hedonic Coalition Formation for Distributed Task Allocation among Wireless Agents Hedonic Coalition Formation for Distributed Task Allocation among Wireless Agents Walid Saad, Zhu Han, Tamer Basar, Me rouane Debbah, and Are Hjørungnes. IEEE TRANSACTIONS ON MOBILE COMPUTING, VOL. 10,

More information

TUCN RESEARCH CONFERENCE Energy Efficiency in Cognitive Wireless Networks

TUCN RESEARCH CONFERENCE Energy Efficiency in Cognitive Wireless Networks TUCN RESEARCH CONFERENCE 15.12.2014 Communications Department Energy Efficiency in Cognitive Wireless Networks Project manager: Assoc. Prof. Ligia Cremene, Ph.D http://users.utcluj.ro/~cligia Adaptive

More information

Radio Spectrum Management. Executive Level Training for Regulators and Policy-Makers Hotel Kowloon Shangri-la, Hong Kong, China December 2-3, 2006

Radio Spectrum Management. Executive Level Training for Regulators and Policy-Makers Hotel Kowloon Shangri-la, Hong Kong, China December 2-3, 2006 Radio Spectrum Management Executive Level Training for Regulators and Policy-Makers Hotel Kowloon Shangri-la, Hong Kong, China December 2-3, 2006 Creating a Regulatory Framework for New Technologies: Changes

More information

Ya WANG, Ph.D Assistant Professor State University of New York, Stony Brook

Ya WANG, Ph.D Assistant Professor State University of New York, Stony Brook Ya WANG, Ph.D Assistant Professor State University of New York, Stony Brook Department of Mechanical Engineering State University of New York, Stony Brook 153 Light Engineering, Stony Brook, NY 11790 Phone:

More information

Sharing Connected Vehicle Infrastructure for Safety Applications, Smart City and Internet Access

Sharing Connected Vehicle Infrastructure for Safety Applications, Smart City and Internet Access Sharing Connected Vehicle Infrastructure for Safety Applications, Smart City and Internet Access FINAL RESEARCH REPORT Jon M. Peha Contract No. DTRT12GUTG11 DISCLAIMER The contents of this report reflect

More information

Before the Federal Communications Commission Washington DC 20554

Before the Federal Communications Commission Washington DC 20554 Before the Federal Communications Commission Washington DC 20554 In the Matter of ) ) Encina Communications Corporation, ) ULS File No. 0007928686 Request for Authorization to Use a ) Multi-Directional

More information

Attack-Proof Collaborative Spectrum Sensing in Cognitive Radio Networks

Attack-Proof Collaborative Spectrum Sensing in Cognitive Radio Networks Attack-Proof Collaborative Spectrum Sensing in Cognitive Radio Networks Wenkai Wang, Husheng Li, Yan (Lindsay) Sun, and Zhu Han Department of Electrical, Computer and Biomedical Engineering University

More information

EWANT: The Emulated Wireless Ad Hoc Network Testbed

EWANT: The Emulated Wireless Ad Hoc Network Testbed EWANT: The Emulated Wireless Ad Hoc Network Testbed Sagar Sanghani, Timothy X Brown, Shweta Bhandare, Sheetalkumar Doshi University of Colorado at Boulder, 80309-0530 {sanghani, timxb, bhandare, doshi}@colorado.edu

More information

COMMISSION IMPLEMENTING DECISION. of XXX

COMMISSION IMPLEMENTING DECISION. of XXX EUROPEAN COMMISSION Brussels, XXX [ ](2018) XXX draft COMMISSION IMPLEMENTING DECISION of XXX on the harmonisation of radio spectrum for use by short range devices within the 874-876 and 915-921 MHz frequency

More information

1. Spectrum Management Process:

1. Spectrum Management Process: SPECTRUM Abstract Radio Frequency (RF) spectrum is a scarce limited natural resource. It is part of the electromagnetic spectrum, arbitrarily up to about 3000 GHz, beyond which are infra-red rays, seven

More information

Wireless robotics: issues and the need for standardization

Wireless robotics: issues and the need for standardization Wireless robotics: issues and the need for standardization Alois Knoll fortiss ggmbh & Chair Robotics and Embedded Systems at TUM 19-Apr-2010 Robots have to operate in diverse environments ( BLG LOGISTICS)

More information

Cognitive Radio Spectrum Access with Prioritized Secondary Users

Cognitive Radio Spectrum Access with Prioritized Secondary Users Appl. Math. Inf. Sci. Vol. 6 No. 2S pp. 595S-601S (2012) Applied Mathematics & Information Sciences An International Journal @ 2012 NSP Natural Sciences Publishing Cor. Cognitive Radio Spectrum Access

More information