Sideseadmed (IRT0040) loeng 2/ kevad Raadiovõrgu ressursikasutus. Avo
|
|
- Earl Reeves
- 5 years ago
- Views:
Transcription
1 Sideseadmed (IRT0040) loeng 2/ kevad 2012 Raadiovõrgu ressursikasutus Avo 1
2 Too Much Growth? Spectrum scarcity due to command-andcontrol structure of frequency allocation Fixed amount of spectrum versus growing number of wireless applications/users License holders maintain exclusive rights to their allocated spectrum Purchased during a spectrum auction Allocated via government decree, e.g., military, television
3 Needs Public safety sector especially affected by these issues Need for reliable communications across platforms employing different communication standards different wireless standards for a wide range of applications Tower of Babel syndrome Interoperability issues
4 Peatu ja oota 4
5 Erinevad võrgud kooskasutuses Resource Manager (collection of radio circumstance information) Base Station IMT-2000 CDMA Direct Spread User terminal IMT-2000 OFDMA TDD WMAN Internet RLAN Application Server Heterogeneous radio network Controll Equipment 5
6 ITU jaotus 6
7 Software Defined Radio
8 Spektrikasutus 8
9 USRP Universal Software Radio Peripheral 2 (USRP2) Unit Motherboard FPGA DAC / ADC Daughterboards RF front-end Interchangeable
10 10 Classical multi-user channels
11 Defineerimine Cognitive radio is an intelligent wireless communication system that is aware of its surrounding environment (i.e., outside world), and uses the methodology of understanding-by-building to learn from the environment and adapt its internal states to statistical variations in the incoming RF stimuli by making corresponding changes in certain operating parameters (e.g., transmit-power, carrier-frequency, and modulation strategy) in real-time, with two primary objectives in mind: highly reliable communications whenever and wherever needed; efficient utilization of the radio spectrum. S. Haykin, Cognitive Radio: Brain-Empowered Wireless Communications, IEEE J-SAC, Feb
12 Esmane ja teisene kasutus Primary users Secondary/cognitive users 12
13 Spektrikasutus Measurement studies have shown that in both the time and frequency domains that spectrum is underutilized Spectrum Holes
14 Dynamic Spectrum Access Fill with secondary users Spectrum measurement across the 900 khz 1 GHz band (Lawrence, KS, USA)
15 Kasutus ajas
16 Kasutuse mudelid 16
17 Kasutusnäited Measured Spectrum Occupancy in Chicago and New York City PLM, Amateur, others: MHz TV 2-6, RC: MHz Air traffic Control, Aero Nav: MHz Fixed Mobile, Amateur, others: MHz TV 7-13: MHz Maritime Mobile, Amateur, others: MHz Fixed Mobile, Aero, others: MHz Amateur, Fixed, Mobile, Radiolocation, MHz TV 14-20: MHz TV 21-36: MHz TV 37-51: MHz TV 52-69: MHz Cell phone and SMR: MHz Unlicensed: MHz Paging, SMS, Fixed, BX Aux, and FMS: MHz IFF, TACAN, GPS, others: MHz Amateur: MHz Aero Radar, Military: MHz Space/Satellite, Fixed Mobile, Telemetry: MHz Mobile Satellite, GPS, Meteorologicial: MHz Fixed, Fixed Mobile: MHz PCS, Asyn, Iso: MHz TV Aux: MHz Common Carriers, Private, MDS: MHz Space Operation, Fixed: MHz Amateur, WCS, DARS: MHz Telemetry: MHz U-PCS, ISM (Unlicensed): MHz ITFS, MMDS: MHz Surveillance Radar: MHz Chicago New York City 0.0% 25.0% 50.0% 75.0% 100.0% Spectrum Occupancy
18 Mõõteauto (ca 1927)
19 Multicarrier Transmitter Receiver
20 Spectrum Opportunity A channel is an opportunity for A B if the transmission from A to B can succeed the interference power to primary is below a prescribed level 20
21 Spectrum Sharing
22 Saatjate kavandamine
23 Underlay vs overlay
24 Non-contiguous OFDM (NC-OFDM) NC-OFDM transmitter 24
25 Non-contiguous OFDM (NC-OFDM) NC-OFDM receiver 25
26 Parameter Relationships Minimize BER Transmit Power Symbol Rate TDD Modulation Index Minimize Spectral Interference Maximize Throughput Frame Size Bandwidth Minimize Spectral Efficiency Minimize Power Modulation Type Coding Rate 26
27 BER M-QAM QAM 8QAM 16QAM 32QAM 64QAM 128QAM 256QAM 512QAM 1024QAM 2048QAM SNR(dB)
28 Goodput (normalized to Rc) Goodput Goodput versus frame size for varying bit error rates x x MTU (bytes)
29 Packet networks
30 Depicting the history of cognitive radio 30
31 IEEE SCC41
32 TV White Spaces (USA) IEEE WG starts working on a CR based PHY/MAC spec Notice of Inquiry Notice of Proposed Rule Making Public Notice 2003 Report on Sensing, Interference to DTVs & Other Radios 2004 Report on Interference Rej. Cap. of DTV Rx s 2005 Sep Initial R & O and Further NPRM Sensing Proto Testing Mar July 2007 Mar IEEE first official LB June 2008 Aug Nov Dec Feb Mar June 2009 Field Tests Final Rule and Order Final rules in Federal Registry IEEE starts 2 nd LB 32
33 Fixed point-to-multipoint wireless regional area networks (WRAN) Reuse of TV broadcast bands on a non-interfering basis Specify Cognitive Radio based PHY/MAC layers Cognitive Radio Entity for spectrum management IEEE Master-Slave architecture: Base Stations (BS) Cusumer Premise Equipments (CPEs) 33
34 The PHY overview Parameters Frequency range Bandwidth Data rate Spectral Efficiency Payload modulation Transmit EIRP Specification 54~862 MHz 6 and/or 7, and/or 8 MHz 1.51~22.69 Mb/s 0.25~3.78 b/s/hz QPSK, 16-QAM, 64-QAM Default 4W for CPEs Multiple Access OFDMA FFT Mode 2048 Cyclic Prefix Modes ¼, 1/8, 1/16, 1/32 Duplex TDD 34
35 Sensing architecture and strategy Begin Sensing Coarse Sensing (Analog, RSSI, MRSS, FFT ) Fine Sensing Spectrum Usage Database (BS) MAC (Select single channel) FFT Spectral Correlation CSFD AAC Field Sync ATSC Segment Sync Optimum Radiometer Multi-cycle Detector Y occupied? End Sensing N
36 Sensing
37 Coexistence Beacon Protocol (CBP) CBP packets carry the schedule of the QPs and self-coexistence information Other cases also possible depending on location of the CPEs Case 1: Case 2: 37
38 Security Spectrum sensing data falsification (SSDF) attacks
39 Public Safety Modern public safety networks are designed around some important ideas: Cellular frequency reuse Trunking Digital modulation Frequency duplexing Time division multiple access
40 GNU Radio Components Hardware Frontend Host Computer RF Frontend (Daugtherboard) ADC/DAC and Digital Frontend (USRP) GNU Radio Software
41 Lingid
Sideseadmed IRT 0040 Cognitive Radio Communications. Avo 08. märts 2011
Sideseadmed IRT 0040 Cognitive Radio Communications Avo 08. märts 2011 Increasing Demand Rapid growth in the wireless communications sector, requiring more spectral bandwidth Increasing number of users
More informationTrends 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 informationCognitive Radio: Fundamentals and Opportunities
San Jose State University From the SelectedWorks of Robert Henry Morelos-Zaragoza Fall August 24, 2007 Cognitive Radio: Fundamentals and Opportunities Robert H Morelos-Zaragoza, San Jose State University
More informationCognitive Radio Communications for Dynamic Spectrum Access. Outline
Cognitive Radio Communications for Dynamic Spectrum Access Slides based on set provided by Alexander M. Wyglinski Research Assistant Professor ITTC The University of Kansas This work was generously supported
More informationCognitive 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 informationWe are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors
We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists 3,900 116,000 120M Open access books available International authors and editors Downloads Our
More informationTo Fragment or Not To Fragment: Viability of NC OFDMA in Multihop Networks. Muhammad Nazmul Islam WINLAB, Rutgers University
To Fragment or Not To Fragment: Viability of NC OFDMA in Multihop Networks Muhammad Nazmul Islam WINLAB, Rutgers University Availability of Non Contiguous Spectrum Demand for wireless services is increasing
More informationCognitive Radio Networks Part II
Cognitive Radio Networks Part II 13.10.2011 Page 1 Part II organization Cognitive Radio Network Fundamentals for Cognitive Radio Reconfiguration, adaptation, and optimization Cognitive Research: Knowledge
More informationGuide to Wireless Communications, Third Edition Cengage Learning Objectives
Guide to Wireless Communications, Third Edition Chapter 9 Wireless Metropolitan Area Networks Objectives Explain why wireless metropolitan area networks (WMANs) are needed Describe the components and modes
More informationDynamic Spectrum Sharing
COMP9336/4336 Mobile Data Networking www.cse.unsw.edu.au/~cs9336 or ~cs4336 Dynamic Spectrum Sharing 1 Lecture overview This lecture focuses on concepts and algorithms for dynamically sharing the spectrum
More informationSystem Design Considerations for an Analog Frontend Receiver in Cognitive Radio Applications
System Design Considerations for an Analog Frontend Receiver in Cognitive Radio Applications Sandro Ferreira, Filipe Baumgratz, Sergio Bampi Graduate Program on Microelectronics 04/30/2013 Simpósio Sul
More informationThe 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 informationOverview of IEEE Broadband Wireless Access Standards. Timo Smura Contents. Network topologies, frequency bands
Overview of IEEE 802.16 Broadband Wireless Access Standards Timo Smura 24.02.2004 Contents Fixed Wireless Access networks Network topologies, frequency bands IEEE 802.16 standards Air interface: MAC +
More informationImproving the Data Rate of OFDM System in Rayleigh Fading Channel Using Spatial Multiplexing with Different Modulation Techniques
2009 International Symposium on Computing, Communication, and Control (ISCCC 2009) Proc.of CSIT vol.1 (2011) (2011) IACSIT Press, Singapore Improving the Data Rate of OFDM System in Rayleigh Fading Channel
More informationRadio interface standards of vehicle-tovehicle and vehicle-to-infrastructure communications for Intelligent Transport System applications
Recommendation ITU-R M.2084-0 (09/2015) Radio interface standards of vehicle-tovehicle and vehicle-to-infrastructure communications for Intelligent Transport System applications M Series Mobile, radiodetermination,
More informationCognitive Ultra Wideband Radio
Cognitive Ultra Wideband Radio Soodeh Amiri M.S student of the communication engineering The Electrical & Computer Department of Isfahan University of Technology, IUT E-Mail : s.amiridoomari@ec.iut.ac.ir
More informationPlanning of LTE Radio Networks in WinProp
Planning of LTE Radio Networks in WinProp AWE Communications GmbH Otto-Lilienthal-Str. 36 D-71034 Böblingen mail@awe-communications.com Issue Date Changes V1.0 Nov. 2010 First version of document V2.0
More informationInterference management Within 3GPP LTE advanced
Interference management Within 3GPP LTE advanced Konstantinos Dimou, PhD Senior Research Engineer, Wireless Access Networks, Ericsson research konstantinos.dimou@ericsson.com 2013-02-20 Outline Introduction
More informationSecondary User Access for IoT Applications in the FM Radio band using FS-FBMC Kenny Barlee, University of Strathclyde (Scotland)
Secondary User Access for IoT Applications in the FM Radio band using FS-FBMC Kenny Barlee, University of Strathclyde (Scotland) 1/25 Overview Background + Motivation Transmitter Design Results as in paper
More informationDistributed 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 informationAustralian Journal of Basic and Applied Sciences
ISSN:1991-8178 Australian Journal of Basic and Applied Sciences Journal home page: www.ajbasweb.com Detection of Malicious Secondary User Using Spectral Correlation Technique in Cognitive Radio Network
More informationSoftware Radio, GNU Radio, and the USRP Product Family
Software Radio, GNU Radio, and the USRP Product Family Open Hardware for Software Radio Matt Ettus, matt@ettus.com Software Radio Simple, general-purpose hardware Do as much as possible in software Everyone's
More informationSenior Design and Graduate Projects Using Software Defined Radio (SDR)
Senior Design and Graduate Projects Using Software Defined Radio (SDR) 1 PROF. SHARLENE KATZ PROF. JAMES FLYNN PROF. DAVID SCHWARTZ Overview What is a Communications System? Traditional hardware radio
More informationL-DACS1/2 Data Link Analysis Part I: Functional Analysis
L-DACS1/2 Data Link Analysis Part I: Functional Analysis Raj Jain Jain@ACM.ORG Presentation to Boeing February 4, 2010 1 Overview Application Aeronautical Datalink Evolution Spectrum Implications of Channel
More informationPrototyping Next-Generation Communication Systems with Software-Defined Radio
Prototyping Next-Generation Communication Systems with Software-Defined Radio Dr. Brian Wee RF & Communications Systems Engineer 1 Agenda 5G System Challenges Why Do We Need SDR? Software Defined Radio
More informationCognitive Radio Enabling Opportunistic Spectrum Access (OSA): Challenges and Modelling Approaches
Cognitive Radio Enabling Opportunistic Spectrum Access (OSA): Challenges and Modelling Approaches Xavier Gelabert Grupo de Comunicaciones Móviles (GCM) Instituto de Telecomunicaciones y Aplicaciones Multimedia
More informationWireless Standards. RAN < 100 km , up to 22 Mb/s WAN (proposed) GSM, EDGE, 3G, CDMA, LTE MAN <50 km d, e, m*
IEEE 802.22 Basics Wireless standards Software Defined Radio Cognitive Radio 802.22 coverage Dynamic Spectrum usage Regulatory Issues Some regional Initiatives Examples of currently available equipment
More informationREPORT ITU-R M Characteristics of broadband wireless access systems operating in the land mobile service for use in sharing studies
Rep. ITU-R M.2116 1 REPORT ITU-R M.2116 Characteristics of broadband wireless access systems operating in the land mobile service for use in sharing studies (Questions ITU-R 1/8 and ITU-R 7/8) (2007) 1
More informationUniversity of Bristol - Explore Bristol Research. Link to publication record in Explore Bristol Research PDF-document.
Mansor, Z. B., Nix, A. R., & McGeehan, J. P. (2011). PAPR reduction for single carrier FDMA LTE systems using frequency domain spectral shaping. In Proceedings of the 12th Annual Postgraduate Symposium
More informationIntroduction to WiMAX Dr. Piraporn Limpaphayom
Introduction to WiMAX Dr. Piraporn Limpaphayom 1 WiMAX : Broadband Wireless 2 1 Agenda Introduction to Broadband Wireless Overview of WiMAX and Application WiMAX: PHY layer Broadband Wireless Channel OFDM
More informationVietnam Spectrum Occupancy Measurements and Analysis for Cognitive Radio Applications
Vietnam Spectrum Occupancy Measurements and Analysis for Cognitive Radio Applications Vo Nguyen Quoc Bao Posts and Telecommunication Institute of Technology Outline Introduction Measurement and Procedure
More informationNI Technical Symposium ni.com
NI Technical Symposium 2016 1 Build 5G Systems Today Avichal Kulshrestha 2 How We Consume Data is Changing 3 Where We Are Today Explosion of wireless data and connected devices Last year s mobile data
More informationOBJECTIVES. Understand the basic of Wi-MAX standards Know the features, applications and advantages of WiMAX
OBJECTIVES Understand the basic of Wi-MAX standards Know the features, applications and advantages of WiMAX INTRODUCTION WIMAX the Worldwide Interoperability for Microwave Access, is a telecommunications
More informationWireless Intro : Computer Networking. Wireless Challenges. Overview
Wireless Intro 15-744: Computer Networking L-17 Wireless Overview TCP on wireless links Wireless MAC Assigned reading [BM09] In Defense of Wireless Carrier Sense [BAB+05] Roofnet (2 sections) Optional
More informationCognitive Cellular Systems in China Challenges, Solutions and Testbed
ITU-R SG 1/WP 1B WORKSHOP: SPECTRUM MANAGEMENT ISSUES ON THE USE OF WHITE SPACES BY COGNITIVE RADIO SYSTEMS (Geneva, 20 January 2014) Cognitive Cellular Systems in China Challenges, Solutions and Testbed
More information2015 The MathWorks, Inc. 1
2015 The MathWorks, Inc. 1 What s Behind 5G Wireless Communications? 서기환과장 2015 The MathWorks, Inc. 2 Agenda 5G goals and requirements Modeling and simulating key 5G technologies Release 15: Enhanced Mobile
More informationNetworking Devices over White Spaces
Networking Devices over White Spaces Ranveer Chandra Collaborators: Thomas Moscibroda, Rohan Murty, Victor Bahl Goal: Deploy Wireless Network Base Station (BS) Good throughput for all nodes Avoid interfering
More informationDemocracy in Action. Quantization, Saturation, and Compressive Sensing!"#$%&'"#("
Democracy in Action Quantization, Saturation, and Compressive Sensing!"#$%&'"#(" Collaborators Petros Boufounos )"*(&+",-%.$*/ 0123"*4&5"*"%16( Background If we could first know where we are, and whither
More informationSPECTRUM SENSING BY CYCLO-STATIONARY DETECTOR
SPECTRUM SENSING BY CYCLO-STATIONARY DETECTOR 1 NIYATI SOHNI, 2 ANAND MANE 1,2 Sardar Patel Institute of technology Mumbai, Sadar Patel Institute of Technology Mumbai E-mail: niyati23@gmail.com, anand_mane@spit.ac.in
More information[Raghuwanshi*, 4.(8): August, 2015] ISSN: (I2OR), Publication Impact Factor: 3.785
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY PERFORMANCE ANALYSIS OF INTEGRATED WIFI/WIMAX MESH NETWORK WITH DIFFERENT MODULATION SCHEMES Mr. Jogendra Raghuwanshi*, Mr. Girish
More informationFBMC for TVWS. Date: Authors: Name Affiliations Address Phone
November 2013 FBMC for TVWS Date: 2014-01-22 Doc. 22-14-0012-00-000b Authors: Name Affiliations Address Phone email Dominique Noguet CEA-LETI France dominique.noguet[at]cea.fr Notice: This document has
More informationWireless Communication Systems: Implementation perspective
Wireless Communication Systems: Implementation perspective Course aims To provide an introduction to wireless communications models with an emphasis on real-life systems To investigate a major wireless
More informationA Novel Design In Digital Communication Using Software Defined Radio
A Novel Design In Digital Communication Using Software Defined Radio Mandava Akhil Kumar 1, Pillem Ramesh 2 1 Student, ECE,KL UNIVERSITY, VADDESWARAM,A.P,INDIA 2 Assistant Proffesor,ECE,KL University,VADDESWARAM,A.P,INDIA
More informationBit Error Rate Performance Evaluation of Various Modulation Techniques with Forward Error Correction Coding of WiMAX
Bit Error Rate Performance Evaluation of Various Modulation Techniques with Forward Error Correction Coding of WiMAX Amr Shehab Amin 37-20200 Abdelrahman Taha 31-2796 Yahia Mobasher 28-11691 Mohamed Yasser
More informationLecture 4 October 10, Wireless Access. Graduate course in Communications Engineering. University of Rome La Sapienza. Rome, Italy
Lecture 4 October 10, 2018 Wireless Access Graduate course in Communications Engineering University of Rome La Sapienza Rome, Italy 2018-2019 Inter-system Interference Outline Inter-system interference
More informationCognitive Radio. Master Universitario en Ingeniería de Telecomunicación. I. Santamaría. Universidad de Cantabria
Cognitive Radio Master Universitario en Ingeniería de Telecomunicación I. Santamaría Universidad de Cantabria Contents Introduction Interweave CR Underlay CR Cognitive Radio 1 / 22 1/22 NAT IO NS & INFORMATIO
More informationIntroduction of USRP and Demos. by Dong Han & Rui Zhu
Introduction of USRP and Demos by Dong Han & Rui Zhu Introduction USRP(Universal Software Radio Peripheral ): A computer-hosted software radio, which is commonly used by research labs, universities. Motherboard
More informationTechnical Aspects of LTE Part I: OFDM
Technical Aspects of LTE Part I: OFDM By Mohammad Movahhedian, Ph.D., MIET, MIEEE m.movahhedian@mci.ir ITU regional workshop on Long-Term Evolution 9-11 Dec. 2013 Outline Motivation for LTE LTE Network
More informationLecture 4 October 16, Wireless Access. Graduate course in Communications Engineering. University of Rome La Sapienza. Rome, Italy
Lecture 4 October 16, 2017 Wireless Access Graduate course in Communications Engineering University of Rome La Sapienza Rome, Italy 2017-2018 Inter-system Interference Outline Inter-system interference
More informationWireless & Cellular Communications
Wireless & Cellular Communications Slides are adopted from Lecture notes by Professor A. Goldsmith, Stanford University. Instructor presentation materials for the book: Wireless Communications, 2nd Edition,
More informationBackground: Cellular network technology
Background: Cellular network technology Overview 1G: Analog voice (no global standard ) 2G: Digital voice (again GSM vs. CDMA) 3G: Digital voice and data Again... UMTS (WCDMA) vs. CDMA2000 (both CDMA-based)
More informationBaseline Proposal for EPoC PHY Layer IEEE 802.3bn EPoC September 2012 AVI KLIGER, BROADCOM LEO MONTREUIL, BROADCOM ED BOYD, BROADCOM
Baseline Proposal for EPoC PHY Layer IEEE 802.3bn EPoC September 2012 AVI KLIGER, BROADCOM LEO MONTREUIL, BROADCOM ED BOYD, BROADCOM NOTE This presentation includes results based on an inhouse Channel
More information[Kavyalakshmi*, 4.(12): December, 2015] ISSN: (I2OR), Publication Impact Factor: 3.785
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY A CROSSLAYER PROTOCOL DESIGN APPROACH BETWEEN PHY AND MAC LAYER FOR COGNITIVE RADIO NETWORKS Kavyalakshmi.K*, Mrs.Padmavathi.G
More informationIEEE Project m as an IMT-Advanced Technology
2008-09-25 IEEE L802.16-08/057r2 IEEE Project 802.16m as an IMT-Advanced Technology IEEE 802.16 Working Group on Broadband Wireless Access 1 IEEE 802.16 A Working Group: The IEEE 802.16 Working Group on
More informationWiMAX/ Wireless WAN Case Study: WiMAX/ W.wan.6. IEEE 802 suite. IEEE802 suite. IEEE 802 suite WiMAX/802.16
W.wan.6-2 Wireless WAN Case Study: WiMAX/802.16 W.wan.6 WiMAX/802.16 IEEE 802 suite WiMAX/802.16 PHY Dr.M.Y.Wu@CSE Shanghai Jiaotong University Shanghai, China Dr.W.Shu@ECE University of New Mexico Albuquerque,
More informationSmart-Radio-Technology-Enabled Opportunistic Spectrum Utilization
Smart-Radio-Technology-Enabled Opportunistic Spectrum Utilization Xin Liu Computer Science Dept. University of California, Davis Spectrum, Spectrum Spectrum is expensive and heavily regulated 3G spectrum
More informationWhat is a Communications System?
Introduction to Communication Systems: An Overview James Flynn Sharlene Katz What is a Communications System? A communications system transfers an information bearing signal from a source to one or more
More informationWireless WAN Case Study: WiMAX/ W.wan.6
Wireless WAN Case Study: WiMAX/802.16 W.wan.6 Dr.M.Y.Wu@CSE Shanghai Jiaotong University Shanghai, China Dr.W.Shu@ECE University of New Mexico Albuquerque, NM, USA W.wan.6-2 WiMAX/802.16 IEEE 802 suite
More informationFrequency Reuse How Do I Maximize the Value of My Spectrum?
Frequency Reuse How Do I Maximize the Value of My Spectrum? Eric Wilson VP Systems Management, Vyyo Broadband Wireless Forum, February 20, 2001 Spectrum Reuse Outline Definition / concept Alternatives
More informationIEEE c-00/40. IEEE Broadband Wireless Access Working Group <
Project Title Date Submitted Source(s) IEEE 802.16 Broadband Wireless Access Working Group Initial PHY Layer System Proposal for Sub 11 GHz BWA 2000-10-30 Anader Benyamin-Seeyar
More information802.16s SOFTWARE PLATFORM
General Software s 802.16s SOFTWARE PLATFORM Architecture Operation system Embedded Linux 1. MAC layer application running on ARM processor 2. PHY layer application running on DSP Application software
More information2012 LitePoint Corp LitePoint, A Teradyne Company. All rights reserved.
LTE TDD What to Test and Why 2012 LitePoint Corp. 2012 LitePoint, A Teradyne Company. All rights reserved. Agenda LTE Overview LTE Measurements Testing LTE TDD Where to Begin? Building a LTE TDD Verification
More informationCognitive 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 informationWhat s Behind 5G Wireless Communications?
What s Behind 5G Wireless Communications? Marc Barberis 2015 The MathWorks, Inc. 1 Agenda 5G goals and requirements Modeling and simulating key 5G technologies Release 15: Enhanced Mobile Broadband IoT
More informationLicense Exempt Spectrum and Advanced Technologies. Marianna Goldhammer Director Strategic Technologies
License Exempt Spectrum and Advanced Technologies Marianna Goldhammer Director Strategic Technologies Contents BWA Market trends Power & Spectral Ingredients for Successful BWA Deployments Are regulations
More informationLow Overhead Spectrum Allocation and Secondary Access in Cognitive Radio Networks
Low Overhead Spectrum Allocation and Secondary Access in Cognitive Radio Networks Yee Ming Chen Department of Industrial Engineering and Management Yuan Ze University, Taoyuan Taiwan, Republic of China
More informationOne Cell Reuse OFDM/TDMA using. broadband wireless access systems
One Cell Reuse OFDM/TDMA using subcarrier level adaptive modulation for broadband wireless access systems Seiichi Sampei Department of Information and Communications Technology, Osaka University Outlines
More informationIEEE Broadband Wireless Access Working Group < Initial PHY Layer System Proposal for Sub 11 GHz BWA
Project Title Date Submitted Source(s) Re: Abstract Purpose Notice Release Patent Policy and Procedures IEEE 802.16 Broadband Wireless Access Working Group Initial PHY Layer System
More informationPresentation Overview
Presentation Overview Overview of Cognitive Radio Interactive Decision Problem A Quick Review of Game Theory Designing Cognitive Radio Networks Examples of Networked Cognitive Radios Future Directions
More informationAdoption of this document as basis for broadband wireless access PHY
Project Title Date Submitted IEEE 802.16 Broadband Wireless Access Working Group Proposal on modulation methods for PHY of FWA 1999-10-29 Source Jay Bao and Partha De Mitsubishi Electric ITA 571 Central
More informationImplementation Issues in Spectrum Sensing for Cognitive Radios
Implementation Issues in Spectrum Sensing for Cognitive Radios Danijela Cabric, Shridhar Mubaraq Mishra, Robert W. Brodersen Berkeley Wireless Research Center, University of California, Berkeley Abstract-
More informationCHAPTER 1 INTRODUCTION
CHAPTER 1 INTRODUCTION The enduring growth of wireless digital communications, as well as the increasing number of wireless users, has raised the spectrum shortage in the last decade. With this growth,
More informationCharacteristics of broadband radio local area networks
Recommendation ITU-R M.1450-4 (04/2010) Characteristics of broadband radio local area networks M Series Mobile, radiodetermination, amateur and related satellite services ii Rec. ITU-R M.1450-4 Foreword
More informationDICE Telemetry Overview and Current Status
DICE Telemetry Overview and Current Status CubeSat Workshop, April 2012 Jacob Gunther Overview DICE telemetry overview Operations experience and timeline Narrowband interference mitigation Frequency domain
More informationBaseline Proposal for EPoC PHY Layer
Baseline Proposal for EPoC PHY Layer AVI KLIGER, BROADCOM LEO MONTREUIL, BROADCOM ED BOYD, BROADCOM NOTE This presentation includes results based on an in house Channel Models When an approved Task Force
More informationWireless systems. includes issues of
Wireless systems includes issues of hardware processors, storage, peripherals, networks,... representation of information, analog vs. digital, bits & bytes software applications, operating system organization
More informationCognitive Wireless Network : Computer Networking. Overview. Cognitive Wireless Networks
Cognitive Wireless Network 15-744: Computer Networking L-19 Cognitive Wireless Networks Optimize wireless networks based context information Assigned reading White spaces Online Estimation of Interference
More informationWiMAX Summit Testing Requirements for Successful WiMAX Deployments. Fanny Mlinarsky. 28-Feb-07
WiMAX Summit 2007 Testing Requirements for Successful WiMAX Deployments Fanny Mlinarsky 28-Feb-07 Municipal Multipath Environment www.octoscope.com 2 WiMAX IP-Based Architecture * * Commercial off-the-shelf
More informationREPORT ITU-R M.2024 SUMMARY OF SPECTRUM USAGE SURVEY RESULTS
Rep. ITU-R M.2024 1 REPORT ITU-R M.2024 SUMMARY OF SPECTRUM USAGE SURVEY RESULTS (2000) Rep. ITU-R M.2024 1 Introduction A number of administrations have indicated their current and planned spectrum usage
More informationTesting and Measurement of Cognitive Radio and Software Defined Radio Systems
Testing and Measurement of Cognitive Radio and Software Defined Radio Systems Hüseyin Arslan University of South Florida, Tampa, FL, USA E-mail:arslan@eng.usf.edu ABSTRACT This paper describes an overview
More informationSpectrum Sensing for Dynamic Spectrum Access of TV Bands (Invited Paper)
Spectrum Sensing for Dynamic Spectrum Access of TV Bands (Invited Paper) Carlos Cordeiro, Monisha Ghosh, Dave Cavalcanti, and Kiran Challapali Wireless Communication and Networking Department Philips Research
More informationEvaluating IEEE Broadband Wireless as a Communications. Activities. Award #2006-IJ-CX-K035
This project was supported by Grant No. 2006-IJ-CX-K035 awarded d by the National Institute t of Justice, Office of Justice Programs, US Department of Justice. Points of view in this document are those
More informationSpectrum sharing using Coexistence Frame and Networking solutions. Mariana Goldhamer Director Strategic Technologies Alvarion
Spectrum sharing using Coexistence Frame and Networking solutions Mariana Goldhamer Director Strategic Technologies Alvarion 1 Disclaimer This presentation includes personal views and does not necessary
More informationWireless Broadband Networks
Wireless Broadband Networks WLAN: Support of mobile devices, but low data rate for higher number of users What to do for a high number of users or even needed QoS support? Problem of the last mile Provide
More information500 Series AP and SM CAP and CSM Licensed, Reliable Wireless Connectivity
500 Series AP and SM CAP 35500 and CSM 35500 Licensed, Reliable Wireless Connectivity Reliable, Cost Effective Connectivity 3.5 GHz Licensed Band OFDM nlos and NLOS Connectivity High Downlink AND Uplink
More informationCOGNITIVE 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 informationInterleaved spread spectrum orthogonal frequency division multiplexing for system coexistence
University of Wollongong Research Online University of Wollongong Thesis Collection 1954-2016 University of Wollongong Thesis Collections 2008 Interleaved spread spectrum orthogonal frequency division
More informationAn OFDM Transmitter and Receiver using NI USRP with LabVIEW
An OFDM Transmitter and Receiver using NI USRP with LabVIEW Saba Firdose, Shilpa B, Sushma S Department of Electronics & Communication Engineering GSSS Institute of Engineering & Technology For Women Abstract-
More informationOFDM AS AN ACCESS TECHNIQUE FOR NEXT GENERATION NETWORK
OFDM AS AN ACCESS TECHNIQUE FOR NEXT GENERATION NETWORK Akshita Abrol Department of Electronics & Communication, GCET, Jammu, J&K, India ABSTRACT With the rapid growth of digital wireless communication
More informationOFDMA PHY for EPoC: a Baseline Proposal. Andrea Garavaglia and Christian Pietsch Qualcomm PAGE 1
OFDMA PHY for EPoC: a Baseline Proposal Andrea Garavaglia and Christian Pietsch Qualcomm PAGE 1 Supported by Jorge Salinger (Comcast) Rick Li (Cortina) Lup Ng (Cortina) PAGE 2 Outline OFDM: motivation
More informationProject: IEEE P Study Group for Wireless Personal Area Networks (WPANs(
Project: IEEE P802.15 Study Group for Wireless Personal Area Networks (WPANs( WPANs) Title: Alternatives for Lower Frequency Band Extension Date Submitted: July 12, 2004 Source: Andreas Wolf, Dr. Wolf
More informationRECOMMENDATION ITU-R BT.1832 * Digital video broadcast-return channel terrestrial (DVB-RCT) deployment scenarios and planning considerations
Rec. ITU-R BT.1832 1 RECOMMENDATION ITU-R BT.1832 * Digital video broadcast-return channel terrestrial (DVB-RCT) deployment scenarios and planning considerations (Question ITU-R 16/6) (2007) Scope This
More informationLecture 5 October 17, Wireless Access. Graduate course in Communications Engineering. University of Rome La Sapienza. Rome, Italy
Lecture 5 October 17, 2018 Wireless Access Graduate course in Communications Engineering University of Rome La Sapienza Rome, Italy 2018-2019 Cognitive radio and networks Outline What is Cognitive Radio
More informationCIS 632 / EEC 687 Mobile Computing
CIS 632 / EEC 687 Mobile Computing MC Platform #4 USRP & GNU Radio Chansu Yu 1 Tutorial at IEEE DySpan Conference, 2007 Understanding the Issues in SD Cognitive Radio Jeffrey H. Reed, Charles W. Bostian,
More informationExperimental Study of Spectrum Sensing Based on Distribution Analysis
Experimental Study of Spectrum Sensing Based on Distribution Analysis Mohamed Ghozzi, Bassem Zayen and Aawatif Hayar Mobile Communications Group, Institut Eurecom 2229 Route des Cretes, P.O. Box 193, 06904
More informationOverview. Cognitive Radio: Definitions. Cognitive Radio. Multidimensional Spectrum Awareness: Radio Space
Overview A Survey of Spectrum Sensing Algorithms for Cognitive Radio Applications Tevfik Yucek and Huseyin Arslan Cognitive Radio Multidimensional Spectrum Awareness Challenges Spectrum Sensing Methods
More informationITU Global Symposium for Regulators 2014 Manama, Bahrain, 2 5 June ITU activities related to Dynamic Spectrum Access
ITU Global Symposium for Regulators 2014 Manama, Bahrain, 2 5 June 2014 ITU activities related to Dynamic Spectrum Access 1 ITU and radiocommunications ITU provides a forum where 193 Member States, 700
More information70cm & Microwave Amateur TV Frequencies Jim Andrews, KH6HTV
AppNote10a-TVfreqs.doc (kh6htv, 10/31/2014) p. 1 of 5 Application Note AN-10a copyright - Nov. 2011 rev. - Oct. 2014 70cm & Microwave Amateur TV Frequencies Jim Andrews, KH6HTV www.kh6htv.com Licensed
More information5G: Opportunities and Challenges Kate C.-J. Lin Academia Sinica
5G: Opportunities and Challenges Kate C.-J. Lin Academia Sinica! 2015.05.29 Key Trend (2013-2025) Exponential traffic growth! Wireless traffic dominated by video multimedia! Expectation of ubiquitous broadband
More informationProduction Test and Spectral Monitoring
1 Production Test and Spectral Monitoring Stephen Plumb Key RF Building Blocks Symbol Name Types Function Amplifier (2 port) Power Amplifier Low Noise Amplifier Amplify signal before transmission (high
More information