Power Control for Commercial Satellites Using Radar Data
|
|
- Paula Richard
- 6 years ago
- Views:
Transcription
1 Power Control for Commercial Satellites Using Radar Data March 1-3, 2005 Russell Fang March 1-3, 2005 GSAW2005 rf-1
2 Purpose of Power Control Compensate for up- and down- link margin losses due to rain fades, particularly at Kaand/or Ku- band Minimize the required total aggregate satellite RF power (EIRP) to achieve the downlink availability for terminals in each beam, by dynamically distributing satellite EIRP in response to changes of weather condition in each beam Mitigate impairments caused by co-channel, cross-pol, and adjacent channel interference in a multi-beam Ka-/Ku- band system March 1-3, 2005 GSAW2005 rf-2
3 Downlink Power Control March 1-3, 2005 GSAW2005 rf-3
4 Downlink Power Control Concept Weather Radar Vendor Satellite NEXRAD Data Payload Parameter Adjustment Beacon & Traffic Signals Atmosphere NOCC Radar & Beacon Hybrid Algorithm ST Reports NOCC Messages ST Estimate Link Compare to Thresholds March 1-3, 2005 GSAW2005 rf-4
5 Signal Quality Downlink Channel Condition as a Function of Time Time T max Cell power increase Cell power decrease T min Channel is degrading Channel is improving : response time, a function of round trip propagation delay and processing time March 1-3, 2005 GSAW2005 rf-5
6 Hybrid Downlink Power Control Radar Vendors NOC DLPC Beacon Measurement ST n 1 ST ST Beacon Algorithm ST n 2 ST ST Beacon Algorithm Radar Data Radar Prediction Beacon Prediction Beacon Prediction Hybrid Algorithm No Data Clear Sky At Risk In No Data Old or Default Value Clear Sky At Risk In Radar Prediction Clear At Sky Risk Clear Sky Clear Sky Clear Sky Clear Sky At Risk At Risk At Risk At Risk In In In In In Payload Parameters Change ST n k ST ST Beacon Algorithm March 1-3, 2005 GSAW2005 rf-6
7 Radar Pixel Classification Rules WeatherState ( MG ) n : Clear Sky, At Risk,, dbz ( MG ) 15 dbz dbz n ( MG ) < 15 ( MG ) n n 20 < 20 March 1-3, 2005 GSAW2005 rf-7
8 Cell Weather Classification Rules If (ClearSky)% > (100% - (AreaThreshold)%) Clear Else If ()% > (AreaThreshold)% Else If ( ()% + (AtRisk)% ) > (AreaThreshold)% ) & ( ()% + (NoData)% < (AreaThreshold)% ) At Risk Otherwise Insufficient Data March 1-3, 2005 GSAW2005 rf-8
9 10 2 CONUS Statistics For a 15 dbz AtRisk Threshold, 20 dbz Threshold, and a 4% Spatial Threshold Confidence Level 50% 84.1% % of time that %CONUS Exceeds weather condition AtRis k 97.7% Ra in + AtRis k 99.87% % of CONUS Microce lls in We a the r Condition March 1-3, 2005 GSAW2005 rf-9
10 A Snapshot of Classified CONUS Weather Classified Weather at Each PSA Classified Weather at Each Cell E levation, deg Clear Sky At-Ris k Elevation, deg Clear Sky At-Ris k Azimuth, deg Azimuth, deg March 1-3, 2005 GSAW2005 rf-10
11 CONUS Weather Map & Desired Directivity Profile Weather Map Desired Directivity Profile 40 2 P S A Dire c tivity, db Elevation, deg Elevation, deg Azimuth, deg 4-2 Clear Sky At-Ris k Azimuth, deg March 1-3, 2005 GSAW2005 rf-11
12 Resultant Downlink EIRP Plots for a CONUS Shaped Beam 3-D View Top View EIRP, dbw Elevation, deg Elevation, deg Azimuth, deg Azimuth, deg March 1-3, 2005 GSAW2005 rf-12
13 Pencil Beam DLPC Simulation March 1-3, 2005 GSAW2005 rf-13
14 ST Simulation Model Interference, C / I Pointing Error SINR Measurement Error Beacon EIRP Variation SINR Computation SINR Measurement 0.5 db Gaseous Attenuation Short-Term Filter Downlink Fade Noise Floor Change SINR Linearizer Downlink Channel ST Long-Term Filter BDLPC Algorithm March 1-3, 2005 GSAW2005 rf-14 Delta SNR
15 Radar & Beacon DLPC Simulation Results (1) Year : 2002, Microcell : 263, Clusters : 1000, STs / Cluster : 1 March 1-3, 2005 GSAW2005 rf-15
16 Radar & Beacon DLPC Simulation Results (2) Year : 2002, Microcell : 263, Clusters : 1000, STs / Cluster : 1 March 1-3, 2005 GSAW2005 rf-16
17 Uplink Power Control March 1-3, 2005 GSAW2005 rf-17
18 ULPC - Objective Set ST s uplink transmit power above the noise and interference level to achieve the target PLR, without overpowering other (faded) STs, in an environment where The downlink (D/L) fade cannot perfectly predict the uplink (U/L) fade. The ST transmitter power varies with frequency and from unit to unit. The interference may vary much more rapidly than the round trip control loop delay. The satellite antenna C/N varies with time. The downlink beacon C/N varies with time. March 1-3, 2005 GSAW2005 rf-18
19 ULPC Simulation Environment (1) Antenna Patterns ULPC Status Packets U/L Transmit Statistics Collection Weather Model Traffic Generator ST Model March 1-3, 2005 GSAW2005 rf-19
20 ULPC Simulation Environment (2) All STs assumed to be operated in 512K mode only The following parameters are modeled ST transmit chain (PA, power setting error, pointing error, etc). Beacon variation, beacon measurement error and beacon noise floor variation Satellite received C/N variation and C/N measurement error ULPC status packet loss and delays and RS failures External interference Assumed traffic model Severe CONUS weather mix with clear-sky/mix/rain condition ratio of 50/25/25% March 1-3, 2005 GSAW2005 rf-20
21 Ring Definition of UL Cells March 1-3, 2005 GSAW2005 rf-21
22 Mean PLR versus U/L Fade PLR threshold = 10-5 March 1-3, 2005 GSAW2005 rf-22
23 Concluding Remarks The hybrid radar- and beacon- mode DLPC offers a reliable means to dynamically deliver satellite power to users in accordance to weather condition Radar- mode DLPC method can be readily applied to some bent-pipe satellites for oneway broadcast transmission Beacon- based closed- loop ULPC can be effectively used not only to compensate for UL fades, but also to mitigate the effects of CCI, XPI and ACI. This method can be readily adapted for VSAT applications as well. March 1-3, 2005 GSAW2005 rf-23
Ka Band and Broadband Satellite service
Ka Band and Broadband Satellite service Agenda Advantage & Necessity of Ka-band Attenuation Mitigation Techniques Current Broadband Satellite service ADVANTAGE & NECESSITY OF KA-BAND Why Ka Band Ka-band
More informationSatellite Communications
Satellite Communications Part IV-Lecture 3-Satellite Link Design Lecturer Madeeha Owais 1 Learning Objectives Solving calculations of Link Budget for various satellite systems 2 Design of Satellite Communication
More informationUNIVERSITY OF NAIROBI Radio Frequency Interference in Satellite Communications Systems
UNIVERSITY OF NAIROBI Radio Frequency Interference in Satellite Communications Systems Project No. 090 Mitei Ronald Kipkoech F17/2128/04 Supervisor: Dr.V.K Oduol Examiner: Dr. Gakuru OBJECTIVES To study
More informationSatellite Communications
Satellite Communications Part IV-Lecture 5-Satellite Link Design Lecturer Madeeha Owais 1 Learning Objectives Solving calculations of Link Budget for various satellite systems 2 Calculate uplink transmitter
More informationChapter 6 Solution to Problems
Chapter 6 Solution to Problems 1. You are designing an FDM/FM/FDMA analog link that will occupy 36 MHz of an INTELSAT VI transponder. The uplink and downlink center frequencies of the occupied band are
More informationSatellite Link Budget 6/10/5244-1
Satellite Link Budget 6/10/5244-1 Link Budgets This will provide an overview of the information that is required to perform a link budget and their impact on the Communication link Link Budget tool Has
More informationFrequency sharing between SRS and FSS (space-to-earth) systems in the GHz band
Recommendation ITU-R SA.2079-0 (08/2015) Frequency sharing between SRS and FSS (space-to-earth) systems in the 37.5-38 GHz band SA Series Space applications and meteorology ii Rec. ITU-R SA.2079-0 Foreword
More informationFuture of V Band in Satellite Communication
Future of V Band in Satellite Communication 1, 2 Chandan Choudhary, 3 Naveen Upadhyay 1 M.Tech Scholar, ECE Department, SGV University, Jaipur INDIA, Email: ashishtyagi9929@gmail.com 2 M.Tech Scholar,
More informationLink Budgets International Committee on GNSS Working Group A Torino, Italy 19 October 2010
Link Budgets International Committee on GNSS Working Group A Torino, Italy 19 October 2010 Dr. John Betz, United States Background Each GNSS signal is a potential source of interference to other GNSS signals
More informationFrequency Diversity Improvement Factor for Rain Fade Mitigation in Malaysia
2015 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE) 19-20 December 2015, BUET, Dhaka, Bangladesh Frequency Diversity Improvement Factor for Rain Fade Mitigation in
More informationExploiting Link Dynamics in LEO-to-Ground Communications
SSC09-V-1 Exploiting Link Dynamics in LEO-to-Ground Communications Joseph Palmer Los Alamos National Laboratory MS D440 P.O. Box 1663, Los Alamos, NM 87544; (505) 665-8657 jmp@lanl.gov Michael Caffrey
More informationGlossary of Satellite Terms
Glossary of Satellite Terms Satellite Terms A-D The following terms and definitions will help familiarize you with your Satellite solution. Adaptive Coding and Modulation (ACM) Technology which automatically
More informationRECOMMENDATION ITU-R S.524-6
Rec. ITU-R S.524-6 1 RECOMMENDATION ITU-R S.524-6 MAXIMUM PERMISSIBLE LEVELS OF OFF-AXIS e.i.r.p. DENSITY FROM EARTH STATIONS IN GSO NETWORKS OPERATING IN THE FIXED-SATELLITE SERVICE TRANSMITTING IN THE
More informationHTS (Terabit Capacity) Systems: Will Interference be a Limiting Factor? Scope
HTS (Terabit Capacity) Systems: Will Interference be a Limiting Factor? Ifiok Otung Scope Mobile and Satellite Communications at University of South Wales (USW) Key Strategies and Trade offs in HTS Cross
More informationGTBIT ECE Department Wireless Communication
Q-1 What is Simulcast Paging system? Ans-1 A Simulcast Paging system refers to a system where coverage is continuous over a geographic area serviced by more than one paging transmitter. In this type of
More informationAdapted from Dr. Joe Montana (George mason University) Dr. James
ink Budget Adapted from Dr. Joe Montana (George mason University) Dr. James W. apean course notes Dr. Jeremy Allnutt course notes And some internet resources + Tim Pratt book 1 ink Power Budget Tx EIRP
More informationOpportunistic Vehicular Networks by Satellite Links for Safety Applications
1 Opportunistic Vehicular Networks by Satellite Links for Safety Applications A.M. Vegni, C. Vegni, and T.D.C. Little Outline 2 o o o Opportunistic Networking as traditional connectivity in VANETs. Limitation
More informationPropagation Effects Handbook for Satellite Systems Design
ITT Industries Advanced Engineering & Sciences Ashburn, VA 20147 Phone: (703) 858-4061, Fax: (703) 858-4130 E-mail: louis.ippolito@itt.com Abstract This paper describes the latest edition of the NASA and
More informationDRONACHARYA GROUP OF INSTITUTIONS, GREATER NOIDA. SATELLITE COMMUNICATIONS (EEC 021) QUESTION BANK
DRONACHARYA GROUP OF INSTITUTIONS, GREATER NOIDA. SATELLITE COMMUNICATIONS (EEC 021) QUESTION BANK 1. Write the advantages and disadvantages of Satellite Communication. 2. Distinguish between active and
More informationSatellite Signals and Communications Principles. Dr. Ugur GUVEN Aerospace Engineer (P.hD)
Satellite Signals and Communications Principles Dr. Ugur GUVEN Aerospace Engineer (P.hD) Principle of Satellite Signals In essence, satellite signals are electromagnetic waves that travel from the satellite
More informationETSI TS V1.1.1 ( )
TS 102 188-5 V1.1.1 (2004-03) Technical Specification Satellite Earth Stations and Systems (SES); Regenerative Satellite Mesh - A (RSM-A) air interface; Physical layer specification; Part 5: Radio transmission
More informationSATELLITE LINK DESIGN
1 SATELLITE LINK DESIGN Networks and Communication Department Dr. Marwah Ahmed Outlines 2 Introduction Basic Transmission Theory System Noise Temperature and G/T Ratio Design of Downlinks Satellite Communication
More informationRECOMMENDATION ITU-R S.1557
Rec. ITU-R S.1557 1 RECOMMENDATION ITU-R S.1557 Operational requirements and characteristics of fixed-satellite service systems operating in the 50/40 GHz bands for use in sharing studies between the fixed-satellite
More informationProject = An Adventure : Wireless Networks. Lecture 4: More Physical Layer. What is an Antenna? Outline. Page 1
Project = An Adventure 18-759: Wireless Networks Checkpoint 2 Checkpoint 1 Lecture 4: More Physical Layer You are here Done! Peter Steenkiste Departments of Computer Science and Electrical and Computer
More informationTraining Programme. 1. LTE Planning Overview. 2. Modelling a LTE Network. 3. LTE Predictions. 4. Frequency and PCI Plan Analysis
ATOLL LTE FEATURES Training Programme 1. LTE Planning Overview 2. Modelling a LTE Network 3. LTE Predictions 4. Frequency and PCI Plan Analysis 5. Monte-Carlo Based Simulations Slide 2 of 82 1. LTE Planning
More informationRECOMMENDATION ITU-R SF.1719
Rec. ITU-R SF.1719 1 RECOMMENDATION ITU-R SF.1719 Sharing between point-to-point and point-to-multipoint fixed service and transmitting earth stations of GSO and non-gso FSS systems in the 27.5-29.5 GHz
More informationSpace Frequency Coordination Group
Space Frequency Coordination Group Report SFCG 38-1 POTENTIAL RFI TO EESS (ACTIVE) CLOUD PROFILE RADARS IN 94.0-94.1 GHZ FREQUENCY BAND FROM OTHER SERVICES Abstract This new SFCG report analyzes potential
More informationRECOMMENDATION ITU-R S.1512
Rec. ITU-R S.151 1 RECOMMENDATION ITU-R S.151 Measurement procedure for determining non-geostationary satellite orbit satellite equivalent isotropically radiated power and antenna discrimination The ITU
More informationRadar Reprinted from "Waves in Motion", McGourty and Rideout, RET 2005
Radar Reprinted from "Waves in Motion", McGourty and Rideout, RET 2005 What is Radar? RADAR (Radio Detection And Ranging) is a way to detect and study far off targets by transmitting a radio pulse in the
More informationITU/ITSO Workshop on Satellite Communications, AFRALTI, Nairobi Kenya, 8-12, August, Link Budget Analysis
ITU/ITSO Workshop on Satellite Communications, AFRALTI, Nairobi Kenya, 8-12, August, 2016 Link Budget Analysis Presenter: E. Kasule Musisi ITSO Consultant Email: kasule@datafundi.com Cell: +256 772 783
More informationUPLINK CO-CHANNEL AND CO-POLAR INTERFERENCE STATISTICAL DISTRIBUTION BETWEEN ADJACENT BROADBAND SATELLITE NETWORKS
Progress In Electromagnetics Research B, Vol. 10, 177 189, 2008 UPLINK CO-CHANNEL AND CO-POLAR INTERFERENCE STATISTICAL DISTRIBUTION BETWEEN ADJACENT BROADBAND SATELLITE NETWORKS A. D. Panagopoulos Mobile
More informationUnit 3 - Wireless Propagation and Cellular Concepts
X Courses» Introduction to Wireless and Cellular Communications Unit 3 - Wireless Propagation and Cellular Concepts Course outline How to access the portal Assignment 2. Overview of Cellular Evolution
More informationTechnical and operational characteristics for the fixed service using high altitude platform stations in the bands GHz and
Recommendation ITU-R F.1569 (05/2002) Technical and operational characteristics for the fixed service using high altitude platform stations in the bands 27.5-28.35 GHz and 31-31.3 GHz F Series Fixed service
More informationMuhammad Nazmul Islam, Senior Engineer Qualcomm Technologies, Inc. December 2015
Muhammad Nazmul Islam, Senior Engineer Qualcomm Technologies, Inc. December 2015 2015 Qualcomm Technologies, Inc. All rights reserved. 1 This presentation addresses potential use cases and views on characteristics
More informationRECOMMENDATION ITU-R S.1341*
Rec. ITU-R S.1341 1 RECOMMENDATION ITU-R S.1341* SHARING BETWEEN FEEDER LINKS FOR THE MOBILE-SATELLITE SERVICE AND THE AERONAUTICAL RADIONAVIGATION SERVICE IN THE SPACE-TO-EARTH DIRECTION IN THE BAND 15.4-15.7
More informationRECOMMENDATION ITU-R M.1181
Rec. ITU-R M.1181 1 RECOMMENDATION ITU-R M.1181 Rec. ITU-R M.1181 MINIMUM PERFORMANCE OBJECTIVES FOR NARROW-BAND DIGITAL CHANNELS USING GEOSTATIONARY SATELLITES TO SERVE TRANSPORTABLE AND VEHICULAR MOBILE
More informationWHAT PUSHED US INTO HTS SYSTEMS?
WHAT PUSHED US INTO HTS SYSTE? Dr Hector Fenech, Director of Future Satellite Systems 16 October 2017 TRADITIONAL SATELLITES (KU-BAND, C-BAND) Traditional payloads are segmented into transponders Transponders
More informationINTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATION ENGINEERING & TECHNOLOGY (IJECET)
INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATION ENGINEERING & TECHNOLOGY (IJECET) International Journal of Electronics and Communication Engineering & Technology (IJECET), ISSN ISSN 0976 6464(Print)
More informationApplication of Cognitive Radio Techniques to Satellite Communication
2012 IEEE International Symposium on Dynamic Spectrum Access Networks Application of Cognitive Radio Techniques to Satellite Communication Marko Höyhtyä 1, Jukka Kyröläinen 2, Ari Hulkkonen 2, Juha Ylitalo
More informationRecommendation ITU-R M (09/2015)
Recommendation ITU-R M.1906-1 (09/2015) Characteristics and protection criteria of receiving space stations and characteristics of transmitting earth stations in the radionavigation-satellite service (Earth-to-space)
More informationBSS system parameters between 17.3 GHz and 42.5 GHz and associated feeder links
Report ITU-R BO.271-1 (1/211) BSS system parameters between 17.3 GHz and 42.5 GHz and associated feeder links BO Series Satellite delivery ii Rep. ITU-R BO.271-1 Foreword The role of the Radiocommunication
More informationETSI TS V1.1.1 ( )
TS 102 188-6 V1.1.1 (2004-03) Technical Specification Satellite Earth Stations and Systems (SES); Regenerative Satellite Mesh - A (RSM-A) air interface; Physical layer specification; Part 6: Radio link
More informationInterference mitigation techniques for use by high altitude platform stations in the GHz and GHz bands
Recommendation ITU-R F.167 (2/3) Interference mitigation techniques for use by high altitude platform stations in the 27.-28.3 GHz and 31.-31.3 GHz bands F Series Fixed service ii Rec. ITU-R F.167 Foreword
More informationEfficient and Effective Usage of Ka-band in Asia-Pacific
Efficient and Effective Usage of Ka-band in Asia-Pacific WEERACHAI TIRANANMONGKOL AVP - Engineering Support THAICOM Public Company Limited, THAILAND ITU Region Seminar for RCC countries on Prospects for
More informationVerification Test Plan
(Note: the configuration data provided in this test plan is subject to change.) Antenna Verification Testing and scheduling Tel: +1 202 944 6796 Cell phone:+1 202 445 0730 Fax: +1 202 944 7000 Antenna
More informationHigh Speed Data Downlink for NSF Space Weather CubeSats
High Speed Data Downlink for NSF Space Weather CubeSats National Science Foundation Meeting Monday August 31, 2009 Charles Swenson Satellite Data Flow Onboard Instruments R collected Spacecraft Memory
More informationTechnical Annex. This criterion corresponds to the aggregate interference from a co-primary allocation for month.
RKF Engineering Solutions, LLC 1229 19 th St. NW, Washington, DC 20036 Phone 202.463.1567 Fax 202.463.0344 www.rkf-eng.com 1. Protection of In-band FSS Earth Stations Technical Annex 1.1 In-band Interference
More informationOutlines. Attenuation due to Atmospheric Gases Rain attenuation Depolarization Scintillations Effect. Introduction
PROPAGATION EFFECTS Outlines 2 Introduction Attenuation due to Atmospheric Gases Rain attenuation Depolarization Scintillations Effect 27-Nov-16 Networks and Communication Department Loss statistics encountered
More informationBROADBAND SATELLITE COMMUNICATIONS : PROPAGATION INFLUENCE & SYSTEM ADAPTIVITY
ASMS / EMPS Conference BROADBAND SATELLITE COMMUNICATIONS : PROPAGATION INFLUENCE & SYSTEM ADAPTIVITY Laurent CASTANET ESA / ESTEC, Noordwijk, The Netherlands, 20 September 2004 (ONERA/TéSA) CONTEXT RELATED
More informationProtection criteria for Cospas-Sarsat local user terminals in the band MHz
Recommendation ITU-R M.1731-2 (01/2012) Protection criteria for Cospas-Sarsat local user terminals in the band 1 544-1 545 MHz M Series Mobile, radiodetermination, amateur and related satellite services
More informationSATELLITE COMMUNICATIONS
SATELLITE COMMUNICATIONS Master of Management and Economics of Telecommunication Networks University of Athens - 006 The Link Budget by E. Rammos ESA Senior Advisor Satcom Courses University of Athens
More informationRECOMMENDATION ITU-R S * Maximum permissible level of off-axis e.i.r.p. density from very small aperture terminals (VSATs)
Rec. ITU-R S.728-1 1 RECOMMENDATION ITU-R S.728-1 * Maximum permissible level of off-axis e. density from very small aperture terminals (VSATs) (1992-1995) The ITU Radiocommunication Assembly, considering
More informationUsing the epmp Link Budget Tool
Using the epmp Link Budget Tool The epmp Series Link Budget Tool can offer a help to determine the expected performances in terms of distances of a epmp Series system operating in line-of-sight (LOS) propagation
More informationRECOMMENDATION ITU-R BO.1659
Rec. ITU-R BO.1659 1 RECOMMENDATION ITU-R BO.1659 Mitigation techniques for rain attenuation for broadcasting-satellite service systems in frequency bands between 17.3 GHz and 42.5 GHz (Questions ITU-R
More informationEarth Station Coordination
1 Overview Radio spectrum is a scarce resource that should be used as efficiently as possible. This can be achieved by re-using the spectrum many times - having many systems operate simultaneously on the
More informationCharacteristics and protection criteria for non-geostationary mobile-satellite service systems operating in the band
Recommendation ITU-R M.2046 (12/2013) Characteristics and protection criteria for non-geostationary mobile-satellite service systems operating in the band 399.9-400.05 MHz M Series Mobile, radiodetermination,
More informationEEG 816: Radiowave Propagation 2009
Student Matriculation No: Name: EEG 816: Radiowave Propagation 2009 Dr A Ogunsola This exam consists of 5 problems. The total number of pages is 5, including the cover page. You have 2.5 hours to solve
More informationUsing Variable Coding and Modulation to Increase Remote Sensing Downlink Capacity
Using Variable Coding and Modulation to Increase Remote Sensing Downlink Capacity Item Type text; Proceedings Authors Sinyard, David Publisher International Foundation for Telemetering Journal International
More informationOpen-Loop and Closed-Loop Uplink Power Control for LTE System
Open-Loop and Closed-Loop Uplink Power Control for LTE System by Huang Jing ID:5100309404 2013/06/22 Abstract-Uplink power control in Long Term Evolution consists of an open-loop scheme handled by the
More informationRECOMMENDATION ITU-R P Guide to the application of the propagation methods of Radiocommunication Study Group 3
Rec. ITU-R P.1144-2 1 RECOMMENDATION ITU-R P.1144-2 Guide to the application of the propagation methods of Radiocommunication Study Group 3 (1995-1999-2001) The ITU Radiocommunication Assembly, considering
More informationSMALL-DIAMETER EARTH TERMINAL TRANSMISSION ISSUES IN SUPPORT OF HIGH DATA RATE MOBILE SATELLITE SERVICE APPLICATIONS
SMALL-DIAMETER EARTH TERMINAL TRANSMISSION ISSUES IN SUPPORT OF HIGH DATA RATE MOBILE SATELLITE SERVICE APPLICATIONS Gary Comparetto Principal Engineer The MITRE Corporation (703) 983-6571 garycomp@mitre.org
More informationiq.link Key Features Comsearch A CommScope Company
2016 iq.link Key Features Comsearch A CommScope Company Table of Contents Near and Non-Line of Sight (nlos) Propagation Model:... 2 Radio State Analysis Graphics... 3 Comprehensive support for Adaptive
More informationFrancis J. Smith CTO Finesse Wireless Inc.
Impact of the Interference from Intermodulation Products on the Load Factor and Capacity of Cellular CDMA2000 and WCDMA Systems & Mitigation with Interference Suppression White Paper Francis J. Smith CTO
More informationDesign of Ka-Band Satellite Links in Indonesia
Design of Ka-Band Satellite Links in Indonesia Zulfajri Basri Hasanuddin International Science Index, Electronics and Communication Engineering waset.org/publication/9999249 Abstract There is an increasing
More informationELECTRONIC COMMUNICATIONS COMMITTEE
ELECTRONIC COMMUNICATIONS COMMITTEE ECC Decision of 12 November 2010 on sharing conditions in the 10.6-10.68 GHz band between the fixed service, mobile service and Earth exploration satellite service (passive)
More informationK.NARSING RAO(08R31A0425) DEPT OF ELECTRONICS & COMMUNICATION ENGINEERING (NOVH).
Smart Antenna K.NARSING RAO(08R31A0425) DEPT OF ELECTRONICS & COMMUNICATION ENGINEERING (NOVH). ABSTRACT:- One of the most rapidly developing areas of communications is Smart Antenna systems. This paper
More informationSatellite TVRO G/T calculations
Satellite TVRO G/T calculations From: http://aa.1asphost.com/tonyart/tonyt/applets/tvro/tvro.html Introduction In order to understand the G/T calculations, we must start with some basics. A good starting
More informationEfficient use of Satellite Resources through the use of Technical Developments and Regulations
Efficient use of Satellite Resources through the use of Technical Developments and Regulations ITU BR Workshop on the Efficient use of the Spectrum/Orbit resource Session II: Technical Options to Improve
More informationStudy of Factors which affect the Calculation of Co- Channel Interference in a Radio Link
International Journal of Electronic and Electrical Engineering. ISSN 0974-2174 Volume 8, Number 2 (2015), pp. 103-111 International Research Publication House http://www.irphouse.com Study of Factors which
More informationDynamic Frequency Hopping in Cellular Fixed Relay Networks
Dynamic Frequency Hopping in Cellular Fixed Relay Networks Omer Mubarek, Halim Yanikomeroglu Broadband Communications & Wireless Systems Centre Carleton University, Ottawa, Canada {mubarek, halim}@sce.carleton.ca
More informationThe first videoconference at Q/V Band: a new era of the satellite telecommunication history
COPUOS Scientific and Technical Subcommittee Fifty-second session The first videoconference at Q/V Band: a new era of the satellite telecommunication history Giuseppe Codispoti Italian Space Agency giuseppe.codispoti@asi.it
More informationSATELLIT COMMUNICATION
QUESTION BANK FOR SATELLITE COMMUNICATION UNIT I 1) Explain Kepler s laws. What are the fords that give rise to these laws? 2) Explain how a satellite is located with respect to earth. 3) Describe antenna
More informationCNES Position Regarding the Use of the X- X and Ka- Bands for EESS
Orlando March 25-27, 2003 CNES Position Regarding the Use of the X- X and Ka- Bands for EESS Frédéric Cornet Centre National d'etudes Spatiales (Frederic.Cornet@cnes.fr) Data Rates Requirements Future
More informationSATELLITE SUBSYSTEMS. Networks and Communication Department. Dr. Marwah Ahmed
1 SATELLITE SUBSYSTEMS Networks and Communication Department Dr. Marwah Ahmed Outlines Attitude and Orbit Control System (AOCS) Telemetry, Tracking, Command and Monitoring (TTC & M) Power System Communication
More informationGUIDELINES With elements of technical solution depending on the nature of radiocommunication service
GUIDELINES With elements of technical solution depending on the nature of radiocommunication service Technical solution within the application form for the issuance of an individual licence for the use
More informationWhite Paper 850 MHz & 900 MHz Co-Existence 900 MHz Receiver Blocking Problem
White Paper 850 MHz & 900 MHz Co-Existence 900 MHz Receiver Blocking Problem Table of Contents Introduction and Background 3 Assumptions 3 Receiver Blocking Problem 6 Conclusion 8 2 1. Introduction and
More informationDerivation of Power Flux Density Spectrum Usage Rights
DDR PFD SURs 1 DIGITAL DIVIDEND REVIEW Derivation of Power Flux Density Spectrum Usage Rights Transfinite Systems Ltd May 2008 DDR PFD SURs 2 Document History Produced by: John Pahl Transfinite Systems
More informationStatus of Telecommunication in W- band and possible applications: satellite broadband connection and networks of mobile phones
Status of Telecommunication in W- band and possible applications: satellite broadband connection and networks of mobile phones ARES & CTIF, Interdepartmental Center for TeleInfrastructure, University of
More informationImpact of Rain Attenuation for Satellite Links at C, Ku, K, Ka and mm Bands in Karachi
2017, TextRoad Publication ISSN: 2090-4274 Journal of Applied Environmental and Biological Sciences www.textroad.com Impact of Rain Attenuation for Satellite Links at C, Ku, K, Ka and mm Bands in Karachi
More informationWhite Paper. Linearity of GaN Based Solid State Power Amplifiers. By Cristi Damian, M.E.E. Advantech Wireless
White Paper Introduction Since the initial launch of GaN based Solid State Power Amplifiers by Advantech Wireless in early 2010, a lot of uncertainties and unknown issues have been clarified. We know today
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 informationRecommendation ITU-R SF.1843 (10/2007)
Recommendation ITU-R SF.1843 (10/2007) Methodology for determining the power level for high altitude platform stations ground to facilitate sharing with space station receivers in the bands 47.2-47.5 GHz
More informationCellular Network Planning and Optimization Part VI: WCDMA Basics. Jyri Hämäläinen, Communications and Networking Department, TKK, 24.1.
Cellular Network Planning and Optimization Part VI: WCDMA Basics Jyri Hämäläinen, Communications and Networking Department, TKK, 24.1.2008 Outline Network elements Physical layer Radio resource management
More informationSatellite Link Budget Calculator by Using Matlab/GUI
A Special Issue for 2nd International Conference of Cihan University-Erbil on Communication Engineering & Computer Sciences (CIC-COCOS 17), March 29-30, 2017 Satellite Link Budget Calculator by Using Matlab/GUI
More informationIZT C6000 RF Link Emulator
www.izt-labs.de IZT C6000 RF Link Emulator Bi-directional wideband solutions for up to 600 MHz bandwidth Simulation of complete satellite links including payload, uplink and downlink effects Simulation
More information2009 CubeSat Developer s Workshop San Luis Obispo, CA
Exploiting Link Dynamics in LEO-to-Ground Communications 2009 CubeSat Developer s Workshop San Luis Obispo, CA Michael Caffrey mpc@lanl.gov Joseph Palmer jmp@lanl.gov Los Alamos National Laboratory Paper
More informationInvestigation on Multiple Antenna Transmission Techniques in Evolved UTRA. OFDM-Based Radio Access in Downlink. Features of Evolved UTRA and UTRAN
Evolved UTRA and UTRAN Investigation on Multiple Antenna Transmission Techniques in Evolved UTRA Evolved UTRA (E-UTRA) and UTRAN represent long-term evolution (LTE) of technology to maintain continuous
More informationSmart Antenna ABSTRACT
Smart Antenna ABSTRACT One of the most rapidly developing areas of communications is Smart Antenna systems. This paper deals with the principle and working of smart antennas and the elegance of their applications
More informationDept. of ECE, K L University, Vaddeswaram, Guntur, Andhra Pradesh, India. 3. Consultant, NOTACHI EleKtronic Technologies, Andhra Pradesh, India 1
Volume 115 No. 7 17, 471-476 ISSN: 1311- (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ESTIMATION OF REFLECTIVITY AND CLOUD ATTENUATION IN TROPICAL REGIONS ijpam.eu Govardhani.Immadi
More informationDEVELOPMENT AND IMPLEMENTATION OF AN ATTENUATION CORRECTION ALGORITHM FOR CASA OFF THE GRID X-BAND RADAR
DEVELOPMENT AND IMPLEMENTATION OF AN ATTENUATION CORRECTION ALGORITHM FOR CASA OFF THE GRID X-BAND RADAR S98 NETWORK Keyla M. Mora 1, Leyda León 1, Sandra Cruz-Pol 1 University of Puerto Rico, Mayaguez
More informationGround Segment Technology Developments at ESA for Maritime Communications
Ground Segment Technology Developments at ESA for Maritime Communications Nicolas Girault Telecommunications and Integrated Applications ESA/ESTEC, The Netherlands 12 th BroadSky Workshop Salerno, Italy
More informationBasic Satellite Communication. Thaicom Customer and Network Services Department
Basic Satellite Communication Thaicom Customer and Network Services Department Satellite Communication System Control & Monitoring Station Satellite Space Segment Uplink Signals Downlink Signals Receive
More informationRADWIN SOLUTIONS. ENTRPRISE Broadband Wireless Access. Video Surveillance. Remote area BB Connectivity. Small Cell Backhaul
RADWIN SOLUTIONS ENTRPRISE Broadband Wireless Access Video Surveillance Remote area BB Connectivity Small Cell Backhaul Multipath/LOS/nLOS/NLOS 7/22/2015 2 Confidential Information Small Cell Deployment
More informationIntroduction to Radar Systems. The Radar Equation. MIT Lincoln Laboratory _P_1Y.ppt ODonnell
Introduction to Radar Systems The Radar Equation 361564_P_1Y.ppt Disclaimer of Endorsement and Liability The video courseware and accompanying viewgraphs presented on this server were prepared as an account
More informationREPORT ITU-R M
Rep. ITU-R M.2113-1 1 REPORT ITU-R M.2113-1 Sharing studies in the 2 500-2 690 band between IMT-2000 and fixed broadband wireless access systems including nomadic applications in the same geographical
More informationSharing Considerations Between Small Cells and Geostationary Satellite Networks in the Fixed-Satellite Service in the GHz Frequency Band
Sharing Considerations Between Small Cells and Geostationary Satellite Networks in the Fixed-Satellite Service in the 3.4-4.2 GHz Frequency Band Executive Summary The Satellite Industry Association ( SIA
More informationInterference Mitigation Using Uplink Power Control for Two-Tier Femtocell Networks
SUBMITTED TO IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 1 Interference Mitigation Using Uplink Power Control for Two-Tier Femtocell Networks Han-Shin Jo, Student Member, IEEE, Cheol Mun, Member, IEEE,
More informationTechniques to Optimize Usage of Satellite RF Power
Techniques to Optimize Usage of Satellite RF Power X.T. Vuong, VP and Chief Scientist Artel, LLC, Herndon, Virginia, xvuong@artelllc.com X.T. Vuong: Techniques to Optimize Usage of Satellite RF Power Page
More informationTen Things You Should Know About MIMO
Ten Things You Should Know About MIMO 4G World 2009 presented by: David L. Barner www/agilent.com/find/4gworld Copyright 2009 Agilent Technologies, Inc. The Full Agenda Intro System Operation 1: Cellular
More informationARTICLE 22. Space services 1
CHAPTER VI Provisions for services and stations RR22-1 ARTICLE 22 Space services 1 Section I Cessation of emissions 22.1 1 Space stations shall be fitted with devices to ensure immediate cessation of their
More information