'Frequency diversity' presentation slideshows

EECS 380: Wireless Communications Weeks 3-4: Propagation

EECS 380: Wireless Communications Weeks 3-4: Propagation. Michael L. Honig Department of EECS Northwestern University. October 2009. Why Study Radio Propagation?. To determine coverage Must determine path loss Function of Frequency Distance

1.36k views • 94 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ MB-OFDM No Vote Res

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ MB-OFDM No Vote Responses ] Date Submitted: [ Nov 15, 2004 ]

1.16k views • 86 slides

Wireless Sensor System Design

587 views • 46 slides

Space Time Coding and Channel Estimation

Space Time Coding and Channel Estimation. By Orhan GAZI. Outline. Spatial Multiplexing Space Time Coding MIMO Channel Capacity MIMO channel estimation Our aim. Spatial Multiplexing. Data is divided into data streams Each stream is sent with an antenna Multiplexing gain is maximum

780 views • 45 slides

EE 6331, Spring, 2009 Advanced Telecommunication

EE 6331, Spring, 2009 Advanced Telecommunication. Zhu Han Department of Electrical and Computer Engineering Class 18 Apr. 2 rd , 2009. Outline. Review Eye Diagram Equalization Diversity Midterm 1 Highest 98 Lowest 47 Mean 79 Variance 6.3. Interpretation of Eye Diagram.

588 views • 44 slides

EE 6331, Spring, 2009 Advanced Telecommunication

EE 6331, Spring, 2009 Advanced Telecommunication. Zhu Han Department of Electrical and Computer Engineering Class 18 Apr. 2 rd , 2009. Outline. Review Eye Diagram Equalization Diversity Midterm 1 Highest 98 Lowest 47 Mean 79 Variance 6.3. Interpretation of Eye Diagram.

547 views • 44 slides

Selected Topics in DSP for Wireless

Selected Topics in DSP for Wireless. Jean-Paul M.G. Linnartz Nat.Lab., Philips Research. DSP aspects. Source Coding (Speech coding) Synchronization Detection and matched filtering Diversity and rake receivers Multi-user detection Equalization or subcarrier retrieval Error Correction

511 views • 42 slides

3. Diversity

3. Diversity. Main story. Communication over a flat fading channel has poor performance due to significant probability that channel is in a deep fade . Reliability is increased by providing more resolvable signal paths that fade independently.

606 views • 39 slides

Dr. Carl R. Nassar, Dr. Zhiqiang Wu, and David A. Wiegandt

431 views • 34 slides

EDGE-PRIORITIZED CHANNEL- AND TRAFFIC-AWARE UPLINK CARRIER AGGREGATION IN LTE-ADVANCED SYSTEMS

EDGE-PRIORITIZED CHANNEL- AND TRAFFIC-AWARE UPLINK CARRIER AGGREGATION IN LTE-ADVANCED SYSTEMS. AUTHORS R. SIVARAJ, A. PANDE, K. ZENG, K. GOVINDAN, P. MOHAPATRA . PRESENTER R. SIVARAJ, Ph.D student in CS, UC DAVIS, CA, USA Email: rsivaraj AT ucdavis DOT edu

400 views • 29 slides

AquaNode: A Solution for Wireless Underwater Communication

AquaNode: A Solution for Wireless Underwater Communication. Ryan Kastner Department of Electrical and Computer Engineering University of California, Santa Barbara CREON & GLEON Workshop March 30, 2006. Lagoon. Fore reef. Monitoring in Moorea.

524 views • 26 slides

Multiuser Diversity in Delay-Limited Cellular Systems

311 views • 24 slides

High-Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP) Status

High-Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP) Status. Gerry Heymsfield NASA/Goddard Space Flight Center Lihua Li, Matt Mclinden , NASA/Goddard Space Flight Center Michael Coon, M. Perrine, Amber Reynolds. Stephen Guimond U. MD/ESSIC Lin Tian Morgan State Univ.

371 views • 18 slides

Moving Toward an Operational Satellite Ocean Surface Vector Winds Capability with a Dual Frequency Scatterometer

Moving Toward an Operational Satellite Ocean Surface Vector Winds Capability with a Dual Frequency Scatterometer. Michael Brennan 1 , Paul Chang 2 , Zorana Jelenak 2 , Richard Knabb 3 , and Joseph Sienkiewicz 4 1 NOAA/NWS/NCEP National Hurricane Center, 2 NOAA/NESDIS/STAR

458 views • 16 slides

Diversity

Diversity. Diversity ? primary goal is to reduce depth & duration of signal fades in flat fading channel Flat fading ? B s < B c ? no ISI from multipath ! Spatial diversity ? multiple Rx antennas (usually) Use multiple Rx antennas in mobile or base station

362 views • 16 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

224 views • 15 slides

Photo: San Onofre Nuclear Generating Station

269 views • 14 slides

Satellite Radio: The Next Communications Revolution?

Satellite Radio: The Next Communications Revolution?. David Bultman. Challenges In Satellite Radio . There are three general problems with satellite reception: Blockages Foliage Multipath Fading. Blockages. The target of satellite radio is a mobile platform

233 views • 13 slides

GSM & CDMA

GSM & CDMA. A comparison. GSM. Time Division Multiple Access Based Technology 200kHz bandwidth per carrier Deployed in reuse pattern 3/9, 4/12, 7/21 Available operating frequency 900, 1800, 1900 MHz Using SIM Card . CDMA. Code Division Multiple Access Based Technology

342 views • 10 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ Single Baseband Structure to support Multi RF ] Date Submitted: [9 Sep. 2008] Source: [H.S.Lee, D. Y. Kim, C. S. Eun, S. M. Ryu] Company [ETRI, Chungnam Univ., Casuh]

181 views • 10 slides