Title page for etd-0628111-173924


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URN etd-0628111-173924
Author Heng-Kuan Li
Author's Email Address irvinglee1212@hotmail.com
Statistics This thesis had been viewed 5356 times. Download 1288 times.
Department Communications Engineering
Year 2010
Semester 2
Degree Master
Type of Document
Language English
Title Performance Analysis of AF Cooperative Communications with Imperfect Channel Information
Date of Defense 2011-06-03
Page Count 40
Keyword
  • amplify-and-forward
  • cooperative communications
  • channel estimation error
  • cooperation diversity
  • LMMSE estimator
  • Abstract Cooperative communications have received much attention recently, due to its ability to attain cooperation diversity. But when two nodes communicate via relays, it is difficult to get the perfect
    channel information, so relays must estimate their forward channel and backward channel
    in order to amplify the data to the destination. We investigate the effect of channel estimation
    error, and design the LMMSE estimator to estimate the channels, and also we consider the
    multi-relays to assist the whole system for training and data transmission. We propose the
    SNR gap ratio, outage probability, and the BER simulations for the analysis. Simulation shows
    that when using multi-relays, it can mitigate the effect of channel estimation errors in all of
    the amplify-and-forward (AF) scenarios.
    Advisory Committee
  • Yung-Hsiang Han - chair
  • Chen-Wan Tsung - co-chair
  • Chao-Kai Wen - co-chair
  • Tsang-Yi Wang - advisor
  • Files
  • etd-0628111-173924.pdf
  • indicate accessible in a year
    Date of Submission 2011-06-28

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