Return to search

Performance Analysis of AF Cooperative Communications with Imperfect Channel Information

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.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0628111-173924
Date28 June 2011
CreatorsLi, Heng-Kuan
ContributorsYung-Hsiang Han, Tsang-Yi Wang, Chao-Kai Wen, Chen-Wan Tsung
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageEnglish
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628111-173924
Rightswithheld, Copyright information available at source archive

Page generated in 0.0012 seconds