Title :
Performance analysis in AF/DF relay networks with beamforming
Author :
Hyunjun Kim;Cihan Tepedelenlio?lu
Author_Institution :
School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, 85287-5706, USA
Abstract :
Beamforming (BF) performance is analyzed in amplify/decode and forward (AF/DF) fixed relay networks with a Rayleigh fading channel. Novel lower-bounds are presented for AF/DF relaying schemes such as selection relaying and relaying with known/unknown channel information of the relay link at the source and destination. We show that lower-bounds are achievable at the expense of a rate penalty. The optimal signal-to-noise ratio (SNR) threshold is analyzed for selection relaying. High SNR performance analysis is also done for AF relay networks. Finally, we show performance comparisons among strong-path BF and optimized BF with a corresponding lower-bound.
Keywords :
"Performance analysis","Relays","Array signal processing","MIMO","Diversity reception","Decoding","Power system reliability","Bit error rate","Computer networks","Power engineering and energy"
Conference_Titel :
Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on
Print_ISBN :
978-1-4244-5825-7
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2009.5469885
