Paper Info
Title
Space-Time Codes for Amplify-and-Forward (AF) Relay Channels: Performance and Code Design
Abstract
We consider the analysis and design of space-time trellis codes (STTCs) for a cooperative relay channel operating in amplify-and- forward (AF) mode assuming the source and destination nodes are equipped with multiple antennas but the relay node has single antenna. We derive a pairwise error probability (PEP) expression for the performance of STTCs in this type of channels. A simple upper- bound on PEP is then derived and is maximized to find the optimum STTCs. We show that the designed STTCs based on the derived criterion achieve full diversity in the AF relay channels especially at high signal-to-noise-ratios (SNRs). The maximum achievable diversity in relay channels with single-antenna relay is bounded by min(M,N) where M and N are respectively the number of antennas in source and destination nodes. Simulation results confirm that the proposed codes achieve the maximum diversity and also provide an appealing coding gain.
Year
DOI
Venue
2011
10.1109/GLOCOM.2011.6133840
Global Telecommunications Conference
Keywords
Field
DocType
amplify and forward communication,antenna arrays,probability,space-time codes,trellis codes,AF relay channels,PEP,SNR,STTC,amplify-and-forward relay channels,diversity,multiple antennas,pairwise error probability expression,signal-to-noise-ratios,single-antenna relay,space-time codes
Pairwise error probability,Relay channel,Coding gain,Convolutional code,Computer science,Signal-to-noise ratio,Real-time computing,Relay,Bit error rate,Encoding (memory)
Conference
ISSN
ISBN
Citations 
1930-529X E-ISBN : 978-1-4244-9267-1
978-1-4244-9267-1
0
PageRank 
References 
Authors
0.34
11
3
Name
Order
Citations
PageRank
Sajjad Beygi100.34
Hamid-Reza Bahrami2748.75
Tho Le-Ngoc32210237.14