Paper Info
Title
Linear processing for dual-hop AF relay systems with interference: Outage probability analysis
Abstract
This paper investigates the impact of different linear processing techniques on the outage performance of dual-hop amplify-and-forward (AF) relaying systems with co-channel interference (CCI) at the multiple antenna relay. Specifically, three heuristic linear precoding schemes are proposed to combat the detrimental effect of CCI, namely, 1) Maximum ratio combining/maximal ratio transmission (MRC/MRT), 2) Zero-forcing/MRT (ZF/MRT), 3) Minimum mean-square error/MRT (MMSE/MRT). New exact outage expressions as well as simple high signal-to-noise ratio (SNR) outage approximations are derived for all three schemes. Our results demonstrate that while the MRC/MRT and the MMSE/MRT schemes achieve a full diversity order of N, the ZF/MRT scheme can only achieve a diversity order of N-M, where N is the number of relay antennas and M is the number of interferers. In addition, it is observed that the MMSE/MRT scheme always achieves the best outage performance. The ZF/MRT scheme outperforms the MRC/MRT scheme in the low SNR regime, and exhibits an inferior performance compared to the MRC/MRT scheme in the high SNR regime.
Year
DOI
Venue
2014
10.1109/ICC.2014.6884061
ICC
Keywords
Field
DocType
relay networks (telecommunication),multiple antenna relay,mmse-mrt scheme,exact outage expressions,diversity reception,cci,dual-hop amplify-and-forward relaying systems,linear codes,precoding,mrc-mrt scheme,dual-hop af relay systems,full diversity order,linear processing techniques,high signal-to-noise ratio,zf-mrt scheme,antenna arrays,cochannel interference,snr outage approximations,least mean squares methods,minimum mean-square error-mrt scheme,heuristic linear precoding schemes,amplify and forward communication,zero-forcing-mrt scheme,maximum ratio combining-maximal ratio transmission,probability,outage probability analysis
Heuristic,Telecommunications,Maximal-ratio combining,Linear process,Algorithm,Real-time computing,Interference (wave propagation),Hop (networking),Outage probability,Relay,Mathematics,Precoding
Conference
ISSN
Citations 
PageRank 
1550-3607
0
0.34
References 
Authors
12
5
Name
Order
Citations
PageRank
Guangxu Zhu134324.03
Caijun Zhong22007120.77
Himal A. Suraweera32639117.31
Z. Zhang42308198.54
Chau Yuen54493263.28