DocumentCode :
1345241
Title :
Cooperative transmission in wireless networks using incremental opportunistic relaying strategy
Author :
Chen, Jim S. ; Wang, J.X.
Author_Institution :
Sch. of Electron. Eng. & Optoelectron. Tech., Nanjing Univ. of Sci. & Technol., Nanjing, China
Volume :
3
Issue :
12
fYear :
2009
fDate :
12/1/2009 12:00:00 AM
Firstpage :
1948
Lastpage :
1957
Abstract :
In this study, the authors develop a novel cooperative transmission scheme - distributed opportunistic incremental decode and forward (DOIDF) that employs the incremental relaying (IR) strategy in opportunistic relaying (OR) protocols. By exploiting limited feedback from the destination, the proposed scheme starts the OR plan only when outage event happens in direct transmission (DT). The outage probability of DOIDF is derived in detail, and the results show that DOIDF can achieve the same space diversity order as multiple input single output (MISO) and single input multiple output (SIMO) systems, which is the upper limit of cooperative diversity. By analysing and comparing the approximate expression of outage probability of various protocols in high-signal-to-noise ratio (SNR) regime, the concept of system overhead factor (SOF), which reveals the effects of channel allocation in cooperative protocols on system performance, is proposed. Subsequent analysis and simulation results show that DOIDF outperforms corresponding OR schemes in outage probability, spectral efficiency and SNR gain over DT.
Keywords :
decoding; diversity reception; probability; protocols; radio networks; cooperative diversity; cooperative protocols; cooperative transmission scheme; distributed opportunistic incremental decode and forward; incremental opportunistic relaying strategy; multiple input single output system; opportunistic relaying protocols; outage probability; single input multiple output system; space diversity; spectral efficiency; system overhead factor; wireless networks;
fLanguage :
English
Journal_Title :
Communications, IET
Publisher :
iet
ISSN :
1751-8628
Type :
jour
DOI :
10.1049/iet-com.2009.0168
Filename :
5343511
Link To Document :
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