Outage Performance of Cooperative Relay Selection with Multiple Source and Destination Antennas over Dissimilar Nakagami-m Fading Channels

Wooju LEE  Dongweon YOON  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.8   pp.2669-2673
Publication Date: 2012/08/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.2669
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
cooperative diversity,  decode-and-forward,  relay selection,  outage probability,  diversity-multiplexing tradeoff,  Nakagami-m fading channels,  

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Summary: 
Cooperative relay selection, in which one of multiple relays is selected to retransmit the source signal to the destination, has received considerable attention in recent years, because it is a simple way to obtain cooperative diversity in wireless networks. The exact expression of outage probability for a decode-and-forward cooperative relay selection with multiple source and destination antennas over Rayleigh fading channels was recently derived in [9]. In this letter, we derive the exact expressions of outage probability and diversity-multiplexing tradeoff over independent and non-identically distributed Nakagami-m fading channels as an extension of [9]. We then analyze the effects of various parameters such as fading conditions, number of relays, and number of source and destination antennas on the outage probability.