MIMO Relaying: Distributed TAS/MRC in Nakagami-m Fading

Phee Lep Yeoh*, Maged Elkashlan, Iain B. Collings

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We develop a unified framework for the symbol error rate (SER) of distributed transmit antenna selection with receiver maximal-ratio combining (TAS/MRC) in multiple-input multiple-output (MIMO) relay networks. We focus on nonregenerative relaying with NS, NR, and ND antennas at the source, relay, and destination, respectively. We consider the general fading scenario of Nakagami-m fading with distinct m fading parameters in the source-to-relay and the relay-to-destination links. We present new analytical expressions for the statistics of the end-to-end signal-to-noise ratio (SNR). Specifically, we derive exact expressions and first order expansions for the cumulative distribution function and moment generating function of the end-to-end SNR. Based on these, we derive new closed-form expressions for the asymptotic SER under M-ary phase-shift keying (M-PSK) and M-ary quadrature amplitude modulation (M-QAM). Our asymptotic solutions accurately identify the diversity order and the array gain as two key design components of the network.

Original languageEnglish
Article number5963619
Pages (from-to)2678-2682
Number of pages5
JournalIEEE Transactions on Communications
Issue number10
Publication statusPublished - Oct 2011
Externally publishedYes


  • MIMO
  • Nakagami
  • relaying


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