Performance Analysis of Multi-Antenna Relay Networks over Nakagami-m Fading Channel

Performance Analysis of Multi-Antenna Relay Networks over Nakagami-m Fading Channel

E. Soleimani-Nasab (K. N. Toosi University of Technology, Iran), A. Kalantari (K. N. Toosi University of Technology, Iran) and M. Ardebilipour (K. N. Toosi University of Technology, Iran)
DOI: 10.4018/978-1-4666-2208-1.ch011
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In this chapter, the authors present the performance of multi-antenna selective combining decode-and-forward (SC-DF) relay networks over independent and identically distributed (i.i.d) Nakagami-m fading channels. The outage probability, moment generation function, symbol error probability and average channel capacity are derived in closed-form using the Signal-to-Noise-Ratio (SNR) statistical characteristics. After that, the authors formulate the outage probability problem, optimize it with an approximated problem, and then solve it analytically. Finally, for comparison with analytical formulas, the authors perform some Monte-Carlo simulations.
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Literature Review

Because the relay selection schemes make an efficient use of time and frequency resources, several selective combining schemes have been introduced in recent years. In Blatses et al. (2006), the authors introduced an opportunistic relaying method, which a single relay based on the best end-to-end instantaneous SNR criterion is selected and then forwards the message to the destination. They derived analytical results at high SNRs and the outage probability wasn’t derived in closed-form. The authors in Beaulieu and Hu (2006) and Hu and Beaulieu (2007) analyzed an adaptive DF relay method, which only a number of relays were selected to send the messages to the destination. They proved that increasing the number of relays could not always decrease the outage probability.

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