Performance of AF Relay Networks with Multiple Relays and Multiple Antennas at Destination Using MRC Combining


Cooperative networking schemes in wireless networks provide cooperative diversity gain using differently located antennas that combat fadings induced by multipath propagation. In this paper, we present the optimal weight design for the destination in AF (Amplify and Forward) relay system, where the optimally designed MRC (Maximum Ratio Combining) is employed at the destination for SD link (direct link between source and destination) and RD links (indirect links between relays and destination). We investigate the BER performance of 1S→NR→LD system composed of one source, N relay nodes equipped with single antenna and one destination node equipped with L antennas, which also includes 1S→1RLD and 1SNR→1D. Simulation and numerical results are presented to verify our analysis.

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S. Haider, C. Li and Y. Iwanami, "Performance of AF Relay Networks with Multiple Relays and Multiple Antennas at Destination Using MRC Combining," International Journal of Communications, Network and System Sciences, Vol. 6 No. 5, 2013, pp. 197-203. doi: 10.4236/ijcns.2013.65023.

Conflicts of Interest

The authors declare no conflicts of interest.


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