Performance and diversity analysis of decode-and-forward cooperative system over Nakagami-m fading channels

Authors:
Yongxu Hu;Kwok Hung Li;Kah Chan Teh
Affiliations:
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore;School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore;School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
Venue:
Wireless Communications & Mobile Computing
Year:
2011

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Abstract

In this paper, we derive the upper bound of bit-error rate (BER) performance and diversity gain for a decode-and-forward (DF) cooperative system. Either maximal-ratio combining (MRC) or cooperative MRC (C-MRC) is employed at the receiver in the presence of independent, non-identical Nakagami-m fading. Both analytical and simulation results show that C-MRC takes advantage of spatial diversity more efficiently and thus achieves the same or better performance and diversity order as compared to MRC. Copyright © 2009 John Wiley & Sons, Ltd.