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Performance of Cooperative Diversity Using Equal Gain Combining (EGC) over Nakagami-m Fading Channels

Lookup NU author(s): Dr Salama Ikki, Mariam Ahmed

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Abstract

Cooperative diversity is a promising technology for future wireless networks. In this paper, we derive exact closed-form expressions for the average bit error rate (BER) and outage probability (Pout) for differential equal gain combining (EGC) in cooperative diversity networks. The considered network uses amplify-and-forward relaying over independent non-identical Nakagami-m fading channels. The performance metrics (BER and Pout) are derived using the moment generating function (MGF) method. Furthermore, we found (in terms of MGF) the SNR moments, the average signal-to-noise ratio (SNR) and amount of fading. Numerical results show that the differential EGC can benefit from the path-loss reduction and outperform the traditional multiple-input single output (MISO) system. Also, numerical results show that the performance of the differential EGC is comparable to the maximum ratio combining (MRC) performance.


Publication metadata

Author(s): Ikki S, Ahmed M

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Wireless Communications

Year: 2009

Volume: 8

Issue: 2

Pages: 557-562

ISSN (print): 1536-1276

ISSN (electronic): 1558-2248

Publisher: IEEE

URL: http://dx.doi.org/10.1109/TWC.2009.070966

DOI: 10.1109/TWC.2009.070966


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