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New Analytical Approach for Dual-hop AF Relay systems over Rayleigh Fading Channels  

Ko, Kyun-Byoung (Control and Instrumentation Engineering at Chungju National University)
Seo, Jeong-Tae (Control and Instrumentation Engineering at Chungju National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.8, 2011 , pp. 1-6 More about this Journal
Abstract
In this paper, another analytical approach for dual-hop amplify-and-forward(AF) relay systems is proposed over Rayleigh fading channels. Previous approaches derived the moment generating function(MGF) by using the cumulative distribution function(CDF) or probability density function(PDF) of the received signal-to-noise ratio(SNR) for source-relay-destination(S-R-D) link. Then, the average symbol error rate is expressed based on derived MGFs. In this paper, another new approach is proposed. It means that the MGF is directly derived by utilizing PDFs of both source-relay(S-R) and relay-destination(R-D) links. Additionary, the newly derived MGF is compared and analyzed with previous ones. Furthermore, simulation results are presented to validate the accuracy of proposed analytical expression. Based on this, it is confirmed that the proposed analytical approach can be a another solution for dual-hop AF relay systems.
Keywords
dual-hop AF relay; Rayleigh fading channels; CDF; PDF; MGF;
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Times Cited By KSCI : 2  (Citation Analysis)
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