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Study of New Approach of Performance Analysis for OADF Relay Systems over Rayleigh Fading channels  

Ko, Kyun-Byoung (충주대학교)
Seo, Jeong-Tae (충주대학교)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.12, no.3, 2011 , pp. 188-193 More about this Journal
Abstract
In this letter, we have derived another exact performance analysis for the OADF(opportunistic adaptive decode-and-forward) relay systems over Rayleigh fading channels. Based on error-events at relay nodes, the received instantaneous SNR(signal-to-noise ratio) is presented and its PDF(probability density function) is expressed as a more tractable form in which the number of summations and the length of each summation are specified. Then, exact average error rate, outage probability, and average channel capacity are obtained as general forms. Simulation results are finally presented to validate that the proposed analytical expressions can be a unified frame work covering all Rayleigh fading channel conditions. Furthermore, it is confirmed that OADF schemes can outperform the other schemes on the average error rate, outage probability, and average channel capacity.
Keywords
OADF relay systems; Rayleigh fading channels; SNR; PDF; average error rate; outage probability; average channel capacity;
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