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http://dx.doi.org/10.7471/ikeee.2011.15.1.064

Semi-Analytical BER Evaluation Based on Error-Events at Relay Nodes for Decoded-and-Forward Relay Systems  

Ko, Kyun-Byoung (Dept. of Control and Instrumentation Engineering, Chungju National University)
Seo, Jeong-Tae (Dept. of Control and Instrumentation Engineering, Chungju National University)
Publication Information
Journal of IKEEE / v.15, no.1, 2011 , pp. 64-69 More about this Journal
Abstract
In this paper, a semi-analytical approach is proposed for decode-and-forward(DF) relay systems over rayleigh fading channels. At first, we derive the general form of the averaged bit error rate(BER) based on error-events at relay nodes in which a selection scheme is not used. It is confirmed that an erroneous detection and transmission at relay nodes can cause the degradation of the received signal-to-noise ratio (SNR) and the averaged BER performance. Furthermore, the proposed method can be extended to selective-DF(SDF) relay schemes so that it is verified to be another general solution for DF relay systems. Also, proposed semi-analytical expressions have been verified by comparing with simulations.
Keywords
DF-Relay; Rayleigh fading channels; SDF; Averaged BER;
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Times Cited By KSCI : 1  (Citation Analysis)
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