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Cooperative Diversity Based on Interleavers and Its efficient Algorithm in Amplify-And-Forward Relay Networks  

Yan, Yier (Chonbuk National University)
Jo, Gye-Mun (Chonbuk National University)
Balakannan, S.P. (Chonbuk National University)
Lee, Moon-Ho (Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.46, no.6, 2009 , pp. 94-102 More about this Journal
Abstract
In [1], the authors have proposed a novel scheme to achieve full diversity and to combat the time delays from each relay node, but decode-and-forward (DF) model operation mode puts more processing burden on the relay. In this paper, we not only extend their model into amplify and forward (AF) model proposed in [2],[3], but also propose an efficient decoding algorithm, which is able to order the joint channel coefficients of overall channel consisting of source-relay link and relay-destination link and cancels the previous decoded symbols at the next decoding procedure. The simulation results show that this algorithm efficiently improves its performance achieving 2-3dB gain compared to [1] in high SNR region and also useful to DF achieving more than 3dB gain compared to an original algorithm.
Keywords
Interleaver; fading channels; relay networks; amplify-and-forward;
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