Abstract
The discrete alphabet and memoryless relay channel (RC) with side information (SI) and its extension to the continuous alphabet Gaussian version with uncorrelated noises have been studied by Zaidi et al. Zhang et al. have studied a Gaussian RC with correlated noises and uninformed relay. Aggarwal et al. have analysed a coverage region for a RC without any SI and with uncorrelated noises. In this study, the authors have investigated the impact of SI on the coverage region as an important wireless performance factor for a wireless RC, and also derived the capacity upper and lower bounds for such a channel with SI and correlated noises. The results of this research include previous studies as special cases, and that under special circumstances, noise correlation can tighten the upper bound, and furthermore, SI enlarges the coverage region as expected intuitively. Mathematical derivations and numerical results are obtained to support the claims.
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