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On lower bounding the information capacity of amplify and forward wireless relay channels with channel estimation errors

Lamahewa, Tharaka; Sadeghi, Parastoo; Zhou, Xiangyun


We formulate a capacity lower bound for the dual-hop wireless relay channel which employs an amplify-and-forward (AF) protocol at the relay node. In AF relaying, even when the fading channel in both hops is complex Gaussian distributed, the overall dual-hop channel is non-Gaussian. We highlight that there is a fundamental difference between Gaussian and non-Gaussian channels in terms of deriving their capacity lower bound. Specifically for non-Gaussian channels, the channel estimation error...[Show more]

CollectionsANU Research Publications
Type: Journal article
Source: IEEE Transactions on Wireless Communications
DOI: 10.1109/TWC.2011.050511.102067


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