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arXiv · 1105.2422

Joint Network and LDPC Coding for Bi-directional Relaying

Xiaofu Wu·Weijun Zeng·Chunming Zhao·Xiaohu You
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Abstract

In this paper, we consider joint network and LDPC coding for practically implementing the denosie-and-forward protocol over bi-directional relaying. the closed-form expressions for computing the log-likelihood ratios of the network-coded codewords have been derived for both real and complex multiple-access channels. It is revealed that the equivalent channel observed at the relay is an asymmetrical channel, where the channel input is the XOR form of the two source nodes.

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Xiaofu Wu, Weijun Zeng, Chunming Zhao, Xiaohu You. 2011-05-12. Joint Network and LDPC Coding for Bi-directional Relaying. https://arxiv.org/abs/1105.2422

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