Superposition-Coded Concurrent Decode-and-Forward Relaying

Chao Wang, Yijia Fan, Ioannis Krikidis, John S. Thompson, H. Vincent Poor

In this paper, a superposition-coded concurrent decode-and-forward (DF) relaying protocol is presented. A specific scenario, where the inter-relay channel is sufficiently strong, is considered. Assuming perfect source-relay transmissions, the proposed scheme further improves the diversity performance of previously proposed repetition-coded concurrent DF relaying, in which the advantage of the inter-relay interference is not fully extracted.

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