Achieving Optimal Diversity-Multiplexing Tradeoff for Full-Duplex MIMO Multihop Relay Networks

In this paper, we investigate the diversity-multiplexing tradeoff (DMT) of a multiple-input-multiple-output (MIMO) full-duplex single-user multihop relay channel, where a pair of source and destination communicates via multiple layers of relays. All communication terminals could be equipped with multiple antennas. The relays operate in a full-duplex mode. By incorporating time-domain linear transformation into amplify-and-forward (AF) based relaying, we propose an AF-based space-time relay scheme and show that the DMT upper bound of the channel can be achieved by properly designing space-time (ST) codes at the source.

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