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Abstract: A multi-hop relay channel with multiple antenna terminals in a quasi-staticslow fading environment is considered. For both full-duplex and half-duplexrelays the fundamental diversity-multiplexing tradeoff DMT is analyzed. It isshown that, while decode-and-forward DF relaying achieves the optimal DMT inthe full-duplex relay scenario, the dynamic decode-and-forward DDF protocolis needed to achieve the optimal DMT if the relay is constrained to half-duplexoperation. For the latter case, static protocols are considered as well, andthe corresponding achievable DMT performance is characterized.



Author: Deniz Gunduz, Andrea Goldsmith, H. Vincent Poor

Source: https://arxiv.org/



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