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arXiv · 0808.2059

Diversity-Multiplexing Tradeoffs in MIMO Relay Channels

Deniz Gunduz·Andrea Goldsmith·H. Vincent Poor
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Abstract

A multi-hop relay channel with multiple antenna terminals in a quasi-static slow fading environment is considered. For both full-duplex and half-duplex relays the fundamental diversity-multiplexing tradeoff (DMT) is analyzed. It is shown that, while decode-and-forward (DF) relaying achieves the optimal DMT in the full-duplex relay scenario, the dynamic decode-and-forward (DDF) protocol is needed to achieve the optimal DMT if the relay is constrained to half-duplex operation. For the latter case, static protocols are considered as well, and the corresponding achievable DMT performance is characterized.

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Deniz Gunduz, Andrea Goldsmith, H. Vincent Poor. 2008-08-14. Diversity-Multiplexing Tradeoffs in MIMO Relay Channels. https://doi.org/10.1109/glocom.2008.ecp.194

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