Distributed Transmit Diversity in Relay Networks

Cemal Akçaba; Patrick Kuppinger; Helmut Bölcskei

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arXiv · 0705.3677

Distributed Transmit Diversity in Relay Networks

Cemal Akçaba·Patrick Kuppinger·Helmut Bölcskei

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Abstract

We analyze fading relay networks, where a single-antenna source-destination terminal pair communicates through a set of half-duplex single-antenna relays using a two-hop protocol with linear processing at the relay level. A family of relaying schemes is presented which achieves the entire optimal diversity-multiplexing (DM) tradeoff curve. As a byproduct of our analysis, it follows that delay diversity and phase-rolling at the relay level are optimal with respect to the entire DM-tradeoff curve, provided the delays and the modulation frequencies, respectively, are chosen appropriately.

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Cemal Akçaba, Patrick Kuppinger, Helmut Bölcskei. 2007-05-24. Distributed Transmit Diversity in Relay Networks. https://arxiv.org/abs/0705.3677

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