Distributed Transmit Diversity in Relay Networks
Information Theory
2016-08-14 v1 math.IT
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.
Cite
@article{arxiv.0705.3677,
title = {Distributed Transmit Diversity in Relay Networks},
author = {Cemal Akçaba and Patrick Kuppinger and Helmut Bölcskei},
journal= {arXiv preprint arXiv:0705.3677},
year = {2016}
}