Informational bottlenecks in two-unicast wireless networks with delayed CSIT

Abstract

We study the impact of delayed channel state information at the transmitters (CSIT) in two-unicast wireless networks with a layered topology and arbitrary connectivity. We introduce a technique to obtain outer bounds to the degrees-of-freedom (DoF) region through the new graph-theoretic notion of bottleneck nodes. Such nodes act as informational bottlenecks… (More)
DOI: 10.1109/ALLERTON.2015.7447152

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