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Wireless Network Coding with Local Network Views: Coded Layer Scheduling by Vahid, Alireza; Aggarwal, Vaneet; Avestimehr, A. Salman; Sabharwal, Ashutosh is a scholarly article available to read on EtoBox.

What is Wireless Network Coding with Local Network Views: Coded Layer Scheduling about?

One of the fundamental challenges in the design of distributed wireless networks is the large dynamic range of network state. Since continuous tracking of global network state at all nodes is practically impossible, nodes can only acquire limited local views of the whole network to design their transmission strategies. In this paper, we study multi-layer wireless networks and assume that each node has only a limited knowledge, namely 1-local view, where each S-D pair has enough information to perform optimally when other pairs do not interfere, along with connectivity information for rest of the network. We investigate the information-theoretic limits of communication with such limited knowledge at the nodes. We develop a novel transmission strategy, namely Coded Layer Scheduling, that solely relies on 1-local view at the nodes and incorporates three different techniques: (1) per layer interference avoidance, (2) repetition coding to allow overhearing of the interference, and (3) network coding to allow interference neutralization. We show that our proposed scheme can provide a significant throughput gain compared with the conventional interference avoidance strategies. Furthermore

Author

Vahid, Alireza; Aggarwal, Vaneet; Avestimehr, A. Salman; Sabharwal, Ashutosh

Published

2011

Language

EN