On the coded packet relay network in the presence of Neighbors: Benefits of speaking in a crowded room

Hana Khamfroush, Peyman Pahlevani, Daniel E. Lucani, Martin Hundeboll, Frank H.P. Fitzek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

This paper studies the problem of optimal use of a relay for reducing the transmission time of data packets from a source to a destination using network coding. More importantly, we address an effect that is typically overlooked in previous studies: the presence of active transmitting nodes in the neighborhood of such devices, which is typical in wireless mesh networks. We show that in systems with a fair medium access control mechanism (MAC), the use of a relay in a crowded medium brings forth considerable and unforeseen improvements, including up to 3.5x gains in terms of throughput compared to using only the direct link in some of our examples, and a considerable extension of the operating region where using a relay is beneficial. The problem is formulated as a Markov Decision Process (MDP) and numerical results are provided comparing simple, close-to-optimal heuristics to the optimal scheme.

Original languageEnglish (US)
Title of host publication2014 IEEE International Conference on Communications, ICC 2014
PublisherIEEE Computer Society
Pages1928-1933
Number of pages6
ISBN (Print)9781479920037
DOIs
StatePublished - Jan 1 2014
Event2014 1st IEEE International Conference on Communications, ICC 2014 - Sydney, NSW, Australia
Duration: Jun 10 2014Jun 14 2014

Publication series

Name2014 IEEE International Conference on Communications, ICC 2014

Other

Other2014 1st IEEE International Conference on Communications, ICC 2014
CountryAustralia
CitySydney, NSW
Period6/10/146/14/14

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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    Khamfroush, H., Pahlevani, P., Lucani, D. E., Hundeboll, M., & Fitzek, F. H. P. (2014). On the coded packet relay network in the presence of Neighbors: Benefits of speaking in a crowded room. In 2014 IEEE International Conference on Communications, ICC 2014 (pp. 1928-1933). [6883605] (2014 IEEE International Conference on Communications, ICC 2014). IEEE Computer Society. https://doi.org/10.1109/ICC.2014.6883605