Utility-based channel assignment and topology control in wireless mesh networks

  • Authors:
  • Theodoras Dionysiou;Vasilios A. Siris;George Stamatakis

  • Affiliations:
  • Institute of Computer Science, Foundation for Research and Technology - Hellas (FORTH) P.O. Box 1385, GR 711 10 Heraklion, Crete, Greece;Institute of Computer Science, Foundation for Research and Technology - Hellas (FORTH) P.O. Box 1385, GR 711 10 Heraklion, Crete, Greece;Institute of Computer Science, Foundation for Research and Technology - Hellas (FORTH) P.O. Box 1385, GR 711 10 Heraklion, Crete, Greece

  • Venue:
  • WOWMOM '10 Proceedings of the 2010 IEEE International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)
  • Year:
  • 2010

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Abstract

We define a utility-based framework for joint channel assignment and topology control in multi-rate multi-radio wireless mesh networks, and present a greedy algorithm for solving the corresponding optimization problem. Key features of the proposed approach are the support for different target objectives, which are expressed as utility functions of the MAC layer throughput, and the efficient utilization of wired network gateways, while guaranteeing that for every mesh node there exists a path to a gateway. Investigations show the influence of different target objectives on the channel assignment and network topology, demonstrate the proposed approach's load balancing properties in mesh networks containing multiple gateways, show the effect of 802.11a adjacent channel interference on the channel assignment, and compare the performance of the proposed procedure with a rate-based channel assignment scheme.