Power control and rate adaptation in multi-hop access networks-is it worth the effort?

  • Authors:
  • Carsten Burmeister;Ulrich Killat;Kilian Weniger

  • Affiliations:
  • Hamburg University of Technology, Communication Networks Department, Hamburg, Germany;Hamburg University of Technology, Communication Networks Department, Hamburg, Germany;Panasonic Research & Development Center Germany GmbH, Langen, Germany

  • Venue:
  • ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
  • Year:
  • 2007

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Abstract

We investigate the effect that power control and rate adaptation could have on the performance of multi-hop access networks. Therefore, we formulate an optimization problem to find optimum routes in a multi-hop access network. These optimum routes are found using global knowledge and thus have only limited practical relevance. However, they can well be used to calculate theoretical upper limits on the performance, which no routing algorithm could exceed. We calculate the performance limits with and without power control and rate adaptation and compare them with each other to judge whether these mechanisms are worth the effort to be deployed in wireless multi-hop access networks.