Throughput optimizing localized link scheduling for multihop wireless networks under physical interference model

Yaqin Zhou*, Xiang Yang Li, Min Liu, Xufei Mao, Shaojie Tang, Zhongcheng Li

*Corresponding author for this work

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We study throughput-optimum localized link scheduling in wireless networks. The majority of results on link scheduling assume binary interference models that simplify interference constraints in actual wireless communication. While the physical interference model reflects the physical reality more precisely, the problem becomes notoriously harder under the physical interference model. There have been just a few existing results on link scheduling under the physical interference model, and even fewer on more practical distributed or localized scheduling. In this paper, we tackle the challenges of localized link scheduling posed by the complex physical interference constraints. By integrating the partition and shifting strategies into the pick-and-compare scheme, we present a class of localized scheduling algorithms with provable throughput guarantee subject to physical interference constraints. The algorithm in the oblivious power setting is the first localized algorithm that achieves at least a constant fraction of the optimal capacity region subject to physical interference constraints. The algorithm in the uniform power setting is the first localized algorithm with a logarithmic approximation ratio to the optimal solution. Our extensive simulation results demonstrate performance efficiency of our algorithms.

Original languageEnglish
Article number6583158
Pages (from-to)2708-2720
Number of pages13
JournalIEEE Transactions on Parallel and Distributed Systems
Volume25
Issue number10
DOIs
Publication statusPublished - 1 Oct 2014
Externally publishedYes

Keywords

  • capacity region
  • Localized link scheduling
  • maximum weighted independent set of links (MWISL)
  • physical interference model

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