The min-power multicast problems in wireless ad hoc networks: a parameterized view

  • Authors:
  • Weizhong Luo;Jianxin Wang;Qilong Feng;Jiong Guo

  • Affiliations:
  • School of Information Science and Engineering, Central South University, Changsha, P.R. China and Hunan Financial & Economic University, P.R. China;School of Information Science and Engineering, Central South University, Changsha, P.R. China;School of Information Science and Engineering, Central South University, Changsha, P.R. China;Universität des Saarlandes, Saarbrücken, Germany

  • Venue:
  • FAW-AAIM'11 Proceedings of the 5th joint international frontiers in algorithmics, and 7th international conference on Algorithmic aspects in information and management
  • Year:
  • 2011

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Abstract

Power assignment in wireless ad hoc networks can be seen as a family of problems in which the task is to find in a given power requirement network a minimum power communication subnetwork that satisfies a given connectivity constraint. These problems have been extensively studied from the viewpoint of approximation, heuristic, linear programming, etc. In this paper, we add a new facet by initiating a systematic parameterized complexity study of three types of power assignment problems related to multicast: Min-power Single-source h- Multicast, Min-power Strongly Connected h-Multicast and Min-power Multi-source h-Multicast. We investigate their parameterized complexities with respect to the number of terminals and the number of senders. We show that Min-power Single-source h-Multicast is fixed-parameter tractable with respect to the number of terminals and achieve several parameterized hardness results.