Power efficient broadcasting and multicasting in wireless networks with Directional antennas

Jian Tang, Guoliang Xue, Weiyi Zhang

Research output: Contribution to journalConference Articlepeer-review

7 Scopus citations


Broadcasting and multicasting packets in a power efficient way is a critical task in wireless ad hoc networks. In a recent paper , Li et al. study the Minimum Energy Broadcast (MEB) routing problem in a wireless ad hoc network where every node has an omni-directional antenna and a fixed transmission power level. We extend their work to wireless networks with directional antennas in this paper. We formulate the Minimum Power Multicasting/Broadcasting using Directional Antennas (PMDA/PBDA) problems. For each problem, we present an approximation algorithm with worst-case approximation ratio O(log2 n), where n is the number of nodes in the network. We also present several effective heuristics to solve the problems, the Shortest Path Tree (SPT) heuristic, the Directed Minimum Spanning Tree (DMST) heuristic and a greedy heuristic. Simulation results are presented to show the performance of our algorithms.

Original languageEnglish (US)
Pages (from-to)1438-1442
Number of pages5
JournalIEEE International Conference on Communications
StatePublished - 2005
Externally publishedYes
Event2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of
Duration: May 16 2005May 20 2005


  • Directional antennas
  • Power efficient broadcasting and multicasting
  • Wireless ad hoc networks

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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