Virtual backbone construction in multihop ad hoc wireless networks: Research Articles

  • Authors:
  • Xiuzhen Cheng;Min Ding;David Hongwei Du;Xiaohua Jia

  • Affiliations:
  • Department of Computer Science, The George Washington University, Washington, DC, USA;Department of Computer Science, The George Washington University, Washington, DC, USA;Department of Computer Science, City University of Hong Kong, Hong Kong;Department of Computer Science, City University of Hong Kong, Hong Kong

  • Venue:
  • Wireless Communications & Mobile Computing - Special Issue on Ad Hoc Wireless Networks
  • Year:
  • 2006

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Abstract

Recent research points out that the flooding mechanism for topology update or route request in existing ad hoc routing protocols greatly degrades the network capacity. If we restrict the broadcast of control packets within a small subset of hosts in the network, the protocol overhead can be substantially reduced. This motivates our research of constructing a virtual backbone by computing a connected dominating set (CDS) in unit-disk graphs. In this paper, we propose two distributed algorithms to approximate a minimum CDS. These algorithms take linear time. Their performance is verified by a complete theoretical analysis. Copyright © 2006 John Wiley & Sons, Ltd.