On constructing k-connected k-dominating set in wireless ad hoc and sensor networks

  • Fei Daia, Jie Wub
  • Published 2005

Abstract

An important problem in wireless ad hoc and sensor networks is to select a few nodes to form a virtual backbone that supports routing and other tasks such as area monitoring. Previous work in this area has focused on selecting a small virtual backbone for high efficiency. In this paper, we propose the construction of a k-connected k-dominating set (k-CDS) as a backbone to balance efficiency and fault tolerance. Four localized k-CDS construction protocols are proposed. The first protocol randomly selects virtual backbone nodes with a given probability pk , where pk depends on the value of k and network condition, such as network size and node density. The second one maintains a fixed backbone node degree of Bk , where Bk also depends on the network condition. The third protocol is a deterministic approach. It extends Wu and Dai’s coverage condition, which is originally designed for 1-CDS construction, to ensure the formation of a k-CDS. The last protocol is a hybrid of probabilistic and deterministic approaches. It provides a generic framework that can convert many existing CDS algorithms into k-CDS algorithms. These protocols are evaluated via a simulation study. © 2006 Elsevier Inc. All rights reserved.

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@inproceedings{Daia2005OnCK, title={On constructing k-connected k-dominating set in wireless ad hoc and sensor networks}, author={Fei Daia and Jie Wub}, year={2005} }