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Published September 2009 | Published
Journal Article Open

Network Lifetime Maximization With Node Admission in Wireless Multimedia Sensor Networks

Abstract

Wireless multimedia sensor networks (WMSNs) are expected to support multimedia services such as delivery of video and audio streams. However, due to the relatively stringent quality-of-service (QoS) requirements of multimedia services (e.g., high transmission rates and timely delivery) and the limited wireless resources, it is possible that not all the potential sensor nodes can be admitted into the network. Thus, node admission is essential for WMSNs, which is the target of this paper. Specifically, we aim at the node admission and its interaction with power allocation and link scheduling. A cross-layer design is presented as a two-stage optimization problem, where at the first stage the number of admitted sensor nodes is maximized, and at the second stage the network lifetime is maximized. Interestingly, it is proved that the two-stage optimization problem can be converted to a one-stage optimization problem with a more compact and concise mathematical form. Numerical results demonstrate the effectiveness of the two-stage and one-stage optimization frameworks.

Additional Information

© Copyright 2009 IEEE. Manuscript received July 27, 2008; revised December 25, 2008. First published January 19, 2009; current version published August 14, 2009. This work was supported in part by the Alberta Ingenuity Fund, Alberta, Canada, and in part by the Natural Science and Engineering Research Council of Canada. The review of this paper was coordinated by Dr. E. Hossain. The authors would like to thank the Associate Editor Prof. E. Hossain and the anonymous reviewers for their constructive comments and suggestions, which helped to improve the quality of the manuscript. This paper was completed when K. T. Phan was a graduate student at the Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada.

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August 21, 2023
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