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Joint rate control and routing for energy-constrained wireless sensor networks

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5 Author(s)
Meng Zheng ; Key Lab. of Ind. Inf. Comput. Eng., Chinese Acad. of Sci., Shenyang, China ; Haibin Yu ; Jianying Zheng ; Wei Liang
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In the following paper, we study the tradeoff between network utility and network lifetime for energy-constrained wireless sensor networks (WSNs). By introducing a parameter r, we combine these two objectives into a single weighted objective, and consider rate control and routing in this tradeoff framework simultaneously. First, using the dual decomposition method, we decompose the tradeoff model into two subproblems: congestion control/routing problem and network lifetime problem, both of which interact through the dual variables for energy dissipation constraints. Based on decomposition results, we derive a partially distributed algorithm where the network lifetime is a global information. Second, we propose a fully distributed algorithm by approximating the network lifetime maximization problem by the network utility maximization (NUM) framework. Our algorithms are more competent for practical implementation than those of literatures, since we have considered more practical factors in our network model.

Published in:

Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on

Date of Conference:

15-18 Dec. 2009