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Basestation-Aided Coverage-Aware Energy-Efficient Routing Protocol for Wireless Sensor Networks

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3 Author(s)
Youngtae Noh ; Gwangju Inst. of Sci. & Technol., Gwangju ; Saewoom Lee ; Kiseon Kim

In wireless sensor networks, an energy-efficient routing protocol is a key design factor to prolong network lifetime. Recently, Optimal Coverage-Preserving Scheme (OCoPS) is proposed in [11] as an extension of the Low Energy Adaptive Clustering Hierarchy (LEACH) routing protocol with the coverage-preserving scheme which saves energy consumption through excluding redundant nodes of which sensing ranges are fully overlapped by their on-duty neighbors. In this paper, we propose a basestation-aided clustering-based routing protocol, namely, the Basestation-aided clustering routing protocol with the Coverage-Preserving Scheme (BCoPS). In BCoPS, the base station substitutes energy intensive tasks for deployed sensor nodes to prolong network lifetime. The performance of BCoPS is compared with the LEACH and OCoPS. The extensive simulation results show that BCoPS outperforms OCoPS by more than 20% on network lifetime and by more than 30% network lifetime until the coverage rate is higher than 80%.

Published in:

2008 IEEE Wireless Communications and Networking Conference

Date of Conference:

March 31 2008-April 3 2008