Energy-Efficient connected coverage of discrete targets in wireless sensor networks

Authors:
Mingming Lu;Jie Wu;Mihaela Cardei;Minglu Li
Affiliations:
Department of Computer Science and Engineering, Florida Atlantic University;Department of Computer Science and Engineering, Florida Atlantic University;Department of Computer Science and Engineering, Florida Atlantic University;Department of Computer Science and Engineering, Shanghai Jiao Tong University, China
Venue:
ICCNMC'05 Proceedings of the Third international conference on Networking and Mobile Computing
Year:
2005

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Abstract

A major concern in wireless sensor networks is to maximize network lifetime (in terms of rounds) while maintaining a high quality of services (QoS) at each round such as target coverage and network connectivity. Due to the power scarcity of sensors, a mechanism that can efficiently utilize energy has a great impact on extending network lifetime. Most existing works concentrate on scheduling sensors between sleep and active modes to maximize network lifetime while maintaining target/area coverage and network connectivity. This paper generalizes the sleep/active mode by adjusting sensing range to maximize total number of rounds and presents a distributed heuristic to address this problem.