Energy-efficient and coverage-specific node scheduling for wireless sensor networks

Authors:
Fanzhi Meng;Huanzhao Wang;Guojian Wei;Zhiying Fan
Affiliations:
Xi'an Jiaotong University, Xi'an, China;Xi'an Jiaotong University, Xi'an, China;Xi'an Jiaotong University, Xi'an, China;Xi'an Jiaotong University, Xi'an, China
Venue:
Proceedings of the 13th ACM international conference on Modeling, analysis, and simulation of wireless and mobile systems
Year:
2010

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Abstract

This paper addresses the problem of maximizing sensor networks lifetime as well as maintaining sufficient sensing coverage. To solve the problem, the calculation model of redundancy degree of the sensors whose sensing ranges satisfy the normal distribution without location information is proposed, and the calculation model of minimum of working nodes which can provide the desired quality of coverage (QoC) is also proposed. Based on the models, an Energy-Efficient and Coverage-Specific Node Scheduling for Wireless Sensor Networks (ECNS), which realizes collaborative scheduling of distributed nodes, is designed to guarantee the desired QoC with the least number of nodes and balance the energy consumption of each node. Simulation results show that ECNS can provide the desired QoC as well as reduce the total energy consumption effectively. In addition, ECNS can also make the energy consumption of each node homogeneously with low control overhead.