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�������պ����ѧѧ�� 2009, Vol. 35 Issue (6) :753-757    DOI:
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Coverage control protocol using multi-intersection estimation for wireless sensor networks
Zhang Shuo, Liu Yuheng, Pu Juhua, Xiong Zhang*
School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� In order to prolong the lifetime of wireless sensor networks(WSNs) while maintaining the required sensing coverage quality, a distributed control protocol which determines the redundant nodes in a necessary and sufficient condition was proposed. The protocol using MIER(multi-intersection estimation rule)dynamically controls the nodes to be working or sleeping in WSNs. It was theoretically proved that the MIER is a necessary and sufficient off-duty eligibility rule, which guarantees full coverage to target area and no blind point incurred while maintaining the number of on-duty nodes to a minimum. Simulation results demonstrate that, MIER was greatly improved than CCP rule, due to the elimination of blind points caused by protocol. It is better to utilize MIER rule for coverage control protocol, since it is a necessary and sufficient condition to judge redundant nodes, and more accurate to determine node into sleeping or not than some other rules. Coverage control protocol using MIER can be more efficient to reduce the network-s overall energy consumption and prolong the system lifetime than Ottawa protocol.
Keywords�� wireless sensor networks   coverage control protocol   off-duty eligibility rule     
Received 2008-05-20;

������Ȼ��ѧ����������Ŀ(60803120); �������պ����ѧ�о�������ʵ������������Ŀ(2007.20)

About author: �� ˶(1983-),Ů,������,˶ʿ��,zhangshuo@cse.buaa.edu.cn.
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Zhang Shuo, Liu Yuheng, Pu Juhua, Xiong Zhang.Coverage control protocol using multi-intersection estimation for wireless sensor networks[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2009,V35(6): 753-757
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