An energy efficient hole repair node scheduling algorithm for WSN

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• 作者：Ying Xu ; ZengRi Zeng ; Ou Ding
• 关键词：Wireless sensor network ; Energy efficient ; Node scheduling
• 刊名：Wireless Networks
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：23
• 期：1
• 页码：103-116
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Communications Engineering, Networks; Computer Communication Networks; Electrical Engineering; IT in Business;
• 出版者：Springer US
• ISSN：1572-8196
• 卷排序：23

文摘

A sensor node in the wireless sensor network has limited energy and it normally cannot be replaced due to the random deployment, so how to prolong the network life time with limited energy while satisfying the coverage quality simultaneously becomes a crucial problem to solve for wireless sensor networks (WSN). In this work, we propose an energy efficient algorithm based on the sentinel scheme to reduce the sleeping node detection density by defining a new deep sleeping state for each sensor node. The average energy consumed by probing neighboring nodes is introduced as a factor to calculate the detection rate. In addition, after some theoretical analysis of the existence of coverage holes in WSN, a triangle coverage repair procedure is defined to repair coverage holes. Simulation results show that our proposed algorithm obtained better performance in terms of the coverage quality and network life time compared with some existing algorithms in the literature.