Energy-saving strategy by combining mobile and static sink schemes for wireless sensor networks

被引：0
|
作者：
Lin D. [1 ]
Wang Q. [1 ]
Liu J. [1 ]
机构：
[1] School of Computer Science and Technology, Xidian University, Xi'an
来源：
Wang, Quan (qwang@xidian.edu.cn) | 1600年 / Harbin Institute of Technology卷 / 48期
关键词：
Energy-efficient strategy; Mobile sink; Network lifespan; Sink' neighbor problem; Wireless sensor networks;
D O I：
10.11918/j.issn.0367-6234.2016.11.025
中图分类号：
学科分类号：
摘要：
An Energy-saving Strategy by Combining Mobile and Static (ESCMS) sink scheme is proposed focusing on the well-known issue “Sink's Neighbor Problem” existing in Wireless Sensor Networks. The static sink locates at the center of the monitor area, while the mobile sink does fast circle motion centering on the static one with a certain radius and sojourns in the fixed stations to receive packets from its adjacent sensor nodes. The nodes deployed at the edge of the monitor area transmit their sensed data to the mobile sink, while the ones lying in the center send their data to the static sink. Thus the energy consumption is cut down because the data is mostly transmitted via one-hop fashion. Meanwhile, with the help of the static sink, the transmission distance would be reduced compared with other strategies with only mobile sink adopted, thus the lifetime of network is extended and the throughput is increased. ESCMS is proved to be a higher energy-efficient scheme which increases the network lifetime more than sixfold based on theoretical analyses. Extensive simulation experiments are conducted and the comparisons are made. The results show that the lifetime of network is extended approximately to be 6 times as long as that of static sink strategy. Besides, it is prolonged by 50% when being compared with that of a mobile-sink-used-only scheme GMRE. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：162 / 168
页数：6
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