 Virtual movement of relay nodes for two-tier wireless sensor networks in tunnelsYu Bao, Liang Zhao, Yuan Hu, Chaogang Tang and Zhang Aijuan International Journal of Distributed Sensor Networks, 2017, vol. 13, issue 1, 1550147716684840 Abstract: In wireless sensor networks, node placement plays a significant role in terms of meeting design goals, such as cost effectiveness, connectivity, lifetime, and data latency. In tunnel environments, the energy consumption of sensor nodes and relay nodes is imbalanced because of the long and narrow shape of tunnels. In this article, to reduce the use of extra batteries and the number of forwarding times for a message, we propose a new approach to assist in the placement of relay nodes for two-tier wireless sensor networks in a tunnel environment. The approach proposed is based on the principle that working relay nodes can change approximately at the same time during network operation. It seems the relay nodes move to a new place when they are instead by dormant relay nodes. The approach provides a novel method that has been proved to find optimal places to deploy relay nodes in tunnel environment. Moreover, the approach balances the energy consumption of entire sensor nodes and prolongs the lifetime of entire networks significantly, which is shown in simulations. Keywords: Wireless sensor network; energy efficiency; node deployment; linear network; two-tier wireless sensor networks (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:13:y:2017:i:1:p:1550147716684840 Access Statistics for this article More articles in International Journal of Distributed Sensor Networks |
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