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A Recharging Distance Analysis for Wireless Sensor Networks

Tsoumanis, Georgios and Oikonomou, Konstantinos and Aïssa, Sonia and Stavrakakis, Ioannis (2018) A Recharging Distance Analysis for Wireless Sensor Networks. [Journal Articles]

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Abstract

Efficient energy consumption is a challenging problem in wireless sensor networks especially close to the sink node, known as the energy hole problem. Various policies for recharging battery exhausted nodes have been proposed using special recharging vehicles. The focus in this paper is on a simple recharging policy that permits a recharging vehicle, stationed at the sink node, to move around and replenish any node’s exhausted battery when a certain recharging threshold is violated. The minimization of the recharging distance covered by the recharging vehicle is shown to be a facility location problem, and particularly a 1-median one. Simulation results investigate various aspects of the recharging policy – including an enhanced version – related to the recharging threshold and the level of the energy left in the network nodes’ batteries. In addition, it is shown that when the sink’s positioning is set to the solution of the particular facility location problem, then the recharging distance is minimized irrespectively of the recharging threshold.

Item Type: Journal Articles
Uncontrolled Keywords: Battery Recharging, Energy Consumption, Facility Location , Theory, Sink Positioning, Wireless Sensor Networks.
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Rebeca De Miguel
Date Deposited: 06 Apr 2018 11:30
Last Modified: 16 Jul 2018 21:00
URI: http://eprints.networks.imdea.org/id/eprint/1788

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