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01-09-2019 | Issue 5/2019

Automatic Control and Computer Sciences 5/2019

Coverage-All Targets Algorithm for 3D Wireless Multimedia Sensor Networks Based on the Gravitational Search Algorithm

Journal:
Automatic Control and Computer Sciences > Issue 5/2019
Authors:
Yanjiao Wang, Ye Chen

Abstract

Aiming at the actual targets coverage scene of targets and sensors in the three-dimensional physical world, in order to use the minimal sensors to cover all the targets, a new coverage-all targets algorithm based on Gravitational Search algorithm (GSA-CT) is proposed. Firstly, from the practical point of view, a 3D coverage-all targets model of WMSNs which based on the spatial position relationship of sensors and targets is established in three-dimensional space. Secondly, in order to avoid randomness of the current order method to determine the minimal number of sensors to cover all the targets, a new fitness calculation method has been proposed. Thirdly, in order to improve solution accuracy, GSA is used as the optimization method of coverage-all targets method. Experimental results show that compared with the other 7 coverage methods for the 9 actual coverage scenarios, the number of sensors required for GSA-CT proposed in this paper is the least, and the method is very stable.

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