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3D genetic algorithms for underwater sensor networks
by Jianmin Zou; Stephen Gundry; Janusz Kusyk; M. Ümit Uyar; Cem Safak Sahin
International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), Vol. 13, No. 1, 2013
Abstract: We introduce a genetic algorithm-based topology control mechanism, named 3D-GA, for Autonomous Underwater Vehicles (AUVs) operating in Underwater Sensor Networks (UWSNs). Using limited information collected from a node's local neighbours, 3D-GA runs autonomously at each AUV and provides guidance for its speed and direction towards a uniform spatial distribution while maintaining network connectivity. Imprecise and limited neighbourhood knowledge could potentially disrupt convergence towards a uniform and stable spatial coverage. We demonstrate that AUVs running our 3D-GA create a highly resilient network that can adapt to changing conditions such as the addition, loss or malfunction of number of AUVs. We also show that the ambiguity in detecting neighbours' exact locations does not prevent 3D-GA from achieving a uniform coverage but requiring AUVs travel longer distances to stabilise. Our simulation software results verify that 3D-GA is an effective tool for providing a robust solution for volumetric spatial control of AUVs in UWSNs.
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