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Distributed communication-aware coverage control by mobile sensor networks. (English) Zbl 1329.93101
Summary: The purpose of this paper is to propose a distributed control scheme to maximize area coverage by a mobile robot network while ensuring reliable communication between the members of the team. The information that is generated at the sensors depends on the sensing capabilities of the sensors as well as on the frequency at which events occur in their vicinity, captured by appropriate probability density functions. This information is then routed to a fixed set of access points via a multi-hop network whose links model the probability that information packets are correctly decoded at their intended destinations. The proposed distributed control scheme simultaneously optimizes coverage and routing of information by sequentially alternating between optimization of the two objectives. Specifically, optimization of the communication variables is performed periodically in the dual domain. Then, between communication rounds, the robots move to optimize coverage. Motion control is due to the solution of a distributed sequential concave program that handles efficiently the introduced nonlinearities in the mobility space. Our method is illustrated in computer simulations.

93C85 Automated systems (robots, etc.) in control theory
93A14 Decentralized systems
90B18 Communication networks in operations research
90B15 Stochastic network models in operations research
Full Text: DOI
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