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In this paper, the authors propose several novel fast converging mobility control protocols to achieve optimal deployment for streaming data flows in Wireless Sensor Networks (WSNs). The authors also identify a unique sink privacy issue in mobility control protocols and propose a new privacy-preserving scheme which can be integrated into mobility control protocols to protect the sink. The simulation and performance analysis show that the proposed privacy-preserving mobility control protocols, with the sink node well-protected, can reach near-optimal results in terms of convergence speed, energy consumption and the communication cost.
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