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Multi-node Energy Policy for Wireless Sensor Networks

The application of Wireless Charging Vehicle (WCV) based wireless energy transfer technology to recharge the wireless sensor network nodes is attracted a great deal of attention recently. In this paper, a novel multi-node energy supplemental policy based on a circular cell for the wireless rechargeable sensor networks is proposed. In this policy, the WCV is used to charge the sensor node by traversal the center of the circular cells. For achieving the optimal WCV traversal path, a position distribution strategy of lower complexity for circular cells based on k-means algorithm to minimize the cluster quantity of circular cell and smallest enclosing circle algorithm to minimize the radius of each cell are given. Finally, the simulation results show that the position distribution strategy proposed in this paper can help to significantly reduce the WCV traversal time of each charge cycle.