Dual Priority Scheduling Algorithm for Wireless Rechargeable Sensor Networks

The development of wireless charging technology makes it real to charge the wireless sensor node by a mobile charging vehicle(MCV), which greatly solves the problem of the lifetime of the wireless sensor network. In this paper, a two-priority on-demand scheduling algorithm is proposed(TWOP) to further improve the arrival rate of packets under the premise of ensuring the maximum charging time. For enhancing the lifetime of the network, we use a partial charging strategy and quantitatively analyze the specific information of the node to determine the maximum charging time of the node under ideal conditions. In order to make up for the reduced energy utilization efficiency caused by the partial charging strategy, and at the same time to improve the packet arrival rate, we propose a second priority algorithm to adjust the charging sequence and prove the theoretical optimality. At the same time, we have done a lot of simulation experiments to verify the effectiveness of TWOP.