摘要
Energy replenishment of the sensors before their deadline is an integral part of wireless rechargeable sensor networks (WRSNs) to prolong their lifetime. Multi-node charging by a single wireless charging vehicle (WCV) has been proven to be effective in a small-scale WRSN. In a large-scale WRSN, most of the existing schemes deployed multiple WCVs to simultaneously fully charge the sensors using multi-node charging. The full charging of sensors may minimize the energy required for the travel of the WCVs. However, it may fail to charge many sensors before their deadline. In this paper, our objective is to minimize the number of dead sensors while minimizing the average dead duration of the sensors. To accomplish the objective, the to-be-charged sensors are first distributed among the WCVs by considering the energy requirement of the sensors and the WCVs’ movement. Second, a multi-node partial charging scheme has been proposed, where the sensors in the charging range of a WCV may be partially charged more than once until the sensors are fully charged. Simulation results show that the proposed scheme outperforms the existing schemes in terms of minimizing the number of dead sensors and yields a shorter average dead duration of a sensor, which proves the efficacy of our scheme.
摘要译文
Energy replenishment of the sensors before their deadline is an integral part of wireless rechargeable sensor networks (WRSNs) to prolong their lifetime. Multi-node charging by a single wireless charging vehicle (WCV) has been proven to be effective in a small-scale WRSN. In a large-scale WRSN, most of the existing schemes deployed multiple WCVs to simultaneously fully charge the sensors using multi-node charging. The full charging of sensors may minimize the energy required for the travel of the WCVs. However, it may fail to charge many sensors before their deadline. In this paper, our objective is to minimize the number of dead sensors while minimizing the average dead duration of the sensors. To accomplish the objective, the to-be-charged sensors are first distributed among the WCVs by considering the energy requirement of the sensors and the WCVs’ movement. Second, a multi-node partial charging scheme has been proposed, where the sensors in the charging range of a WCV may be partially charged more than once until the sensors are fully charged. Simulation results show that the proposed scheme outperforms the existing schemes in terms of minimizing the number of dead sensors and yields a shorter average dead duration of a sensor, which proves the efficacy of our scheme.
Rohit Kumar[1];Joy Chandra Mukherjee[1]. On-demand Multi-Node Partial Charging Scheme using Multiple Wireless Charging Vehicles in WRSN[C]//ICDCN '25: Proceedings of the 26th International Conference on Distributed Computing and Networking, Hyderabad India, January 4 - 7, 2025, IN: ACM, 2025: 21 - 30