Wireless Charging Scheduling Algorithms in Wireless Sensor Networks

• DOI: 10.6138/jit.2012.13.2.11
• Publication Date: 2012-03-01
• Authors: Wen Ouyang; Chang Wu Yu; Ching-Cheng Tien; Chih-Wei Hao; Tung-Hsien Peng

Wireless sensor nodes are commonly deployed in outdoor or hazardous environments. Due to limited resources and power consumption required perform tasks, these may experience shortages thus lead the disconnection of whole wireless network. To prolong lifetime network, new technologies developed wirelessly recharge via mobile machines. Previous works have considered applying charging elevate network without defining performance optimization. In addition, effect speed machines, chargingspeed, possibility more than one machine charge node is discussed. Another interesting issue effective utilization once it disconnected. This work first which formally defines problem networks by converting into a job scheduling optimization provides an algorithm for using multiple Two algorithms further provided locate sensors whose failure can easily jeopardize connectivity solve problems protecting weak first. From simulation results, our methods outperform previous sense number received messages sink.