Scheduling Algorithm of Wireless Sensor Cluster Head Based on Multi-dimensional QoS

摘要

As for the tasks of how wireless sensor network selects cluster head and how cluster head node properly schedule a number of sensor nodes, cluster head scheduling algorithm based on multi-dimensional QoS is presented. Firstly, analytic hierarchy process in economic field is introduced into the resource scheduling algorithm to compute every dimensional parameters weight, then the tasks is allocated to appropriate cluster head according to customer satisfaction, QoS distance and loading equilibrium, etc. Finally, scheduling algorithm is analyzed by theory example and is simulated with CloudSim tool package. The experiment shows that the scheduling algorithm not only meets customer needs for multi-dimension QoS, but shortens the tasks of sensor nodes finishing time, and greatly improves sensor resource utility rate.