Coverage-Enhancing Algorithm for Wireless Multi-Media Sensor Networks Based on Three-Dimensional Perception
Xiao Fu, Ruchuan Wang, Lijuan Sun, Weng Jiaoyan · Dianzi xuebao · 2012
Coverage is one of the hot research topics in wireless sensor networks,which indicates sensing QoS by wireless sensor networks.Motivated by the existing coverage-enhancing algorithm of wireless multimedia sensor network,a new three dimensional sensor perception model is established and a coverage-enhancing algorithm based this model(TDPCA) is proposed.This algorithm divided the three-dimensional perception model into pitch angle and deviation angle,thus the best optimal pitch angle is calculated according the location of monitoring area and nodes,and then deviation angle is optimized based on particle swarm optimization,which eliminate overlap and blind perception area effectively.Experimental results show that compared with the existing three-dimensional cover-enhancing algorithm in wireless sensor network,sensation overlap area and blind spots may be eliminated by TDPCA,and thus ultimate coverage performance of the wireless sensor network can be enhanced.