A Precise Coverage Control Protocol with Limited Communication in Wireless Sensor Networks
ln this paper,we address the problem of maximizing sensor networks lifetime under coverage constraint. A Distributed Coverage Control Strategy based on Precise Coverage Degree (DSP) is proposed for both homogeneous and heterogeneous sensor networks randomly deployed. We extend the coverage degree concept by defining Pure Coverage and Joint Coverage.DSP adopts the probabilistic sense model,which is a more practical model compared with the binary sensing model. In DSP,each node calculates the coverage degree locally,so it can provide differentiated service of coverage degree,which can be adjusted dynamically according to the precision requirement by the application. Our protocol takes the complicated boundary effect into account. Experiments results show that with kcoverage guarantee,DSP can reduce the number of the active nodes and prolong the networks lifetime effectively. In addition,DSP can balance the energy consumption,and the protocol needs limited communication.
Hanmei Luo Huanzhao Wang
Xian Jiaotong University Department of Computer Science and Technology Xian 710049,P.R.China
国际会议
The Fifth IEEE International Symposium on Embedded Computing(SEC 2008)(第五届IEEE国际嵌入式系统计算会议)
北京
英文
149-154
2008-10-06（万方平台首次上网日期，不代表论文的发表时间）