Cluster Head Selection in WSN based on Coverage preserving and Energy Eciency Cluster-heads are generally chosen either in a random manner or mainly based on nodes residual energy. Accordingly, there is no guarantee that network coverage is

在TOA测距的基础上，提出了一种三维无线传感器网络节点定位算法，并对其性能进行了分析，给出了算法的时间同步误差和定位误差。最后在现有仿真平台OMNET++的基础上构建三维仿真模块，对算法进行了仿真实现，给出了该算法的定位精度和覆盖率-This paper proposes one three-dimensional localization algorithm based on TOA distance measurement and analyzed the performance of th

Mobile wireless sensor networks (MWSNs) have recently launched a growing popular class of WSN in which mobility plays a key role in the execution of the application. In recent years, mobility has become an important area of research for the WSN com