Details of Research Outputs

在无线传感器网络中,节点能量限制、硬件以及通信链路故障等问题,造成网络空洞的产生且影响了网络的正常运作,因此如何确保网络覆盖率成为传感器网络中需要解决的重要问题.近年来,通过引入移动节点来进行覆盖控制,提高传感器网络的覆盖率成为一个新的研究趋势.本文通过充分调研利用移动节点进行网络覆盖控制的方法,并对其进行了分类和比较,归纳了移动式网络覆盖的各种方法的特点,分析这些方法的性能和适用范围,总结存在的主要问题,并指出未来的研究方向. 

Due to the existence problems of energy depletion, hardware failure and communication link failure and so on, which causes network holes and affects the normal network operation.  The insurance of coverage becomes an urgent issue in wireless sensor networks.  In recent years, a new research trend is to utilize mobile nodes for coverage control, which increases the coverage of wireless sensor networks.  In this paper, we have a comprehensive investigation about the current major topology control methods with mobile nodes, and summarize the characteristics of mobile topology control methods via classification and comparison of these methods.  Finally, we analyze the performances and the application scopes of these methods, summarize the main problems, and point out the future research directions.