无线传感器网络的拓扑控制

拓扑控制是无线传感器网络研究中的核心问题之一.拓扑控制对于延长网络的生存时间、减小通信干扰、提高MAC(media access control)协议和路由协议的效率等具有重要意义.全面阐述了拓扑控制技术的研究进展,首先明确了拓扑控制研究的问题和设计目标,然后分别从功率控制和睡眠调度两个方面介绍代表性的研究工作,并加以分析和比较,同时指出了这些工作存在的不足.最后分析和总结了研究现状中存在的问题、需要进一步研究的内容以及拓扑控制研究的发展趋势.

Topology Control for Wireless Sensor Networks

Topology control is one of the most fundamental problems in wireless sensor networks. It is of great importance for prolonging network lifetime, reducing radio interference, increasing the efficiency of MAC (media access control) protocols and routing protocols, among other things. This paper makes a full-scale introduction to the advancement of research on topology control. Firstly, the topology control problem and the design objectives are clearly presented. Secondly, an introduction is made to representative research efforts, along with analyses and comparisons, in two aspects, power control and sleep scheduling, respectively. At the same time, the defects of those efforts are clearly pointed out. Finally, existing problems, open issues and research trends are analyzed and summarized.