摘要
无线传感器网络是由大量低成本的传感器节点构成的自组织网络。因为工作环境和成本因素,传感器节点通常不会更换电池,能量十分有限。节能是传感器网络中媒体访问控制(MAC)协议设计的首要问题,节点睡眠调度机制是节能的一个有效手段。文章介绍和分析了S-MAC,T-MAC,D-MAC中的睡眠调度机制的特点,并对未来研究方向提出了展望。
Many low cost sensor nodes composes wireless sensor network,wireless sensor network is a Self-organized network. As working environment and cost factor, not change sensor nodes batteries, so nodes are energy limited, saving energy is the primary issue in designing Medium Access Control （MAC） protocols in sensor networks. Nodes sleep scheduling is an efficiency method. This paper firstly introduce and analyze character of sleep scheduling in S-MAC, T-MAC and D-MAC. In the end bring forward prospect for research aspect in future.
出处
《计算机与数字工程》
2009年第7期50-52,共3页
Computer & Digital Engineering
