基于生成树的无线传感器网络MAC协议  

MAC protocol for wireless sensor networks based on spanning tree

作　　者：岳宇君[1] 刘从新[1] 刘解放[1] 曾维鲁[1] 

机构地区：[1]三峡大学电气信息学院,湖北宜昌443002

出　　处：《传感器与微系统》2008年第3期52-54,57,共4页Transducer and Microsystem Technologies

摘　　要：简要分析了无线传感器网络(W SNs)MAC层协议,针对MAC协议在节能和时延方面的不足,提出了一种基于生成树的MAC协议(ST-MAC)。以汇聚点为根节点,创建一个由网络中所有节点组成的生成树。ST-MAC采用TDMA接入方式,其固有的低工作周期提高了网络性能。性能分析和实验结果表明:相对S-MAC,ST-MAC在能量节省和时延方面有较好的效果。Simple analysis is made in MAC for wireless sensor networks. Taking account of the drawbacks in energy efficient and latency of the existing MAC protocols ,a MAC protocol based on a spanning tree（ST-MAC） is proposed. With sink node as root node ,a spanning tree of all the nodes in the networks is created. ST-MAC adopts TDMA,whose inherent low duty cycle improves the performance of the networks. The performance analyses and experimental results show that ST-MAC is better than S-MAC in terms of both energy efficient and latency.

关 键 词：无线传感器网络 MAC协议 生成树 节能 低时延 

分 类 号：TN915.04[电子电信—通信与信息系统]