无线传感器网络中一种动态节能的MAC协议  

A Dynamic Energy-Efficient MAC Protocol for Wireless Sensor Networks

作　　者：谢茂涛[1] 

机构地区：[1]中南民族大学计算与实验中心,湖北武汉430074

出　　处：《通信技术》2008年第6期14-16,共3页Communications Technology

摘　　要：媒体访问控制(MAC)协议是无线传感器网络的关键协议之一,它对无线传感网络的运行和性能具有重要的影响。针对基于簇的TDMA机制存在问题,文中提出了一个动态节能的DE-MAC协议,该协议能够根据簇成员节点数目和通信负载动态地分配成员节点的时隙,减少节点的空闲侦听时间。仿真结果表明,DE-MAC协议能够有效地提高信道的利用率和网络能量有效性。Medium access control（MAC） protocol is one of the key protocols for wireless sensor networks and has a significant effect on the function and performance of wireless sensor networks. Based on the problem of the clustered TDMAprotocol, this paper presents a dynamic and energy-efficient MAC protcocl for wireless sensor networks（DE-MAC）. DE-MAC dynamically assigns the time-slot of nodes according to the number of cluster member and traffic load, and reduces the idle listening. The simulation results show that this protocol improves channel utility and the network energy usability.

关 键 词：无线传感器网络 TDMA协议 簇 时隙 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]