Aμ-MAC:一种自适应的无线传感器网络MAC协议  

Aμ-MAC:An Adaptive MAC Protocol for Wireless Sensor Networks

作　　者：古连华[1] 程良伦[1] ZHU Quan-Min 

机构地区：[1]广东工业大学自动化学院,广州510006 [2]Intelligent Autonomous Systems Lab, University of the West of England

出　　处：《自动化学报》2010年第1期54-59,共6页Acta Automatica Sinica

基　　金：国家自然科学基金(60673132);广东省自然科学基金(07117421;8351009001000002)资助~~

摘　　要：结合基于竞争和调度机制的混合型方案是高效的无线传感器网络MAC协议的重要解决思路.μ-MAC是一种典型的混合型MAC协议,本文在深入研究μ-MAC的基础上,提出一种自适应的混合型协议Aμ-MAC.它针对动态流量的数据采集型应用,解决了μ-MAC中动态拓扑适应性及时钟同步问题,并提供了良好的流量自适应性.仿真结果表明,Aμ-MAC增强了协议的扩展性和适应性,具有更好的网络生存能力,而保留了与μ-MAC相近的节能效率和时延性能.The hybrid mechanism combining contention-based and schedule-based ways is an important solution for MAC protocols of wireless sensor networks （WSN）. μ-MAC is an effective hybrid MAC protocol of WSN. After a deep investigation of μ-MAC, an adaptive hybrid MAC protocol Aμ-MAC is proposed for the dynamic-traffic data collection applications. It solves the problems of the adaptability to dynamic topology and clock synchronization inμ-MAC, and further supports better adaptability to load traffic. The simulation results show that Aμ-MAC can enhance the expansibility and adaptability of the protocol and enable better network survivability, and yet has almost the same energy-efficiency and latency as μMAC.

关 键 词：无线传感器网络 自适应 混合型 MAC协议 μ-MAC Aμ—MAC 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN915.04[自动化与计算机技术—控制科学与工程]