无线传感器网络T-MAC协议在TinyOS上的实现

Implementation of T-MAC Protocol for Wireless Sensor Networks

文章介绍了无线传感器网络T-MAC协议的工作原理和特性。考虑到T-MAC协议中存在的早睡问题会造成传输延时,影响网络性能,文中给出了相应的解决方案,并在TinyOS平台上实现了T-MAC协议模块。经Mica节点硬件平台测试,T-MAC模块中包括建立和维护节点的活动/休眠周期、控制节点接入信道、完成数据分组的收发等功能能够正常运行,性能良好,符合设计标准。

This paper introduces the principle and features of the T-MAC protocol for wireless sensor networks. Considering the early-sleeping problem of T-MAC protocol would cause the transmission delay and affects the property of networks, this paper presents a solution of the problem and implements the T-MAC protocol module on TinyOS. Tested on the Mica node hardware platform, all of the T-MAC protocol module＇s functions including establishing and maintaining the cycle of node activation/sleeping, controlling the node access channel and transmitting/receiving of data package could run well, the performance was excellent and conformed to the designed standard.