一种无线传感器网络路由协议的研究与改进

Research and improvement of routing protocol for wirless sensor networks

无线传感器网络由许多具有低功率无线收发装置的传感器节点组成,能够有效地感知、采集和处理网络覆盖区域中的相关信息,并发送给远处的基站进一步处理。由于传感器节点能量有限,路由协议必须尽可能地减少能量消耗,延长网络生命周期。对经典的LEACH路由协议进行研究,并针对簇头节点和基站的通信方式提出改进,用M atlab平台下对LEACH算法和改进后的算法进行仿真分析,结果显示:改进后的算法在延长网络生命周期和减少能量消耗上比LEACH算法有了很大改善。

Wireless sensor networks consisting of a large number of small sensors with low-power transceiver can be an effective tool for apperceiving, collecting and computing data in a variety of environment. The collected data must be transmitted to the base station for further processing. Since a network consists of sensors with limited battery energy,the routing protocol must be energy efficient in order to prolong the lifetime of network. LEACH is researched and improved. The improvement of LEACH is based on communication between cluster heads and base station. Both of the algorithms are emulated in Matlab. The results of the emulations prove that the improved algorithm is much better than LEACH in lifetime and energy consume.