摘要
无线传感器网络的能量有限是限制其作用的重要因素,因此如何高效使用能源并延长节点寿命成为研究的热点。结合已有算法,提出了一种改进的分簇路由算法,将簇头的选举由原先的随机选举变为基于剩余能量的选举,以平衡网络负载;在数据传输过程中采用多跳的通信方式降低簇节点的通信负载。仿真结果实现了节能、平衡节点能耗、延长网络寿命的目的。
Wireless sensor network is widely applied in military field and system of forest anti-fire. The limited amount of power of a wireless sensor network could restrict its function, which may become an important issue. How to use the limited power efficiently as well as to prolong network＇s service life is a hot topic in this field. And how to balance power consumption of nodes as well as improve communication capability is also important. Routing technique is one of the core factors in wireless sensor network. This paper proposes a revised cluster routing algorithm which changes cluster heads selection from random to remnant power in order to balance network loads. In the data transmission phase, a multi-hop telecommunication is established to reduce communication load among cluster heads. The simulation results show that the power is saved, the energy consumption is balanced and the network life is prolonged. Creative points in this paper including moving nodes which are originally immobile, selecting optimal number of cluster heads, saving energy when heads working, improving the protocol in nodes telecommunication.
出处
《科技导报》
CAS
CSCD
北大核心
2009年第14期73-76,共4页
Science & Technology Review
基金
"十一五"国家科技支撑计划重大项目(2006BAD03A01)
北京宜居城市绿化体系示范区建设项目(Z00060660000702)
关键词
无线传感器网络
分簇路由算法
簇头
wireless sensor network
cluster routing algorithm
cluster head
