摘要
针对当前无线传感器网络定位算法的不足,在对几种传统定位方式进行局部改进的基础上,提出了一种基于分布式协作的节点定位方法。通过改进策略的独立计算与基于分布式协作的二次综合定位分析,能获得传感器节点的精确位置信息。而后采用基于信标节点角色变换的扩展定位方法,扩展了网络中可定位节点的范围,降低了网络中盲点存在的可能性,使全网节点都可方便进行定位,同时也降低了信标节点计算量。通过仿真实验,证明了该方法的正确性和有效性。
Aimed at some defects of current localization algorithms in wireless sensor networks,it makes partial improvement on some traditional localization models, and puts forward a type of localization method based on distributed collaboration. By independent calculation of improvement strategies and distributed collaborative based integrated localization analysis, accurate location information will be gained. This method also extends the domain of wireless sensor networks nodes which can be located easily, reduce the possibility of the existence of blind spots in the network and the amount of beacon nodes calculated. The results of simulation illustrate that this method is correct and effective.
出处
《计算机技术与发展》
2012年第5期60-63,共4页
Computer Technology and Development
关键词
无线传感器网络
定位
协作定位
信标节点
wireless sensor networks
localization
cooperating localization
beaconing nodes
