【摘要】 无线传感器网络是一个在学术界和工业界相当活跃的研究课题,其中节点定位是关键技术之一。本文针对传感器网络中的大范围数据采集场景,提出了一种基于路由信息的传感器网络定位算法RBSL。该算法以定向扩散路由为基础,在路由和数据采集的同时获得节点间连接关系,以此进行节点定位,定位过程额外通信开销很低,且只要求网关节点具有自身定位能力,传感器节点不需已知自身位置,节点间可以无测距能力或只具有简单RSS测距功能。仿真结果表明,RBSL算法定位精度较高,开销低,易实现,具有很好的应用前景。更多还原

【Abstract】 Wireless Sensor Networks (WSN) is a popular research topic in both academic and industrial areas. Sensor localization is one of the key technologies in WSN. This paper presents a new localization algorithm called Routing information Based Sensor Local- ization (RBSL) which could be used in the large area data acquisition scenario. Based on the directed diffusion routing protocol, RB- SL could obtain link information between sensors in the process of routing and data transmission, and then use this information to lo- cate the sensor nodes. RBSL need very few extra communications cost, and the sensor nodes don’t have to know their own locations. Simulation results show that RBSL is accurate, low- cost and easy to be realized.更多还原