无线传感器网络基于接收信号强度的概率定位算法

Wireless Sensor Network Based on the Received Signal Strength Probabilistic Localization Algorithm

在无线传感网络中,定位对无线传感器网络的应用、操作和管理发挥着至关重要的作用。针对传感器节点的定位,提出了一种基于接收信号强度的概率定位算法。介绍了算法原理及实现过程,讨论了信标节点分布对该算法性能的影响,最后比较了本概率定位算法和最小二乘定位算法在传感器节点定位性能上的优劣。仿真结果表明,信标节点分布对未知节点的定位误差具有较大的影响;本定位算法的性能要优于最小二乘定位算法。

In the wireless sensor network, locating on the application of wireless sensor networks, operation and management plays a vital role in. The sensor node localization, proposed one kind based on the received signal strength of probabilistic localization algorithm. Introduces the algorithm principle and implementation process, discussed the beacon node distribution on the performance of algorithm, finally compares the probabilistic localization algorithm and the least square algorithm in sensor node localization performance on the quality of. The simulation results show that, beacon node of unknown node positioning error has a greater effect; the positioning algorithm performance is better than the least squares algorithm.