一种新的基于非测距的无线传感器网络三维定位算法

针对无线传感器网络在空间、海洋等三维场景下的应用,提出了一种基于非测距的分布式三维定位算法(DRFP-3D).该算法无需测量节点间的实际距离,只需要锚节点广播它们自身的信标信息,在锚节点一跳通信范围内的未知节点接收并存储监听到的信标信息,并根据这些信息估计自身位置.与现有的基于非测距的三维定位算法相比,该算法的通信开销和定位误差均比较小,且对网络拓扑结构具有一定的鲁棒性.仿真结果表明,在500 m×500 m×50 m的三维空间内,随机放置20个锚节点,ANR=4,就能对97%的节点进行定位,其平均定位误差仅为20%左右.

A Novel Distributed and Range-Free Localization Algorithm in Three-dimensional Wireless Sensor Networks

A novel distributed and range-free positioning algorithm is proposed for three-dimensional wireless sensor networks(DRFP-3D),which is used for wireless sensor networks in space,marine and other three-dimensional scene.The algorithm does not need to measure the distance between nodes,which only needs anchor nodes to broadcast their location information,the unknown nodes which are in the one-hop communication range of the anchor node receive and store the beacon information,and estimate their position accordi...