无线传感器网络节点定位机制的研究

Research of Localization Mechanism of Node of Wireless Sensor Networks

无线传感器网络中的节点定位问题因为与很多的实际应用直接相关而尤为受到关注。节点定位机制可以分为基于测距(rang-based)的定位以及与距离无关(rang-free)的定位。文章在分析得出基于测距的定位算法实用性较差的基础上,着重研究了与距离无关的定位改进,对典型的质心算法进行了扩展,并通过实验给出了其性能评价。

The problem of node localization of wireless sensor networks was concerned expecia because it is related to many actual applications. There are two kinds of algorithm of node localization wireless sensor networks, namely range-based and range-free. On the basis of analysis of disadvantages range-based algorithm, the paper researched the improvement of localization of range-free emphatically. also expanded typical centroid algorithm and gave performance evaluation of centroid algorithin by expe ment.