摘要
平均每跳距离的估计在无线传感器网络DV-Hop定位算法中占有重要的地位,是决定定位精度的重要因素之一。针对传统DV-Hop算法的不足,本文考虑全局及锚节点周围局部网络,改进平均每跳距离的估计算法,同时,对未知节点到锚节点之间的跳数进行修正。在相同的实验环境下,仿真结果表明改进算法减少了定位误差,一定程度上提高了定位精度。
The estimation of average hop distance plays a dramatic important role in the DV-Hop localization algorithm and has great influence in the accuracy. In order to reduce the estimation error, taking into consideration global and local network circumstance, the hop estimation between unknown nodes and anchor is improved. Simulation results show that the proposed algorithm is effective in improving the accuracy of localization.
出处
《计算机与现代化》
2012年第12期4-7,共4页
Computer and Modernization
