摘要
针对无线传感器网络(WSNs)节点定位问题中DV-Hop算法的不足,提出利用粒子群优化算法对改进DV-Hop得到的估算位置校正。这种方法将定位问题看成一个多维优化问题,并且不需要任何额外硬件设备,也不会增加通信量。最后将仿真实验结果与改进DV-Hop算法进行比较,表明基于PSO算法优化的改进DV-Hop定位算法在优化性能上有所改进,有效提高了节点定位精度,证明该方法的有效性。
In order to overcome the disadvantage of DV-Hop algorithm for node localisation in wireless sensor networks ( WSNs), we sug- gest to use particle swarm optimisation (PSO) to correct the estimated position derived from the improved DV-Hop. This approach regards the localisation issue as a multidimensional optimisation problem and does not need any extra hardware devices as well as the increase in traffic. The simulation experimental results are compared with the improved DV-Hop at last, and they show that the improved DV-Hop localisation al- gorithm based on PSO does have the improvement in optimisation performance, and effectively raises the node positioning accuracy, which prove the validity of the presented method.
出处
《计算机应用与软件》
CSCD
北大核心
2012年第12期69-72,76,共5页
Computer Applications and Software
基金
国家自然科学基金项目(61170119)
无锡城市学院重点课题(WXCY-2011-GZ-006)