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基于遗传算法的WSN移动信标定位及路径求取 被引量:6

Localization of WSN with mobile beacon and path acquisition
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摘要 针对无线传感器网络中使用移动信标定位问题,提出了基于遗传算法的无线传感器网络移动信标定位及路径求取方法。首先根据区域面积计算出三重覆盖所需的发射信标位置的个数,用遗传算法优化求取信标发射位置,再用流浪旅行商算法获取遍历发射位置点的最优路径,在遍历时基于加权质心算法对传感器节点定位。实验结果表明,该方法可对传感器节点进行高效定位。 Localization of wireless sensor network with mobile beacon and path acquisition based on genetic algorithm is proposed in order to solve the problem of localization in wireless sensor network with mobile beacon.Firstly,the number of positions for triple circle-covering is calculated according to the area of the region,then a method is advanced based on genetic algorithm to arrange the positions in region,at last,the Wandering Salesman Problem(WSP) algorithm is applied to the positions sequence so as to get the optimal path touring it.When mobile beacon moves according to the optimal path and emits RF signals at every position,the sensors in region can work out their position with weighted centroid localization algorithm.The simulation results indicate that the proposed localization method is efficient.
作者 单曦靓 孙燕
出处 《计算机工程与应用》 CSCD 北大核心 2010年第30期95-97,124,共4页 Computer Engineering and Applications
关键词 无线传感器网络 传感器定位 遗传算法 移动信标 wireless sensor network; sensor localization; genetic algorithm; mobile beacon;
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