摘要
针对质心和PDM定位算法存在的节点定位误差大及能耗高等方面的不足,提出一种改进的混合优化定位算法,该算法不但降低了附加节点的定位误差而且大大减小了能量的消耗.通过NS-2仿真软件对节点的定位误差等方面进行仿真验证,结果表明了优化后的算法的定位误差率比之前的定位误差率明显减小,且锚节点的数量越多定位越准确.从仿真实验的结果显示出该优化后的定位算法稳定且易于实现,同时改善了定位误差和能耗水平,达到了所要求的目标.
This paper applies a new modified Synthesized algorithm based on the Centroid and PDM Localization Synthesized existence of high node location error and energy consumption higher shortcomings. The algorithm not only reduces the positioning error of additional nodes, but also greatly reduce the energy consumption. Through NS-2 simulation software on the node to locate the error simulation, results show that the optimized algorithm of positioning error rate is reduced than before. And more of anchor nodes create more accurate positioning. The result of the simulation experiment shows that the optimized algorithm is stable and easy to implement and improve the positioning error and energy consumption level. It achieves the required goals.
出处
《计算机系统应用》
2014年第7期121-125,共5页
Computer Systems & Applications
