基于LTE方向型传播模型的模拟退火加权定位算法

发布时间：2018-01-14 05:03

本文关键词：基于LTE方向型传播模型的模拟退火加权定位算法　出处：《计算机科学》2017年05期 　论文类型：期刊论文

【摘要】：针对LTE网络采集到的MRO数据,提出一种基于LTE方向型传播模型的模拟退火加权定位算法。先结合LTE定向天线和小区特性,引入方向型参量提出基于RSS的方向型传播模型,对传统的信号传播模型COST-231Hata进行改进;然后提出距离比加权算法消除RSS波动误差,将定位问题转换为一元求解问题,使用模拟退火算法计算最优解;最后通过距离椭圆模型对结果进行方位校正,得到最终终端定位结果。算法对比实验结果表明,基于LTE方向型传播模型的模拟退火加权定位算法具有较高的定位精度,完全符合FCC规定的定位精度要求。
[Abstract]:Based on the MRO data collected by LTE network, a simulated annealing weighted location algorithm based on LTE directional propagation model is proposed. Firstly, combining LTE directional antenna and cell characteristics. The directional propagation model based on RSS is proposed by introducing directional parameters, and the traditional signal propagation model (COST-231Hata) is improved. Then, the distance ratio weighted algorithm is proposed to eliminate the RSS fluctuation error, and the location problem is transformed into a univariate solution, and the simulated annealing algorithm is used to calculate the optimal solution. Finally, the result is corrected by the distance elliptic model, and the final terminal location result is obtained. The algorithm is compared with the experimental results. The simulated annealing weighted localization algorithm based on LTE directional propagation model has high localization accuracy, which fully meets the requirements of FCC.
【作者单位】：浙江工业大学计算机科学与技术学院;
【基金】：浙江省自然科学基金重点项目:空间大数据信息智能提取关键技术研究(LZ14F020001) 国家自然科学专项基金项目:面向粒度化环境的遥感可信计算研究(61340058)资助
【分类号】：TN929.5
【正文快照】： 1引言近年来,4G网络已经在我们的生活中得到广泛的应用,LTE(长期演进)作为4G网络的无线标准,较3G网络而言其数据传输速率提高了3~5倍,极大地满足了人们对移动设备传输速率的需求。与此同时,基于位置服务(LBS)已然成为最热门的移动应用,被越来越多的人所关注。因此,研究基于LTE

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