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arXiv 2006.05397eess.SPcs.ITcs.LGmath.ITstat.ML
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无线电地图实时定位

Real-time Localization Using Radio Maps

TU Berlin(柏林工业大学);University of Tromsø(特罗姆瑟大学)

Çağkan Yapar, Ron Levie, Gitta Kutyniok, Giuseppe Caire

摘要:

本文论述了在密集的城市场景中的蜂窝网络中的定位问题。全球导航卫星系统通常在城市环境中表现不佳,当设备和卫星之间没有视线时,因此通常需要替代的定位方法。我们提出了一个简单而有效的方法定位的基础上的路径损耗。在我们的方法中,要定位的用户报告从具有已知位置的一组基站接收的信号强度。对于每个基站,我们在地图中每个位置都有一个很好的路径损耗近似值,由RadioUNet提供,RadioUNet是城市环境中基于深度学习的有效路径损耗函数模拟器,类似于射线跟踪。使用所有基站的路径损耗函数和报告的信号强度的近似值,我们能够提取用户的位置的非常准确的近似值。

英文摘要:

This paper deals with the problem of localization in a cellular network in a dense urban scenario. Global Navigation Satellite System typically performs poorly in urban environments when there is no line-of-sight between the devices and the satellites, and thus alternative localization methods are often required. We present a simple yet effective method for localization based on pathloss. In our approach, the user to be localized reports the received signal strength from a set of base stations with known locations. For each base station we have a good approximation of the pathloss at each location in the map, provided by RadioUNet, an efficient deep learning-based simulator of pathloss functions in urban environment, akin to ray-tracing. Using the approximations of the pathloss functions of all base stations and the reported signal strengths, we are able to extract a very accurate approximation of the location of the user.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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