GIS-based mobile coverage estimation to reduce uncertainty of cellular trajectories

IF 1.2 Q4 TELECOMMUNICATIONS
M. Forghani, F. Karimipour
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引用次数: 2

Abstract

Abstract Mobile positioning data are normally generated as scattered points in CDRs (Call Detail Records), which include the IDs of connected cell towers for call activities. To interpret mobile associations with towers, one needs to model the area where the mobile phone user is likely to be when connected. Voronoi cells, which define the area closest to each tower, are usually employed to this end. However, the accuracy of Voronoi tessellation is influenced by various environmental factors due to propagation of signals in different manners, such as diffraction, scattering and reflection. This non-specificity of cell shapes causes a major source of uncertainty in, say, trajectory reconstruction. This paper evaluates the effect of imprecision of cell shape on accuracy of CDR-based trajectory reconstruction. It further aims to reconstruct more accurate trajectories from the coarse CDR data through considering the wave propagation models in estimating the location of mobile phone users. Since many of the factors in radio wave propagation are geographical, GIS techniques will be incorporated into this procedure.
基于gis的移动覆盖估计,减少蜂窝轨迹的不确定性
移动定位数据通常在cdr (Call Detail Records)中以分散点的形式生成,cdr中包含用于呼叫活动的连接蜂窝塔的id。为了解释手机与信号塔的关联,我们需要对手机用户连接时可能所在的区域进行建模。Voronoi单元定义了离每个塔最近的区域,通常用于此目的。然而,由于信号以不同的方式传播,如衍射、散射和反射,Voronoi镶嵌的精度受到各种环境因素的影响。这种细胞形状的非特异性导致了主要的不确定性来源,例如,轨迹重建。本文评估了细胞形状不精确对基于cdr的轨迹重建精度的影响。在估计手机用户位置时,进一步考虑波传播模型,从粗糙的CDR数据中重建更精确的轨迹。由于无线电波传播中的许多因素是地理因素,因此将把地理信息系统技术纳入这一程序。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.70
自引率
8.70%
发文量
12
期刊介绍: The aim of this interdisciplinary and international journal is to provide a forum for the exchange of original ideas, techniques, designs and experiences in the rapidly growing field of location based services on networked mobile devices. It is intended to interest those who design, implement and deliver location based services in a wide range of contexts. Published research will span the field from location based computing and next-generation interfaces through telecom location architectures to business models and the social implications of this technology. The diversity of content echoes the extended nature of the chain of players required to make location based services a reality.
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