Paper Info
Title
Measurement-Based Study On The Influence Of Localization Errors On Estimated Shadow Correlations
Abstract
In recent years, novel spectrum access schemes have increased the need to further explore and exploit radio propagation dynamics. One proposed approach is to use spectrum sensing nodes for propagation environment estimation, and particularly to allow shadowing field extraction. In general there is a tendency to develop techniques that allow the automated and localized estimation of the spatial correlation structure of the shadowing field. Key issue when using such data is to take into account inherent localization errors and the impact that it has on these estimates. In this paper we use real measurement data acquired with extremely high localization accuracy to demonstrate and study the impact of localization errors. We present results for the propagation estimation, the extracted shadow field, and estimated shadow correlations. In particular, we show that spatial correlation metrics such as semivariograms are robust against localization errors higher than arising from the typical embedded GPS chipsets, up to approximately 20 m. Moreover, we have considered various probability distributions of localization errors, exploring their impact into our analysis. The reported results are highly relevant to development of measurement-based coverage estimation techniques and planning of drive tests or understanding limits of crowd-sourced data from user devices.
Year
Venue
Field
2016
2016 IEEE 17TH INTERNATIONAL SYMPOSIUM ON A WORLD OF WIRELESS, MOBILE AND MULTIMEDIA NETWORKS (WOWMOM)
Shadow,Spatial correlation,Telecommunications,Computer science,Algorithm,Measurement uncertainty,Shadow mapping,Correlation,Probability distribution,Global Positioning System,Radio propagation,Distributed computing
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
7
4
Name
Order
Citations
PageRank
Nikos Perpinias151.87
Alexandros Palaios2165.72
Janne Riihijärvi367977.26
Petri Mähönen41610150.99