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Network-Based Positioning Using Last Visited Cells Report

by Tor Olofsson

Institution:	Linkping University
Year:	2017
Keywords:	positioning; cellular network; offline; last visited cells; LTE; simulation; Communication Systems; Kommunikationssystem
Posted:	02/01/2018
Record ID:	2186244
Full text PDF:	http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138518

Abstract

The positioning performance with the LVC (Last Visited Cells) report is evaluated and compared with extended reports with signal strength data. The LVC report contains cell identities and time spent in the last cells listened to. This is an off-line data source and the purpose of the positioning is to extract information about users whereabouts, which for example can be used to optimize the cellular network or vehicular traffic. The positioning evaluation is done in Matlab with a log-distance model, a fingerprinting algorithm, and a new LVC specific algorithm. A particle filter and a particle smoother is used to process simulated LVC reports and extended reports with different amount of information. The results are compared and evaluated with regard to the positioning accuracy and the information density of the reports.