Paper Info
Title
Analysis Of Challenges In The Application Of Deterministic Wireless Channel Modelling In The Implementation Of Wlan-Based Indoor Location System In Large Complex Scenarios
Abstract
This paper describes user location and tracking on indoor scenarios based on the pattern recognition of IEEE 802.11 signal strength measurements by means of a fuzzy inference system. Signal fluctuation makes difficult and imprecise the trilateration of the user location, so we propose the use of fuzzy techniques to deal with such imprecision. To implement the location system, deterministic wireless channel characterisation is obtained by means of in-house implemented 3D ray launching code. Several scenarios are analysed, since their size strongly impacts on algorithm convergence. The limitations and solution, based on subdivision of the scenario in sub-zones, are analysed and applied to the case of a new emergency hospital complex in Navarra. Simulation and measurement results are presented showing good agreement. The results can aid in the determination of an optimised WiFi-based location system providing efficient positioning and communication services in complex indoor scenarios.
Year
DOI
Venue
2014
10.1504/IJAHUC.2014.059916
INTERNATIONAL JOURNAL OF AD HOC AND UBIQUITOUS COMPUTING
Keywords
Field
DocType
wireless location system, 3D ray launching, wireless channel characterisation, fuzzy sets, wireless local area network access points
Wireless,Computer science,Fuzzy logic,Communication channel,Computer network,Fuzzy set,Subdivision,Local area network,Location systems,Trilateration
Journal
Volume
Issue
ISSN
15
1-3
1743-8225
Citations 
PageRank 
References 
1
0.36
6
Authors
5
Name
Order
Citations
PageRank
Iris Sesma110.36
Leire Azpilicueta2144.54
José Javier Astrain38418.39
Jesús E. Villadangos49220.12
Francisco Falcone5329.67