naa a22 4500 510796362 CHVBK 20180411083338.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11277-012-0537-2 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0537-2 Localization in Wireless Networks: The Potential of Triangulation Techniques [Elektronische Daten] [Vicente Osa, Joaquín Matamales, Jose Monserrat, Javier López] User localization is one of the key service-enablers in broadband mobile communications. Moreover, from a different point of view, next steps towards automatic network optimization also depend upon the capability of the system to perform real-time user localization, in order to obtain the traffic distribution. The aim of this paper is to get deeper into the feasibility and accuracy of different localization mechanisms ranging from triangulation to database correlation. Call tracing data extracted from a real operating mobile network have been used to assess these algorithms after the execution of an extensive measurements campaign. Results show that enhanced triangulation offers the best performance even outperforming other more sophisticated mechanisms like fingerprinting, without introducing any change in the network and without requiring any special characteristic of the user equipment. Indeed, the lack of precision of channel estimates, which for the same position could differ up to 10dB, introduces a large uncertainty that harms localization mechanisms based on database correlation. Finally, this paper identifies the areas for improvement in triangulation to reach its maximum potential, provides details for its implementation and analyzes the performance of the different proposed enhancements. Springer Science+Business Media, LLC., 2012 Localization nationallicence Triangulation nationallicence Fingerprinting nationallicence Wireless networks nationallicence Osa Vicente iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut Matamales Joaquín iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut Monserrat Jose iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut López Javier Ingenia Telecom, S.L., Ronda Narciso Monturiol 4, 46980, Paterna, Spain aut Wireless Personal Communications Springer US; http://www.springer-ny.com 68/4(2013-02-01), 1525-1538 0929-6212 68:4<1525 2013 68 11277 https://doi.org/10.1007/s11277-012-0537-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0537-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Osa Vicente iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Matamales Joaquín iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- Monserrat Jose iTEAM Research Institute, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022, Valencia, Spain aut NATIONALLICENCE 700 1- López Javier Ingenia Telecom, S.L., Ronda Narciso Monturiol 4, 46980, Paterna, Spain aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/4(2013-02-01), 1525-1538 0929-6212 68:4<1525 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer