The Next Generation of Mobile Localization Systems

Conference: European Wireless 2005 - 11th European Wireless Conference 2005 - Next Generation wireless and Mobile Communications and Services
04/10/2006 - 04/13/2005 at Nicosia, Cyprus

Proceedings: European Wireless 2005

Pages: 4Language: englishTyp: PDF

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Frattasi, Simone; Prasad, Ramjee (Center for TeleInFrastruktur (CTIF), Aalborg University, Niels Jernes Vej 12, 9220 Aalborg, Denmark)
Monti, Marco (Konica srl, Via H.Schuman 11, 00061 Anguillara Sabazia, Rome, Italy)
Teotino, Daniele; Antonini, Mirko; Ruggieri, Marina (Dpt. of Electronic Engineering, ”Tor Vergata” University, Via del Politecnico 1, 00133 Rome, Italy)

Along with a vision that foresees the Fourth Generation of Mobile Communication Systems (4G) as based on a cellular extended short-range network, in this paper we propose a GPS-free localization system, named the Synergic Localization System (SLS), and its localization algorithm. Basically, the cellular network supervises the formation of clusters, where each Mobile Station (MS) can measure its relative distance from the other MS members using its short-range technology. These information are transmitted to the cellular network and used in the localization algorithm by the location server, in addition to the information retrieved using a hybrid Time Of Arrival/Angle Of Arrival (TOA/AOA) technique, to obtain the position of each user in the group. As a consequence of this synergy between cellular and short-range, the fist simulation campaign shows the effectiveness of the SLS in terms of an enhanced accuracy of the estimated positions respect to the actual stand-alone cellular and GPS-based solutions.