APPLICATION AND PERFORMANCE OF JOINT COOPERATIVE CELL-ID LOCALIZATION AND ROBUST MAP MATCHING

In this paper two extensions to the well known Cell-ID localization technique for handsets in mobile cellular networks are presented: It is firstly shown how the combination of multiple cross-provider Cell-IDs, which may become available from cooperation of one-hop neighbours in mobile adhoc networks (MANETs) or from Dual SIM mobiles phones, can be used to improve the positioning accuracy. Secondly, a robust map matching algorithm for Cell-ID localization is presented. The proposed map matching algorithm is termed robust, as it is capable of dealing with the - compared to GPS - more coarse Cell-ID based position estimates. An implementation of a localization system based on these methods shows, that the positioning accuracy can be significantly improved compared to the simple single Cell-ID technique.