Israel Martín-Escalona

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This paper shows the need to transmit extra assistance data in hybrid location systems. The proposal presented here uses the current network protocols in order to deliver these non-standardized assistance data in 2G/2.5G location systems. To this end, a complete analysis of the available protocols and methods of identifying a non-standard assistance data(More)
This paper presents an analysis of teletraffic variables in cellular networks. The variables studied are the time between two consecutive handoff arrivals and the handoff delay. These teletraffic variables are characterized by means of an advanced software simulator that models several scenarios assuming Fixed Channel Allocation. Information about the(More)
— This work presents a statistical field study of the availability of time sources for location in a true wireless network. Terrestrial (base stations) and satellite (GPS) sources were investigated in three different urban scenarios. The density function of a specific number of sources available for triangulation is presented along with other statistical(More)