Title :
Performance analysis of power up function in position location systems
Author :
Landa, Liliana ; Munoz, David ; Maturino, Hector
Author_Institution :
Center for Electron. & Telecommun., ITESM, Nuevo Leon, Mexico
Abstract :
The FCC has mandated that cellular carriers should provide mobile station position location within a given accuracy. Multilateration techniques demand the mobile station to be heard by at least three base stations. A way to improve the visibility of a mobile station is to increase transmit power levels for short periods of time. This capability is known as the power up function (PUF). This work evaluates, based on Campbell´s theorem, the impact of using PUF in code division multiple access (CDMA) systems. Visibility analysis is also conducted for one and two tier scenarios
Keywords :
adjacent channel interference; cellular radio; code division multiple access; multiuser channels; radio direction-finding; CDMA systems; Campbell´s theorem; FCC; accuracy; adjacent cell interference; cellular carriers; code division multiple access; mobile station position location; multilateration techniques; performance analysis; position location systems; power up function; transmit power levels; uniform distribution analysis; visibility analysis; Base stations; Cellular phones; Decoding; FCC; Multiaccess communication; Performance analysis; Power control; Power generation; Probes; Routing;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851706
