Title :
Subscriber location in CDMA cellular networks
Author :
Caffery, James, Jr. ; Stuber, Gordon L.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
Subscriber radio location techniques are investigated for code-division multiple-access (CDMA) cellular networks. Two methods are considered for radio location: measured times of arrival (ToA) and angles of arrival (AoA). The ToA measurements are obtained from the code tracking loop in the CDMA receiver, and the AoA measurements at a base station (BS) are assumed to be made with an antenna array. The performance of the two methods is evaluated for both ranging and two-dimensional (2-D) location, while varying the propagation conditions and the number of BS´s used for the location estimate
Keywords :
antenna arrays; cellular radio; code division multiple access; direction-of-arrival estimation; tracking; CDMA cellular networks; CDMA receiver; angles of arrival; antenna array; base station; code tracking loop; code-division multiple-access; location estimate; measured times of arrival; performance; propagation conditions; radio location techniques; ranging; subscriber location; two-dimensional location; Antenna arrays; Antenna measurements; Antennas and propagation; Base stations; Land mobile radio cellular systems; Multiaccess communication; Receivers; Receiving antennas; Tracking loops; Two dimensional displays;
Journal_Title :
Vehicular Technology, IEEE Transactions on
