Timing error suppression scheme for CDMA network based positioning system

This paper discusses an improved method for location in CDMA based cellular communication system. An effective technique is proposed for locating a mobile stationpsilas position based on Time Difference of Arrival (TDOA) technique. This technique is based on estimating the difference in the arrival...

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Bibliographic Details
Main Authors: Sunmi Kim, Heedong Choi, Juhyun Park, Yongwan Park
Format: Conference Proceeding
Language:English
Subjects:
Base stations
CDMA
Delay effects
Fiber nonlinear optics
Multiaccess communication
non-line-of-sight (NLOS)
Nonlinear optics
Optical fiber cables
Optical noise
Propagation delay
Repeater
Repeaters
Time Difference of Arrival (TDOA)
Timing
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Summary:This paper discusses an improved method for location in CDMA based cellular communication system. An effective technique is proposed for locating a mobile stationpsilas position based on Time Difference of Arrival (TDOA) technique. This technique is based on estimating the difference in the arrival time of the signal from the source at multiple receivers. The major error sources in the CDMA network location system are nonline-of-sight (NLOS) propagation error and hardware system such as repeater. Proposed algorithm based on probability of mobile station (MS) location in serving cell radius. We adopt an enhanced TDOA (E-TDOA) technique for suppress those timing errors. The performance of proposed algorithm is evaluated for CDMA based location system. Simulation also demonstrates in field environments.
ISSN:2153-358X
2153-3598
DOI:10.1109/PLANS.2008.4570057