NDLI: Location estimation in CDMA systems: enhanced measurement on pilot channels

Content Provider	IEEE Xplore Digital Library
Author	Pi-Chun Chen
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Rutgers Univ., NJ, USA (Pi-Chun Chen)
Abstract	The location estimation of mobile telephones is of great current interest. One major technical challenge of CDMA cellular-based location systems has been recognized as the near-far (hearability) problem. In this paper, we propose a novel cellular-based location system, the enhanced measurement on pilots channels, to overcome this problem without affecting the capacity of the existing cellular communication systems. The basic idea is to enhance the hearability of pilots by increasing the integration time at the correlator. The limitation on the integration time is analyzed and the feasibility of the enhanced measurement system is demonstrated by a numerical example. It is shown that the location system performance is a tradeoff between the estimation accuracy, processing time, and the coverage area.
Starting Page	1784
Ending Page	1788
File Size	493530
Page Count	5
File Format	PDF
ISBN	078035284X
DOI	10.1109/ICC.1999.765555
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-06
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Semiconductor device measurement Broadcasting Velocity measurement Intelligent networks Current measurement Electric variables measurement Laboratories Mobile computing Correlators
Content Type	Text
Resource Type	Article

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