Novel IS-95 CDMA mobile station receiver structure with smart antenna canceller

Document Type

Conference Proceeding

Publication Date

12-1-1998

Abstract

The capacity of wireless CDMA systems in the forward link is limited by both intra-cell and inter-cell cochannel interferences. In particular, when the mobile station is close to a cell boundary, the desired signal is disturbed by relatively strong interference from neighboring base stations. In this paper, a receiver architecture with smart antenna followed by a RAKE demodulator is suggested at IS-95 CDMA mobile station for interference suppression and diversity combining. Such a structure can work well only when the channel vector of desired signal is correctly estimated. We use the identifying spreading codes (as in IS-95 for example) to provide and adaptively correct a channel vector estimate, suppress cochannel interference, hence improve the system capacity.

Identifier

0032297133 (Scopus)

Publication Title

IEEE International Symposium on Personal Indoor and Mobile Radio Communications PIMRC

First Page

947

Last Page

951

Volume

2

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