Performance of Antenna Arrays with Reverse-Link Synchronous Transmission Technique for DS-CDMA System in Multipath Fading Channels

Authors:
Youngseok Kim;Seunghoon Hwang;Dongkyoon Cho;Keumchan Whang
Affiliations:
-;-;-;-
Venue:
AISA '02 Proceedings of the First International Workshop on Advanced Internet Services and Applications
Year:
2002

Citing 1
Cited 1

Digital Beamforming in Wireless Communications

Digital Beamforming in Wireless Communications

Analysis of a combined antenna arrays and reverse-link synchronous DS-CDMA system over multipath Rician fading channels

EURASIP Journal on Wireless Communications and Networking - Special issue on advanced signal processing algorithms for wireless communications

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Abstract

This paper introduces an improved antenna arrays (AA) in which the reverse-link synchronous transmission technique (RLSTT) is employed to improve the estimation of covariance matrices at Beam-former-RAKE. By beamforming, the desired user's signal is enhanced and the co-channel interference (CCI) from other directions is reduced. For in-beam multiple access interference (MAI) reduction, the RLSTT is used in the first RAKE finger. The RLSTT is a robust approach that takes into account the fact that the in-beam MAI statistics at the beam-former may be less valid and lets it be more reliable. Theoretical analysis demonstrates that an increase in system capacity as a function of the number of antennas and the number of interferences.