A reduced rank constrained adaptive space-time interference canceller for multiuser multirate WCDMA systems

Hayoung Yang; Daesik Hong; Changeon Kang; Branka Vucetic

doi:10.1109/VTC.2002.1002559

A reduced rank constrained adaptive space-time interference canceller for multiuser multirate WCDMA systems

Hayoung Yang, Daesik Hong, Changeon Kang, Branka Vucetic

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper concentrates on developing a complexity reduced adaptive space-time interference canceller for multiuser WCDMA forward link. Through exploring the multiuser interference and utilizing the space-time diversity, a sub-optimum diversity receiver, called a reduced-rank constrained adaptive space-time interference canceller (R-CASTIC), is proposed. The proposed scheme mitigates the disadvantages of the full-rank multiple antenna system, such as computational complexity and increased difficulty to accurately tune the algorithm. R-CASTIC performs similar to the full-rank receiver within 1 dB at the BER of 10^-3 in less than 60% of total cell capacity, with only an eighth of the complexity of a full-rank receiver.

Original language	English
Pages (from-to)	620-624
Number of pages	5
Journal	IEEE Vehicular Technology Conference
Volume	2
DOIs	https://doi.org/10.1109/VTC.2002.1002559
Publication status	Published - 2002

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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AB - This paper concentrates on developing a complexity reduced adaptive space-time interference canceller for multiuser WCDMA forward link. Through exploring the multiuser interference and utilizing the space-time diversity, a sub-optimum diversity receiver, called a reduced-rank constrained adaptive space-time interference canceller (R-CASTIC), is proposed. The proposed scheme mitigates the disadvantages of the full-rank multiple antenna system, such as computational complexity and increased difficulty to accurately tune the algorithm. R-CASTIC performs similar to the full-rank receiver within 1 dB at the BER of 10-3 in less than 60% of total cell capacity, with only an eighth of the complexity of a full-rank receiver.

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