Performance limits for multi-user decorrelating detectors in DS-CDMA cellular radio systems

Steven J. Baines; Tim C. Tozer; Alister G. Burr

Performance limits for multi-user decorrelating detectors in DS-CDMA cellular radio systems

Steven J. Baines^*, Tim C. Tozer, Alister G. Burr

^*Corresponding author for this work

Electronic Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

The use of conventional matched filter detectors for CDMA systems is common, but known to be suboptimum. Performance improvements can be brought about through the use of multi-user detection techniques. A class of these, decorrelation detectors, are considered in this paper. A brief description of both conventional and decorrelating receivers is given, and the problem of `noise amplification' explained. An analytic equation for this is then introduced and used to obtain comparative capacity estimates for a range of system parameters. The `partial decorrelator' is then introduced and shown to offer better performance and lower complexity in certain situations. Finally, the effects of data modulation are discussed along with possible techniques to deal with them.

Original language	English
Pages	486-491
Number of pages	6
Publication status	Published - 1996
Event	Proceedings of the 1996 4th International Symposium on Spread Spectrum Techniques & Applications, ISSSTA'96 - Mainz, Ger Duration: 22 Sept 1996 → 25 Sept 1996

Conference

Conference	Proceedings of the 1996 4th International Symposium on Spread Spectrum Techniques & Applications, ISSSTA'96
City	Mainz, Ger
Period	22/09/96 → 25/09/96

Cite this

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title = "Performance limits for multi-user decorrelating detectors in DS-CDMA cellular radio systems",

abstract = "The use of conventional matched filter detectors for CDMA systems is common, but known to be suboptimum. Performance improvements can be brought about through the use of multi-user detection techniques. A class of these, decorrelation detectors, are considered in this paper. A brief description of both conventional and decorrelating receivers is given, and the problem of `noise amplification' explained. An analytic equation for this is then introduced and used to obtain comparative capacity estimates for a range of system parameters. The `partial decorrelator' is then introduced and shown to offer better performance and lower complexity in certain situations. Finally, the effects of data modulation are discussed along with possible techniques to deal with them.",

author = "Baines, {Steven J.} and Tozer, {Tim C.} and Burr, {Alister G.}",

year = "1996",

language = "English",

pages = "486--491",

note = "Proceedings of the 1996 4th International Symposium on Spread Spectrum Techniques & Applications, ISSSTA'96 ; Conference date: 22-09-1996 Through 25-09-1996",

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TY - CONF

T1 - Performance limits for multi-user decorrelating detectors in DS-CDMA cellular radio systems

AU - Baines, Steven J.

AU - Tozer, Tim C.

AU - Burr, Alister G.

PY - 1996

Y1 - 1996

N2 - The use of conventional matched filter detectors for CDMA systems is common, but known to be suboptimum. Performance improvements can be brought about through the use of multi-user detection techniques. A class of these, decorrelation detectors, are considered in this paper. A brief description of both conventional and decorrelating receivers is given, and the problem of `noise amplification' explained. An analytic equation for this is then introduced and used to obtain comparative capacity estimates for a range of system parameters. The `partial decorrelator' is then introduced and shown to offer better performance and lower complexity in certain situations. Finally, the effects of data modulation are discussed along with possible techniques to deal with them.

AB - The use of conventional matched filter detectors for CDMA systems is common, but known to be suboptimum. Performance improvements can be brought about through the use of multi-user detection techniques. A class of these, decorrelation detectors, are considered in this paper. A brief description of both conventional and decorrelating receivers is given, and the problem of `noise amplification' explained. An analytic equation for this is then introduced and used to obtain comparative capacity estimates for a range of system parameters. The `partial decorrelator' is then introduced and shown to offer better performance and lower complexity in certain situations. Finally, the effects of data modulation are discussed along with possible techniques to deal with them.

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M3 - Paper

AN - SCOPUS:0030393991

SP - 486

EP - 491

T2 - Proceedings of the 1996 4th International Symposium on Spread Spectrum Techniques & Applications, ISSSTA'96

Y2 - 22 September 1996 through 25 September 1996

ER -

Performance limits for multi-user decorrelating detectors in DS-CDMA cellular radio systems

Abstract

Conference

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