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A bootstrap multi-user detector for CDMA based on Tikhonov regularization

Research output: Contribution to journalArticle

Original languageEnglish
Pages69 - 72
Number of pages3
JournalIEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. (ICASSP '03)
Journal publication dateApr 2003
Volume4
StatePublished

Abstract

A novel multi-user detection (MUD) technique for CDMA systems is introduced. The new method is well suited for cases in which the code cross correlation matrix is ill-conditioned. In practice, this case coincides with having code lengths approximately equal to the number of users - a desirable condition in terms of bandwidth efficiency. Our approach employs an iterative formulation of a well-known regularization method for linear inverse problems, which is suited to the MUD problem. The technique allows knowledge of the finite set in which the solution belongs to be exploited in a computationally efficient manner in order to improve the quality of the estimate iteratively.

Additional information

Publisher: Institute of Electrical and Electronics Engineers (IEEE) Name and Venue of Conference: International Conference on Acoustics, Speech, and Signal Processing, 2003 (ICASSP '03) Rose publication type: Conference contribution Sponsorship: C Kasparis would like to thank QinetiQ Ltd. and EPSRC for funding his research at the University of Bristol. Terms of use: Copyright © 2003 IEEE. Reprinted from Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • Multi-User Detection (MUD), bootstrap, CDMA

Event

International Conference on Acoustics, Speech, and Signal Processing, 2003

Abbreviated TitleICASSP '03
Duration1 Apr 2003 → …
CountryChina
CityHong Kong

Event: Conference

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