Blind multiuser detection in W-CDMA systems with large delay spread

Nicholas D. Sidiropoulos, Goran Z. Dimić

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


A two-stage blind multiuser antenna array detector is proposed for the uplink of a wideband CDMA system subject to large delay spread. It is shown that it is possible to identify the symbols of all users without knowledge of their codes, channels, or directions. The key idea is that low-rank decomposition of the three-dimensional (3-D) received data array can reduce the FIR multiple-input multiple-output (FIR-MIMO) CDMA problem into standard FIR single-input multiple-output (FIR-SIMO) problems.

Original languageEnglish (US)
Pages (from-to)87-89
Number of pages3
JournalIEEE Signal Processing Letters
Issue number3
StatePublished - Mar 2001

Bibliographical note

Funding Information:
Manuscript received June 16, 2000. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Y. Hua. This work was supported in part by NSF/CAREER CCR-9733540 and NSF/Wireless IT&Networks CCR-9979295.


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