Low-rank MMSE detector for synchronous DS-CDMA

Xiaodong Cai, Hongya Ge, Ali N. Akansu

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The low-rank minimum mean-squared error (MMSE) detector for direct sequence (DS) spread-spectrum code-division multiple-access (CDMA) is proposed in this paper. The low-rank linear MMSE detector lies in a subspace of the signal space. We demonstrate that when the dimension of the signal space is lower than the processing gain and the MMSE detector is obtained using the estimated covariance matrix, the low-rank MMSE detector can perform better than the full rank MMSE detector. A subspace tracking algorithm that tracks both the rank and the signal subspace is used to implement the low-rank MMSE detector adaptively.

Original languageEnglish (US)
Title of host publicationConference Record of the Asilomar Conference on Signals, Systems and Computers
PublisherIEEE
Pages940-944
Number of pages5
Volume2
StatePublished - 1999
Externally publishedYes

Fingerprint

Code division multiple access
Detectors
Covariance matrix
Processing

ASJC Scopus subject areas

  • Hardware and Architecture
  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Cai, X., Ge, H., & Akansu, A. N. (1999). Low-rank MMSE detector for synchronous DS-CDMA. In Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 2, pp. 940-944). IEEE.

Low-rank MMSE detector for synchronous DS-CDMA. / Cai, Xiaodong; Ge, Hongya; Akansu, Ali N.

Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2 IEEE, 1999. p. 940-944.

Research output: Chapter in Book/Report/Conference proceedingChapter

Cai, X, Ge, H & Akansu, AN 1999, Low-rank MMSE detector for synchronous DS-CDMA. in Conference Record of the Asilomar Conference on Signals, Systems and Computers. vol. 2, IEEE, pp. 940-944.
Cai X, Ge H, Akansu AN. Low-rank MMSE detector for synchronous DS-CDMA. In Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. IEEE. 1999. p. 940-944
Cai, Xiaodong ; Ge, Hongya ; Akansu, Ali N. / Low-rank MMSE detector for synchronous DS-CDMA. Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2 IEEE, 1999. pp. 940-944
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