Blind MMSE multipath combining for long-code CDMA systems

Author

Zhang, Yongpeng ; Zhang, Ruifeng

Author_Institution

Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA

Volume

4

fYear

2003

fDate

6-10 April 2003

Abstract

A blind MMSE multipath combining method for a RAKE receiver is proposed. The method make use of the data before and after the onset of the desired user´s transmission. By performing generalized eigendecomposition of the autocorrelation matrices of the post-RAKE signals in the two interval, an MMSE combiner for the desired user signal can be obtained without the need of the channel state information. The method does not require a precise model nor assume whiteness of the interference. An adaptive algorithm is also developed.

Keywords

adaptive estimation; code division multiple access; correlation methods; eigenvalues and eigenfunctions; least mean squares methods; matrix algebra; multipath channels; radio receivers; MMSE; RAKE receiver; adaptive algorithm; autocorrelation matrices; blind multipath combining; generalized eigendecomposition; long-code CDMA systems; post-RAKE signals; Adaptive algorithm; Autocorrelation; Diversity reception; Fading; Interference; Matched filters; Multiaccess communication; Multipath channels; Multiuser detection; RAKE receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1202560

Filename

1202560