A novel blind diversity combining receiver for CDMA systems

Author

Bugallo, Mónica E. ; Miguez, Joaquin ; Castedo, Luis

Author_Institution

Departamento de Electronica a Sistemas, Univ. da Coruna, Spain

Volume

2

fYear

2001

fDate

2001

Firstpage

402

Abstract

This paper addresses the problem of blind multiple access interference (MAI) and intersymbol interference (ISI) suppression in direct sequence code division multiple access (DS-CDMA) systems. In order to take advantage of the diversity inherent to multipath channels, we introduce a blind RAKE multiuser receiver that proceeds in two steps. First, soft estimates of the desired user transmitted symbols are obtained from each propagation path using a bank of appropriate linearly constrained maximum likelihood linear (LCMLL) receivers. Afterwards, these estimates are adequately combined to enhance the signal to interference and noise ratio (SINR)

Keywords

AWGN; code division multiple access; diversity reception; interference suppression; intersymbol interference; maximum likelihood detection; multipath channels; radio receivers; spread spectrum communication; DS-CDMA systems; ISI suppression; MAI suppression; SINR; blind RAKE multiuser receiver; blind diversity combining receiver; direct sequence code division multiple access; intersymbol interference suppression; linearly constrained maximum likelihood linear receivers; multipath channels; multiple access interference suppression; signal to interference plus noise ratio; Direct-sequence code-division multiple access; Diversity reception; Interference constraints; Intersymbol interference; Maximum likelihood estimation; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and its Applications, Sixth International, Symposium on. 2001

Conference_Location

Kuala Lumpur

Print_ISBN

0-7803-6703-0

Type

conf

DOI

10.1109/ISSPA.2001.950165

Filename

950165