Subspace MMSE receiver for multicarrier CDMA

Author

Namgoong, June ; Wong, Tan F. ; Lehnert, James S.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

fYear

1999

fDate

1999

Firstpage

90

Abstract

We consider subspace-based MMSE multiuser detection for multicarrier code division multiple access (MC-CDMA) in Rayleigh fading channels. The knowledge of the fading coefficients for all the carriers and the timing delay of the desired user is needed to construct the MMSE detector. A subspace-based channel estimation technique is developed to obtain the required information. Numerical results show that the proposed algorithm is robust to fading and moderate near-far situations

Keywords

Rayleigh channels; code division multiple access; delays; least mean squares methods; multiuser channels; parameter estimation; radio receivers; signal detection; timing; MC-CDMA; MMSE multiuser detection; Rayleigh fading channels; code division multiple access; fading; fading coefficients; multicarrier CDMA; near-far situations; subspace MMSE receiver; subspace-based channel estimation; timing delay; Channel estimation; Delay; Detectors; Fading; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection; Rayleigh channels; Robustness; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Conference_Location

New Orleans, LA

ISSN

1525-3511

Print_ISBN

0-7803-5668-3

Type

conf

DOI

10.1109/WCNC.1999.797792

Filename

797792