Frequency-Domain Fractionally-Spaced MMSE Multiuser Receiver for Multicarrier CDMA

Author

Shi, Qinghua ; Guan, Yong Liang ; Law, Choi Look

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.

fYear

2006

fDate

38869

Firstpage

1342

Lastpage

1345

Abstract

An important problem for multicarrier systems is frequency offset between a transmitter and receiver, which can substantially deteriorate system performance. In this paper, we propose a frequency-domain fractionally-spaced minimum mean square error (FDFS-MMSE) multiuser detector for multicarrier code-division multiple-access (MC-CDMA) systems. Numerical results show that with frequency-domain oversampling by a factor of two, the proposed FDFS-MMSE receiver can combat frequency offset efficiently, in addition to its near-far resistance and MAI elimination capability

Keywords

code division multiple access; frequency-domain analysis; interference suppression; least mean squares methods; multiuser detection; radio receivers; signal sampling; FDFS-MMSE multiuser detector; MAI elimination capability; MC-CDMA system; fractionally-spaced minimum mean square error; frequency-domain analysis; multicarrier code-division multiple-access; multiple access interference; oversampling; receiver; Detectors; Downlink; Frequency; Mean square error methods; Multiaccess communication; Multicarrier code division multiple access; OFDM; Robustness; Time domain analysis; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

ITS Telecommunications Proceedings, 2006 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

0-7803-9587-5

Electronic_ISBN

0-7803-9587-5

Type

conf

DOI

10.1109/ITST.2006.288896

Filename

4068837