Title :
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.
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;
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
DOI :
10.1109/ITST.2006.288896
