Title :
Full-Diversity Spreading Codes for Multicarrier CDMA Systems
Author :
Jiang, Wei ; Li, Daoben
Author_Institution :
Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun.
Abstract :
The paper proposes a method to construct full-diversity spreading codes for the multicarrier CDMA (MC-CDMA) systems based on evaluation of the maximum-likelihood multi-user detection (ML-MUD) performance in the frequency selective fading channels. The codes are constructed by offsetting the phase of conventional orthogonal codes and can achieve the maximum diversity gain with ML-MUD even for full-loaded systems. Simulation results show that the performance of single-user detectors can also be improved by the proposed method
Keywords :
code division multiple access; diversity reception; fading channels; maximum likelihood detection; multiuser detection; ML-MUD; frequency selective fading channel; full-diversity spreading code; maximum-likelihood multiuser detection; multicarrier CDMA system; Diversity methods; Downlink; Fading; Frequency; Gold; Maximum likelihood detection; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection; Rayleigh channels;
Conference_Titel :
Military Communications Conference, 2006. MILCOM 2006. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
1-4244-0617-X
Electronic_ISBN :
1-4244-0618-8
DOI :
10.1109/MILCOM.2006.302488
