Title :
Performance analysis for synchronous OFDM-CDMA with joint frequency-time spreading
Author :
Zheng, Kan ; Zeng, Guoyan ; Lei, Lei ; Wang, Wenbo
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
OFDM-CDMA systems have been regarded as the most promising candidates for future mobile communication systems. This paper explores a novel OFDM-CDMA system with joint time-frequency spreading method proposed. The average bit error probability of this system using maximum-ratio combining (MRC) is derived in a frequency-selective fading channel. Numerical analysis and simulation results indicate in detail that the proposed system outperforms the conventional MC-CDMA system.
Keywords :
OFDM modulation; code division multiple access; diversity reception; error statistics; fading channels; indoor radio; mobile radio; numerical analysis; time-frequency analysis; MRC; OFDM-CDMA system; bit error probability; code division multiple access; frequency-selective fading channel; joint time-frequency spreading method; maximum-ratio combining; mobile communication system; orthogonal frequency division multiplexing; Fading; Frequency domain analysis; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; Numerical simulation; OFDM; Performance analysis; Time frequency analysis; Transmitters;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313157
