Title :
Multi-code multicarrier CDMA: performance analysis
Author :
Kim, Taeyoon ; Kim, Jaeweon ; Andrews, Jeffrey G. ; Rappaport, Theodore S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
A novel multi-code multicarrier code division multiple access (MC-MC-CDMA) system is proposed and analyzed in a frequency selective fading channel. By allowing each user to transmit multiple orthogonal codes, the proposed MC-MC-CDMA system can support various data rates, as required by next generation standards, and achieve spreading gain in the time domain. Multicarrier CDMA provides robustness to multipath and spreading in the frequency domain. The bit error rate of the system is analytically derived in frequency selective fading, with Gaussian noise and multiple access interference. The results show that the proposed MC-MC-CDMA system clearly outperforms both single-code multicarrier CDMA (MC-CDMA) and single-carrier multi-code CDMA in a fixed bandwidth allocation. This indicates that MC-MC-CDMA should be seriously considered for next generation cellular systems.
Keywords :
4G mobile communication; Gaussian noise; bandwidth allocation; cellular radio; code division multiple access; codes; error statistics; fading channels; radiofrequency interference; Gaussian noise; bandwidth allocation; bit error rate; cellular systems; code division multiple access; frequency domain; frequency selective fading channel; multicode multicarrier CDMA; multiple access interference; multiple orthogonal codes; Bit error rate; Code standards; Fading; Frequency conversion; Frequency domain analysis; Gaussian noise; Multiaccess communication; Multicarrier code division multiple access; Noise robustness; Performance analysis;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1312646
