Performance of Turbo-coded MC-CDMA system based on complex wavelet packet in Rayleigh fading channel

被引：2
作者：
Yu, XB [1 ]
Bi, GG [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
来源：
2004 INTERNATIONAL CONFERENCE ON COMMUNICATION, CIRCUITS, AND SYSTEMS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEMS - VOL 2: SIGNAL PROCESSING, CIRCUITS AND SYSTEMS | 2004年
关键词：
complex wavelet packet; turbo coding; multi-carrier technique; CDMA; OFDM;
D O I：
10.1109/ICCCAS.2004.1345938
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, on the basis of analyzing the principle of multi-carrier code division multiple access (MC-CDMA) technique, by employing the optimized complex wavelet packet as multi-carrier modulation and the turbo codes as channel coding, we propose a novel MC-CDMA system based on complex wavelet packet and turbo coding, and investigate the system bit error rate (BER) performance in Rayleigh fading channel. The system can overcome the decrease of spectrum efficiency and energy of conventional MC-CDMA due to inserting cyclic prefix (CP); and make full use of the turbo codes' good capacity against fading channel to improve the BER performance further. Theoretical analysis and simulation results all show that the proposed system outperforms conventional MC-CDMA system, and its performance is superior to that of the conventional MC-CDMA with CP. Meanwhile, the application of turbo coding strengthens the system ability to cope with multi-path fading and multi-access interference (MAI) significantly.
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页码：52 / 56
页数：5
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