[1] Yu Xiangbin, Bi Guangguo(Information and Communication Engineering Postdoctoral Station, Nanjing University of Aeronautics and Astronautics, Nanjing 00, et al. Performance of STBC-MC-CDMA systembased on complex wavelet packet and turbo coding [J]. Journal of Southeast University (English Edition), 2005, 21 (4): 398-404. [doi:10.3969/j.issn.1003-7985.2005.04.005]
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Performance of STBC-MC-CDMA systembased on complex wavelet packet and turbo coding(
)
基于复小波包和turbo码的STBC-MC-CDMA系统及其性能
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 21
- Issue:
- 2005 4
- Page:
- 398-404
- Research Field:
- Information and Communication Engineering
- Publishing date:
- 2005-12-30
Info
- Title:
- Performance of STBC-MC-CDMA systembased on complex wavelet packet and turbo coding
- 基于复小波包和turbo码的STBC-MC-CDMA系统及其性能
- Author(s):
- Yu Xiangbin1; Bi Guangguo2(1Information and Communication Engineering Postdoctoral Station; Nanjing University of Aeronautics and Astronautics; Nanjing 210016; China)
- 2 National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
- Keywords:
- multi-carrier technique; complex wavelet packet; space-time block code; code division multiple access; turbo coding
- PACS:
- TN911.5
- DOI:
- 10.3969/j.issn.1003-7985.2005.04.005
- Abstract:
- On the basis of analyzing the principle of the space-time coding technique and the multi-carrier code division multiple access(MC-CDMA)technique, adopting the turbo codes as channel coding and the optimized complex wavelet packet as multi-carrier modulation, a novel space-time block coded the MC-CDMA system based on complex wavelet packet and turbo coding is proposed, and the system bit error rate(BER)performance in the Rayleigh fading channel is investigated.The system can make full use of space-time block codes’ transmit diversity and turbo codes’ good ability against fading channel to improve the BER performance significantly, and it can also avoid the decrease of spectrum efficiency of conventional MC-CDMA due to inserting cyclic prefix(CP)by utilizing superior characteristics of the optimized complex wavelet packet.Simulation results show that the proposed space-time block coded MC-CDMA system based on the complex wavelet packet performs better than the conventional space-time block coded MC-CDMA(STBC-MC-CDMA)system, and slightly outperforms the STBC-MC-CDMA with CP.Moreover, the application of the space-time block coding technique concatenated with turbo codes strengthens the system ability to combat various interferences in fading channel further.
- 在分析空时编码技术和多载波CDMA技术原理的基础上, 采用turbo编码作为信道编码以及优化的复小波包作为多载波调制, 提出一种基于复小波包和turbo码的空时分组编码的MC-CDMA系统, 研究了其在瑞利衰落信道下的误码率性能.该系统能充分利用空时分组编码的发送分集和turbo码的良好抗信道衰落能力显著提高系统性能, 而且还能利用优化复小波包的优良特性避免通常MC-CDMA系统由于插入循环前缀(CP)所带来频谱效率的降低.仿真结果表明, 基于复小波包的空时分组编码的MC-CDMA系统要好于空时分组编码的通常MC-CDMA(STBC-MC-CDMA)系统, 略好于采用CP的STBC-MC-CDMA系统;级联turbo码的空时编码技术的应用进一步增强了系统抗衰落信道下的各种干扰能力.
References:
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Memo
- Memo:
- Biography: Yu Xiangbin(1970—), male, doctor, yxbxwy@nuaa.edu.cn.