Volume 4 Number 6 (Dec. 2012)
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IJCEE 2012 Vol.4(6): 896-899 ISSN: 1793-8163 DOI: 10.7763/IJCEE.2012.V4.642

Implementation of Space-Time Turbo Coded MC-CDMA Systems

Lokesh Kumar Bansal and Aditya Trivedi
Abstract—In this paper, the performances of space-time turbo-code (STTuC) and space-time trellis code (STTC) in conjunction with multi-carrier code-division multiple-access (MC-CDMA) systems are evaluated. The minimum mean-square error (MMSE) detection technique is used with multiple input multiple output (MIMO) antenna diversity in quasi static fading channel. The symbol error rate (SER) is obtained using simulation by employing maximum a posteriori (MAP) decoding technique for turbo code and Viterbi algorithm for trellis code system. It is observed that the STTuC-MC-CDMA system performs better then STTC-MC-CDMA system. It is also noted that by increasing the number of iterations the performance gain can be increased up to a certain limit. On the other hand, this improvement in performance comes at the cost of increased computational complexity.

Index Terms—MAP decoder, MIMO, MMSE, Space-time turbo-code.

L. K. Bansal is with the Nikhil Institute of Engineering and Management, Mathura, India (e-mail: lokesh_bansal@rediffmail.com).
A. Trivedi is with the Department of Information and Communication Technology, ABV-Indian Institute of Information Technology and Management, Gwalior, India (email: atrivedi@iiitm.ac.in).

Cite: Lokesh Kumar Bansal and Aditya Trivedi, "Implementation of Space-Time Turbo Coded MC-CDMA Systems," International Journal of Computer and Electrical Engineering vol. 4, no. 6, pp. 896-899, 2012.

General Information

ISSN: 1793-8163
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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