Performance study of space-time trellis coded MC-CDMA system employing different detection techniques

Bansal, Lokesh Kumar; Trivedi, Aditya

doi:10.1109/wcsn.2008.4772698

Cited by 6 publications

(1 citation statement)

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“…Next, the encoded data is applied to interleaver, and then mapped according to the desired signal constellation. Finally at each time interval, the signals are modulated and transmitted simultaneously over different transmit antennas [13]- [15]. Using Baye's rule, the above equation can be reformulated as…”

Section: N N P(a = -)= -P(a = + )mentioning

confidence: 99%

Implementation of Space-Time Turbo Coded MC-CDMA Systems

Bansal¹,

Trivedi²

2012

IJCEE

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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.

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Section: N N P(a = -)= -P(a = + )mentioning

confidence: 99%