Effect of Interleaved FEC Code on Wavelet Based MC-CDMA System with Alamouti STBC in Different Modulation Schemes

摘要

In this paper, the impact of Forward Error Correction (FEC) code namelyTrellis code with interleaver on the performance of wavelet based MC-CDMAwireless communication system with the implementation of Alamouti antennadiversity scheme has been investigated in terms of Bit Error Rate (BER) as afunction of Signal-to-Noise Ratio (SNR) per bit. Simulation of the system underproposed study has been done in M-ary modulation schemes (MPSK, MQAM and DPSK)over AWGN and Rayleigh fading channel incorporating Walsh Hadamard code asorthogonal spreading code to discriminate the message signal for individualuser. It is observed via computer simulation that the performance of theinterleaved coded based proposed system outperforms than that of the uncodedsystem in all modulation schemes over Rayleigh fading channel.