Simulation of proposed 2D-MC-CDMA system using combined transform and phase matrix

الملخص EN

-In this paper, a Two Dimensional Multi-Carrier Code Division Multiple Access (2D-MC-CDMA) system based on Two Dimensional Orthogonal Frequency Division Multiplexing (2D-OFDM) system was suggested to improve the Bit Error Rate (BER) performance for MC-CDMA system.

The Two Dimensional Fast Fourier Transform (2D-FFT) that used in (2D-OFDM) system is replaced with Two Dimensional Combined Transform (2D-CT).

The CT is a combination between Wavelet Transform (WT) and Multi-Wavelet Transform (MWT).

Also, each row and column in the two dimensional transmitted signal is multiplied by generated Phase Matrix (PM) and by the Inverse of Phase Matrix (IPM) in the received signal.

Simulation results are done in three different types of channels: Additive White Gaussian Noise (AWGN), flat fading and selective fading channels.

The results show that the 2D-MC-CDMA system based on 2D-MT achieves better performance than the conventional MC-CDMA (1D-MC-CDMA) system based on FFT, MWT and In-Place Wavelet Transform (IP-WT) respectively in all channels types.