Image Transmission on MC-CDMA System over Rayleigh and AWGN Channel – comparison study

摘要

The Multi Carrier Code Division Multiple Access (MC-CDMA) strategy was developed in response to rising demand for system capacity, higher data rates, and multimedia services. It's essentially a combination of CDMA and OFDM schemes. As a result, MC-CDMA takes the advantages of both CDMA and OFDM technologies. CDMA improves bandwidth consumption performance, whereas OFDM helps to minimize Inter Symbol Interference (ISI) and multipath fading. This paper suggests a method for evaluating the performance of MC-CDMA when image transmission is involved. Both BER and SNR are used to test the results. The Bit Error Rate (BER) output of the MC-CDMA method is then examined using MATLAB for various modulation techniques. The calculations are taken with Additive White Gaussian Noise over a Rayleigh fading channel (AWGN). For distributing, the Walsh-Hadamard (W-H) code is used because it eliminates Multiple Access Interference (MAI) (MAI). In terms of BER, it can be shown that BPSK performs better than QPSK.