WAVELET-BASED MC-CDMA COMMUNICATION SYSTEMS UNDER SCINTILLATION CHANNELS

摘要

Satellite communication channels are affected by ionospheric scintillation phenomenon, causing signal attenuation. This paper presents the performance of a Wavelet-Based Multi-Carrier Code Division Multiple Access (WB-MC-CDMA) under flat scintillation channels, in comparison with the Fourier-Based method. With scintillation, as the scintillation index S{sub}4 increases, the performance of communication system degrades. The simulation shows that the WB-MC-CDMA system offers the gain in SNR twice as much as the FB-MC-CDMA method at bit error rate = 1 × 10{sup}(-3). We also show the bit error rate performance as a function of simultaneous users.