Comparative Analysis of MC-CDMA System with Wavelet Packet Based MC-CDMA System Using Different Modulation Techniques

Abstract

Recently conventional Multi-Carrier Code Division Multiple Access (MC-CDMA) techniques attract more attention of researcher's due to its high frequency spectrum efficiency and high data rate transmission. MC-CDMA is a Multiple access scheme used in Orthogonal Frequency Division Multiplexing (OFDM) based telecommunication systems, allowing the system to support multiple users at the same time. Specialized wavelet packet waveform set is used as the modulation waveform in a multicarrier CDMA system. The wavelet packet waveform is the waveform generated from a full binary wavelet packet tree. This paper presents a design of conventional MC CDMA and wavelet packets based MC CDMA and their comparison on the basis of performance matrices. The performance parameter used in this comparison is Bit Error Rate (BER). The spectral analysis is done by wavelet.