Abstract
In this paper, we investigate the combination of Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (OFDM/OQAM) with spread spectrum Code Division Multiple Access (CDMA) transmission scheme as an alternative to classical Multicarrier-CDMA (MC-CDMA) system over multipath fading channel. The performance of real CDMA-OFDM/ OQAM transmission system with Walsh Hadamard spreading code is directly linked to the performance of OFDM/OQAM system. OFDM/OQAM performs better than CP-OFDM and CDMA-OFDM/OQAM outperforms conventional MC-CDMA thanks to the no use of the Cyclic Prefix and the good choice of the prototype filter. We present the simulation results of the performance of OFDM/OQAM system with Isotropic Orthogonal Transform Algorithm (IOTA) prototype filter compared to conventional CP-OFDM system and the performance of the combination CDMA-OFDM/OQAM compared to MCCDMA. The performance is derived by computing the Bit Error Rate (BER) as a function of the transmit signal-tonoise ratio (SNR).
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
