Performance analysis of OMC-CDMA on two-ray multipath fading channels

Orthogonal multi-carrier-code division multiple access (OMC-CDMA) is a scheme that combines multi-carrier modulation with direct sequence-spread spectrum (DS-SS) and allows the efficient utilization of the bandwidth, the resistance against frequency selective fading in broadband mobile radio channels and the efficient implementation by the FFT algorithm. We analyze the bit error probability (BER) of OMC-CDMA on two-ray Rayleigh multipath fading channels and compare the BER performance of OMC-CDMA according to the number of users and subcarriers, attenuation factor of the delayed path, the delay time. We found that the attenuation factor of the delayed path is more sensitive to the BER of OMC-CDMA than the delay time.