Analysis of uplink multicarrier successive interference cancellation CDMA system with carrier frequency offsets

Multiple access interference (MAI) and carrier frequency offsets cause limitations on bit error rate (BER) performance and capacity of asynchronous MC-CDMA systems. Multiuser detection schemes are required to overcome these limitations. In this paper, successive interference cancellation (SIC) is used in a MC-CDMA base station receiver. BER performance of this uplink MC-SIC-CDMA system is analyzed in a frequency selective Rayleigh fading taking into account the effect of carrier frequency offsets. Results show that high capacity and performance gains are achieved by SIC even in considerable frequency offsets.