Effective Transmission Scheme for Cooperative PB/MC-CDMA System

This paper proposes cooperative coding using an interference cancellation technique to improve the performance of the PB/MC-CDMA system. The cooperation of multiple relay nodes which help to advance the source signal are considered to be the multiple transmit antennas within this system. However, if errors occur at relay nodes due to the frequency selective fading channel, then error propagation leads to degradation of system performance when the decoded signal is retransmitted to the destination. In order to solve this problem, the interference canceller is employed at the relay nodes when the source signals within the proposed system are decoded. The simulation results show that better performance is achievable when the proposed scheme is used in the partial block multi-carrier code division multiple access (PB/MC-CDMA) system.