CTH13-1: Design of Multiplexed Coding for User Cooperation

We consider the multiplexed coding design for cooperative communications. The ideal multiplexed coding, which outperforms the superposition coding in theory, is difficult to implement with practical error-correction codes. We therefore introduce a partially multiplexed (PMP) coding scheme to approach the performance of fully multiplexed coding scheme. We then design the PMP coding using irregular repeat accumulate (IRA) codes. We also present a practical superposition coding scheme with two decoding methods. The outage analysis shows that all these schemes perform very close to lower cooperation bound. The simulation results demonstrate that both PMP and practical superposition block Markov coding for two-user cooperation provide significant gain over the non-cooperative system.