다중 사용자 OFDM/MC-CDMA를 위한 비선형 검파 방식

In this paper, a Walsh-Hadamard Codes assisted OFDM Receiver that can be applied SIC and PIC is proposed. The OFDM Receiver is better than conventional plain OFDM in BER performance, But Computational complexity is increased as BER performance improve for the proposed receiver. So, this problem lead to Trade-off between BER performance and computational complexity. The proposed sustem can be a good example of Non-linear Detection Technique for Multi-User OFDM/MC-COMA.