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The Journal of The Korea Institute of Intelligent Transport Systems Vol.9 No.1 pp.34-41
복조후 전송 중계기를 이용한 협력통신 시스템에서 직교 전송 개념을 이용한 동일 채널 간섭 완화
Co-channel Interference Miitigation using Orthogonal Transmission Scheme for Cooperative Communication System with Decode-and-forward Relays
Abstract
In this paper, we analyze and simulate co-channel interference (CCI) mitigation method for cooperative communication systems employing decode-and-forward relays. In co-channel interference mitigation method, A source transmits signals that are encoded by orthogonal code. Then, the receiver can distinguish its own signals form the received signals by using the orthogonal code which is already known to the receiver. The orthogonal codes applied to this paper are orthogonal Gold codes. However, we can employ other codes, which have orthogonality, as the orthogonal code. In addition, we utilize a space time block coding (STBC) scheme for enhancing the system performance by obtaining additional array gain.
