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Co-channel Interference Mitigation using Orthogonal Transmission Scheme for Cooperative Communication System with Decode-and-Forward Relays  

Kim, Eun-Cheol (광운대학교 전파공학과)
Seo, Sung-Il (광운대학교 전파공학과)
Kim, Jin-Young (광운대학교 전파공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.9, no.1, 2010 , pp. 34-41 More about this Journal
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.
Keywords
Co-channel interference; cooperative communication; interference mitigation; orthogonal transmission; space time block code (STBC);
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