Computationally Efficient Signal Detection for STBC-OFDM Systems in Fast-Fading Channels(Wireless Communication Technologies)
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概要
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In this letter, we propose a novel signal detection method that matches maximum likelihood (ML) performance but requires much less computational complexity than ML detection. When the well-known linear decoding method is used for space-time block coded (STBC) OFDM systems in fast-fading channels, co-channel interference (CCI) as well as inter-carrier interference (ICI) occurs. A maximum likelihood (ML) method can be employed to deal with the CCI; however, its computational complexity is very high. In this letter, we propose a signal detection method for orthogonal space-time coded OFDM systems that achieves the identical error performance as the ML method, but requires much less computational complexity.
- 2007-10-01
著者
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CHO Yong
School of Environmental System Engineering, Pukyong National University
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Cho Yong
School Of Chemical Engineering Seoul National University
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Kim Jaekwon
Computer And Telecommun. Engineering Division Yonsei Univ.
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Kim Jaekwon
Computer And Telecom. Engineering Yonsei Univ.
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LEE Kyu
School of Electrical and Electronic Engineering, Chung-Ang Univ.
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Lee Kyu
School Of Electrical And Electronic Engineering Chung-ang Univ.
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Kim Jaekwon
Computer & Telecommunications Engineering Division Yonsei University
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Cho Yong
School of Chemical and Biological Engineering, Seoul National University, San 56-1, Shillim-dong, Kwanak-ku, Seoul 151-744, Korea
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