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	Iterative inter-carrier interference cancellation in OFDM systems
	Zhou Huiqiang ; Zhou Shidong ; Wang Jing
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ adjacent channel interference Doppler shift equalisers filtering theory interference suppression iterative methods matrix inversion OFDM modulation signal detection turbo codes/ iterative intercarrier interference cancellation OFDM systems ICI turbo code soft-in soft-out Doppler spread orthogonal frequency division multiplexing tap-filter method matched detection frequency equalizer matrix inversion/ B6250 Radio links and equipment B5230 Electromagnetic compatibility and interference B6120 Modulation and coding methods B6120B Codes B6140B Filtering methods in signal processing B6140M Signal detection B6150D Communication channel equalisation and identification B0290F Interpolation and function approximation (numerical analysis) B0290H Linear algebra (numerical analysis)
中文摘要	A matched iterative ICI cancellation algorithm with turbo code soft-in soft-out was developed to reduce inter-carrier interference due to frequency offsets and Doppler spread in orthogonal frequency division multiplexing (OFDM) systems. This algorithm uses the soft-out extrinsic information of the Turbo code as prior transmitted information by which part of the channel ICI can be subtracted from the received signals. After several iterations, the algorithm gives good results. Compared with the traditional ICI self-cancellation, the tap-filter method, and matched detection, this algorithm removes the error floor in high SNR environments. Compared with the entire frequency equalizer, this algorithm has better performance because it avoid the large matrix inversion.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11937]
专题	清华大学
推荐引用方式 GB/T 7714	Zhou Huiqiang,Zhou Shidong,Wang Jing. Iterative inter-carrier interference cancellation in OFDM systems[J],2010, 2010.
APA	Zhou Huiqiang,Zhou Shidong,&Wang Jing.(2010).Iterative inter-carrier interference cancellation in OFDM systems..
MLA	Zhou Huiqiang,et al."Iterative inter-carrier interference cancellation in OFDM systems".(2010).

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