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	Signal reconstruction of channel spectral nulls in TDS-OFDM systems
	Wang Jian ; Yang Zhixing ; Pan Changyong ; Wang Jun
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ computational complexity fast Fourier transforms forward error correction interleaved codes modulation coding OFDM modulation signal reconstruction time-domain analysis wireless channels/ signal reconstruction wireless channel spectral nulls time domain synchronous system TDS-OFDM system orthogonal frequency-division multiplexing forward error correction coding long interleaving computational complexity fast Fourier transform FFT algorithm overlap-add scheme OLA/ B6120B Codes B6250 Radio links and equipment B6140 Signal processing and detection B0220 Mathematical analysis B0230 Integral transforms
中文摘要	The performance of orthogonal frequency-division multiplexing (OFDM) systems may severely deteriorate when passing through wireless channels with spectral nulls. Current OFDM systems reduce this performance loss by incorporating powerful forward error correction coding with very long interleaving. This paper describes a signal reconstruction scheme, which has the same computational complexity as the fast Fourier transform (FFT) algorithm, for time domain synchronous orthogonal frequency-division multiplex (TDS-OFDM) to reconstruct the missing data due to the channel spectral nulls without requiring any changes at the transmitter. Simulation results demonstrate that significant performance improvement can be achieved using the method over the so-called overlap and add (OLA) scheme.
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/123456789/11467]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Jian,Yang Zhixing,Pan Changyong,et al. Signal reconstruction of channel spectral nulls in TDS-OFDM systems[J],2010, 2010.
APA	Wang Jian,Yang Zhixing,Pan Changyong,&Wang Jun.(2010).Signal reconstruction of channel spectral nulls in TDS-OFDM systems..
MLA	Wang Jian,et al."Signal reconstruction of channel spectral nulls in TDS-OFDM systems".(2010).

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