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	Transmitter diversity scheme for TDS-OFDM
	wang Jintao ; Pan Changyong ; Yang Zhixing
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ digital video broadcasting diversity reception Doppler shift error statistics fading channels OFDM modulation/ TDS-OFDM space-frequency transmitter diversity schemes space-time transmitter diversity schemes digital television terrestrial broadcasting fading channels frame structure time domain synchronous-orthogonal frequency division multiplexing BER Doppler shift/ B6420 Radio and television broadcasting B6120 Modulation and coding methods B6250 Radio links and equipment B0240Z Other topics in statistics
中文摘要	Space-time and space-frequency transmitter diversity schemes were developed to improve the transmission performance of digital television terrestrial broadcasting (DTTB) over fading channels. Simple transmitted signal configurations were constructed based on the frame structure of the time domain synchronous-orthogonal frequency division multiplexing (TDS-OFDM) system. The original transmission branch is maintained and the computations are greatly simple. Simulations show that the two methods both improve the BER performance over slow fading channels. At the threshold of alpha /sub BER/ = 10/sup -3/, the diversity gain exceeds 8 dB. Over fast fading channels, the space-time diversity becomes very bad because of the Doppler shift, while the space-frequency diversity gain is similar to that over slow fading channels. Therefore, the transmission performance of DTTB can be greatly improved by choosing the transmitter diversity scheme according to the channel characteristics.
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/123456789/10845]
专题	清华大学
推荐引用方式 GB/T 7714	wang Jintao,Pan Changyong,Yang Zhixing. Transmitter diversity scheme for TDS-OFDM[J],2010, 2010.
APA	wang Jintao,Pan Changyong,&Yang Zhixing.(2010).Transmitter diversity scheme for TDS-OFDM..
MLA	wang Jintao,et al."Transmitter diversity scheme for TDS-OFDM".(2010).

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