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	Capacity and training optimization for V-BLAST system with LMMSE receiver
	Li Qiang ; Li Yunzhou ; Zhou Shidong ; Yao Yan
	2010-10-12 ; 2010-10-12
关键词	Practical Theoretical or Mathematical/ channel estimation Doppler shift fading channels least mean squares methods matrix algebra/ vertical Bell Lab layered space-time V-BLAST system LMMSE receiver linear minimum-mean-square-error receiver continuous flat fading channel random matrix theory closed-form solution training-based channel estimation Doppler frequency/ B6250 Radio links and equipment B0290F Interpolation and function approximation (numerical analysis) B0290H Linear algebra (numerical analysis) B6150D Communication channel equalisation and identification
中文摘要	The capacity of a vertical Bell Lab layered space-time (V-BLAST) system with a linear minimum-mean-square-error (LMMSE) receiver in a continuous flat fading channel was considered. The effect of the channel estimation error was analyzed to obtain an expression for the output signal-to-interference- and-noise-ratio of LMMSE receiver. Random matrix theory was then used to get a closed-form solution with the training-based channel estimate. Since the analysis uses large system analyses via the distribution law of random matrices, the results are asymptotic in nature. Simulations show that the solution is still valid for limited-scale systems. The optimization over training length and training interval to maximize the capacity are also given. The optimal results are found numerically due to the complexity of capacity formula as functions of the Doppler frequency and signal-noise-ratio.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82545]
专题	清华大学
推荐引用方式 GB/T 7714	Li Qiang,Li Yunzhou,Zhou Shidong,et al. Capacity and training optimization for V-BLAST system with LMMSE receiver[J],2010, 2010.
APA	Li Qiang,Li Yunzhou,Zhou Shidong,&Yao Yan.(2010).Capacity and training optimization for V-BLAST system with LMMSE receiver..
MLA	Li Qiang,et al."Capacity and training optimization for V-BLAST system with LMMSE receiver".(2010).

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