Unitary Space Vector Quantization Codebook Design for Precoding MIMO System
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概要
- 論文の詳細を見る
In a codebook based Precoding MIMO system, the precoding codebook significantly determines the system performance. Consequently, it is crucial to design the precoding codebook, which is related to the channel fading, antenna number, spatial correlation etc. So specific channel conditions correspond to respective optimum codebooks. In this paper, in order to obtain the optimum codebooks, a universal unitary space vector quantization (USVQ) codebook design criterion is provided, which can design the optimum codebooks for various fading and spatial correlated channels with arbitrary antenna configurations. Furthermore, the unitary space K-mean (USK) algorithm is also proposed to generate the USVQ codebook, which is iterative and convergent. Simulations show that the capacities of the precoding MIMO schemes using the USVQ codebooks are very close to those of the ideal precoding cases and outperform those of the schemes using the traditional Grassmannian codebooks and the 3GPP LTE DFT (discrete Fourier transform) codebooks.
- （社）電子情報通信学会の論文
- 2008-09-01
著者
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ZHANG Ping
Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Po
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Zhang Ping
Bupt Chn
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Li Lihua
Key Lab. Of Universal Wireless Commun. Beijing University Of Posts And Telecom. (bupt)
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WU Ping
Key Lab. of Universal Wireless Commun., Beijing University of Posts and Telecom. (BUPT)
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Wu Ping
Key Lab Of Universal Wireless Communications Ministry Of Education
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Zhang Ping
Key Laboratory Of Universal Wireless Communications Bupt
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Zhang Ping
Key Lab Of Universal Wireless Communications Ministry Of Education
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