Acta Metallurgica Sinica(English letters) ›› 2008, Vol. 15 ›› Issue (1): 23-27.doi: 1005-8885 (2008) 01-0023-05

• Wireless • 上一篇    下一篇

Unitary space vector quantization codebook design for spatial correlated limited feedback MIMO system

武平;李立华;张平   

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  • 收稿日期:2007-05-21 修回日期:1900-01-01 出版日期:2008-03-31
  • 通讯作者: 武平

Unitary space vector quantization codebook design for spatial correlated limited feedback MIMO system

  1. Key Laboratory of Universal Wireless Communications (Beijing University of Posts and Telecommunications), Ministry of Education, Wireless Technology Innovation Institute (WTI), Beijing 100876, China
  • Received:2007-05-21 Revised:1900-01-01 Online:2008-03-31
  • Contact: Wu Ping

摘要:

In the transmitting, beamforming, and receiving combing (TBRC) MIMO system, a codebook based feedback strategy is usually used to provide the transmitter with the beamforming vector. The adopted codebook affects the system performance considerably. Therefore, the codebook design is a key technology in the TBRC MIMO system. In this article, the unitary space vector quantization (USVQ) codebook design criterion is proposed to design optimal codebooks for various spatial correlated MIMO channels. And the unitary space K-mean (USK) codebook generating algorithm is provided to generate the USVQ codebooks. Simulations show that the capacities of the feedback based TBRC systems using USVQ codebooks are very close to those of the ideal cases.

关键词:

USVQ,;multiple-input;multiple-output;(MIMO);system,;TBRC

Abstract:

In the transmitting, beamforming, and receiving combing (TBRC) MIMO system, a codebook based feedback strategy is usually used to provide the transmitter with the beamforming vector. The adopted codebook affects the system performance considerably. Therefore, the codebook design is a key technology in the TBRC MIMO system. In this article, the unitary space vector quantization (USVQ) codebook design criterion is proposed to design optimal codebooks for various spatial correlated MIMO channels. And the unitary space K-mean (USK) codebook generating algorithm is provided to generate the USVQ codebooks. Simulations show that the capacities of the feedback based TBRC systems using USVQ codebooks are very close to those of the ideal cases.

Key words:

USVQ;multiple-input multiple-output (MIMO) system;TBRC

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