LIMITED FEEDBACK SCHEME BASED ON ADAPTIVE CODEBOOK FOR SPATIALLY AND TEMPORALLY CORRELATED MIMO CHANNELS

被引：0

作者：

Huang, Yu ^{[1
]}

Ji, Xiaodong ^{[1
]}

Peng, Mugen ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Minist Educ, Wireless Signal Proc & Network Lab, Beijing 100876, Peoples R China

来源：

PROCEEDINGS OF 2011 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY AND APPLICATION, ICCTA2011 | 2011年

关键词：

precoding; adaptive codebook; spatially and temporally correlation; FINITE RATE FEEDBACK; WIRELESS SYSTEMS; CAPACITY;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the problem of limited feedback for spatially and temporally correlated multiple input multiple output (MIMO) channels is addressed. We analyze the impact on the channel vectors made by the spatial and temporal correlation with the concept that the channel vectors fall on the spherical cap. We develop the probability that the channel vectors are distributed axisymmetrically on the hypersphere and obtain the adaptive codebook design criteria. A novel limited feedback scheme based on adaptive codebook is proposed following the principle that the codebook should be efficiently adapted to the underlying long term channel statistics. Simulation results will be provided to demonstrate that the proposed limited feedback scheme outperforms the fixed codebook for spatially and temporally correlated MIMO channels.

引用

页码：192 / 196

页数：5

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