RF Lens-Embedded Massive MIMO Systems: Fabrication Issues and Codebook Design

被引：42
|
作者：
Kwon, Taehoon [1 ]
Lim, Yeon-Geun [1 ]
Min, Byung-Wook [2 ]
Chae, Chan-Byoung [1 ]
机构：
[1] Yonsei Univ, Sch Integrated Technol, Seoul 03722, South Korea
[2] Yonsei Univ, Dept Elect & Elect Engn, Seoul 03722, South Korea
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2016年 / 64卷 / 07期
关键词：
Beam propagation method; limited channel feedback; massive multiple-input multiple-output (MIMO); multivariance codebook quantization (MVCQ) method; radio frequency (RF) lens antenna; COMPRESSED CHANNEL FEEDBACK; LIMITED FEEDBACK; WIRELESS; ARCHITECTURE; PERFORMANCE; APERTURE;
D O I：
10.1109/TMTT.2016.2574849
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, we investigate a radio frequency (RF) lens-embedded massive multiple-input multiple-output (MIMO) system and evaluate the system performance of limited feedback by utilizing a technique for generating a suitable codebook for the system. We fabricate an RF lens that operates on a 77-GHz (millimeter-wave) band. Experimental results show a proper value of amplitude gain and an appropriate focusing property. In addition, using a simple numerical technique-beam propagation method-we estimate the power profile of the RF lens and verify its accordance with experimental results. We also design a codebook-multivariance codebook quantization-for limited feedback by considering the characteristics of the RF lens antenna for massive MIMO systems. Numerical results confirm that the proposed system shows significant performance enhancement over a conventional massive MIMO system without an RF lens.
引用
收藏
页码：2256 / 2271
页数：16
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