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Title: RF Lens-Embedded Massive MIMO Systems: Fabrication Issues and Codebook Design
Authors: Taehoon Kwon
Yeon-Geun Lim
Byung-Wook Min
Chan-Byoung Chae
Keywords: massive multiple-input multiple-output (MIMO)|radio frequency (RF) lens antenna|limited channel feedback|multivariance codebook quantization (MVCQ) method|Beam propagation method
Issue Date: 2016
Publisher: IEEE
Abstract: 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.
URI: http://localhost/handle/Hannan/154344
ISSN: 0018-9480
1557-9670
Format: 2256;2271
Type Of Material: Article
Appears in Collections:2016

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