RF Lens-Embedded Massive MIMO Systems: Fabrication Issues and Codebook Design
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 (mmWave) 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 (BPM)--we estimate the power profile of the RF lens and verify its accordance with experimental results. We also design a codebook--multi-variance codebook quantization (MVCQ)--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.
Cite
@article{arxiv.1510.00252,
title = {RF Lens-Embedded Massive MIMO Systems: Fabrication Issues and Codebook Design},
author = {Taehoon Kwon and Yeon-Geun Lim and Byung-Wook Min and Chan-Byoung Chae},
journal= {arXiv preprint arXiv:1510.00252},
year = {2016}
}