Work

A Codebook Design for FD-MIMO Systems With Multi-Panel Array

Year: 2022

Type: article

Abstract: In this work, we study codebook designs for full-dimension multiple-input multiple-output (FD-MIMO) systems with a multi-panel array (MPA). We propose novel codebooks which allow precise beam structures for MPA FD-MIMO systems by investigating the physical properties and alignments of the panels. We specifically exploit the characteristic that a group of antennas in a vertical direction exhibit more correlation than those in a horizontal direction. This enables an economical use of feedback bits while constructing finer beams compared to conventional codebooks. The codebook is further improved by dynamically allocating the feedback bits on multiple parts such as beam amplitude and co-phasing coefficients using reinforcement learning. The numerical results confirm the effectiveness of the proposed approach in terms of both performance and computational complexity.

Source: IEEE Transactions on Vehicular Technology

DOI: 10.1109/tvt.2022.3195529

Authors: Zhilin Fu, Sangwon Hwang, Jihwan Moon, Haibao Ren, Inkyu Lee

Institutions: Korea University, Hanbat National University, Huawei Technologies (China)

Language: English

Topic: Millimeter-Wave Propagation and Modeling

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Ministry of Education, Libya, National Research Foundation of Korea

Awards: G4356421497, G7083169588