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All Journal International Journal of Electrical and Computer Engineering
Kien Truong
Fulbright University Vietnam
Computer Science & IT Electrical & Electronics Engineering

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Beam division multiple access for millimeter wave massive MIMO: Hybrid zero-forcing beamforming with user selection Hong Son Vu; Kien Truong; Minh Thuy Le
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 1: February 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i1.pp445-452

Abstract

Massive multiple-input multiple-output (MIMO) systems are considered a promising solution to minimize multiuser interference (MUI) based on simple precoding techniques with a massive antenna array at a base station (BS). This paper presents a novel approach of beam division multiple access (BDMA) which BS transmit signals to multiusers at the same time via different beams based on hybrid beamforming and user-beam schedule. With the selection of users whose steering vectors are orthogonal to each other, interference between users is significantly improved. While, the efficiency spectrum of proposed scheme reaches to the performance of fully digital solutions, the multiuser interference is considerably reduced.
Co-Authors Hong Son Vu Minh Thuy Le