Multiuser Beamforming with Limited Feedback for FDD Massive MIMO Systems

Abstract

This paper discusses the multiuser beamforming in FDD massive MIMO systems. It first introduces the feature of FDD massive MIMO systems to implement multiuser beamforming schemes. After that, considering the realistic implementation of multiuser beamforming scheme in FDD massive MIMO systems, it introduces the knowledge of channel quantization. In the main part of the paper, we introduce two traditional multiuser beamforming schemes and analyse their merits and demerits. Based on these, we propose a novel multiuser beamforming scheme to flexibly combine the merits of the traditional beamforming schemes. In the final part of the paper, we give some simulation results to compare the beamforming schemes mentioned in the paper. These simulation results show the superiority of the proposed beamforming scheme.

Development Web-Based Economic Data Application of Nu DIY Using Extreme Programming

“…From the planning results produce a multiuser concept. Zheng et al [17] have argued that multiuser is a user activity that is more than one or two people simultaneously in the use of hardware or software. So that the multiuser application of economic data collection for NU DIY members can be used by admin, user, and viewer.…”

Sistem Penilaian Rapor Peserta Didik Berbasis Web Secara Multiuser

“…Menurut Parwanti et al, (2015) multiuser adalah dalam sistem yang dibangun dapat digunakan lebih dari satu orang pengguna secara bersamaan pada server yang sama. Menurut Zheng et al, (2016) multiuser merupakan kegiatan pengguna yang lebih dari satu atau dua orang secara bersamaan dalam penggunaan suatu perangkat keras maupun perangkat lunak dalam teknologi informasi. Sehingga penerapan multiuser pada proses pengolahan nilai siswa dapat digunakan oleh admin, guru, wali kelas dan orang tua siswa.…”