Results 41 to 50 of about 19,857 (226)
Design Parameters for Massive Communication Systems Under Energy-Efficient Polynomial Precoder
IEEE Access, 2022 Massive multiple-input multiple output (MIMO) systems have been introduced as a resolution for next generation cellular systems. The complexity of computing the precoding in massive MIMO is increased.
Mohamed G. El-Mashed +3 more
doaj +1 more source
Ubiquitous cell-free Massive MIMO communications
EURASIP Journal on Wireless Communications and Networking, 2019 Since the first cellular networks were trialled in the 1970s, we have witnessed an incredible wireless revolution. From 1G to 4G, the massive traffic growth has been managed by a combination of wider bandwidths, refined radio interfaces, and network ...
Giovanni Interdonato +4 more
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 17-33, January/February 2026.In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak +3 more
wiley +1 more source
A Simulation Framework for Multiple-Antenna Terminals in 5G Massive MIMO Systems
IEEE Access, 2017 The recent interest in massive multiple in multiple out (MIMO) has spurred intensive work on massive MIMO channel modeling in the contemporary literature. However, current models fail to take the characteristics of terminal antennas into account.
Erik L. Bengtsson +5 more
doaj +1 more source
Robust Spectral and Energy Efficiency Tradeoff for RIS‐Aided Multi‐User Communication
IET Communications, Volume 20, Issue 1, January/December 2026.In this work, an RIS‐aided multi‐user network with imperfect CSI is investigated. Correspondingly, we focus on balancing SE and EE through the collaborative design of the base station (BS)'s precoding matrix and the RIS's phase shifts, which consider the transmit power budget and the channel uncertainties constraints.
Xiandeng He, Yilin Wang, Shun Zhang
wiley +1 more source
Massive MIMO for Full-Duplex Cellular Two-Way Relay Network: A Spectral Efficiency Study
IEEE Access, 2017 This paper presents the new analysis of the applications of massive multiple-input-multiple-output (MIMO) in full-duplex (FD) cellular two-way relay networks, and sheds valuable insights on the interactions between massive MIMO, and relay and duplex ...
Zhaoxi Fang +4 more
doaj +1 more source
Cell-Free Massive MIMO with Energy-Efficient Downlink Operation in Industrial IoT
Mathematics, 2022 Cell-free massive Multi-input Multi-output (MIMO) can offer higher spectral efficiency compared with cellular massive MIMO by providing services to users through the collaboration of distributed APs, and cell-free massive MIMO systems with distributed ...
Xiaomin Chen +4 more
doaj +1 more source
Additively manufactured flexible on-package phased array antennas for 5G/mmWave wearable and conformal digital twin and massive MIMO applications [PDF]
, 2023 Kexin Hu +3 more
openalex +1 more source
A Massive Grant‐Free Random Access Scheme Based on Spectrum Sensing and Preamble Delay
IET Communications, Volume 20, Issue 1, January/December 2026.This paper introduces cognitive radio (CR) and preamble delay (PD) to reduce access collisions, together with non‐orthogonal multiple access (NOMA) to improve spectrum efficiency, and thus proposes an efficient CR‐NOMA‐PD‐based massive grant‐free random multiple access scheme.
Jing Zhang +5 more
wiley +1 more source
Massive OAM‐MIMO transmission scheme for 5G networks and beyond
IET Communications, 2021 The combination of orbital angular momentum (OAM) and massive multiple‐input multiple‐output (MIMO) brings the possibility of almost infinite transmission capability, which may be applied in the coming 5th generation networks and beyond. In this study, a
Fuchun Mao +5 more
doaj +1 more source