Results 21 to 30 of about 10,463 (206)

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

open access: yesIET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh   +4 more
wiley   +1 more source

Scalable Cell-Free Massive MIMO Systems [PDF]

open access: yesIEEE Transactions on Communications, 2020
To appear in IEEE Transactions on Communications, 14 pages, 6 ...
Emil Bjornson, Luca Sanguinetti
openaire   +2 more sources

Spectral Efficiency of Network-Assisted Full-Duplex for Cell-Free Massive MIMO System Under Pilot Contamination

open access: yesIEEE Access, 2021
A cell-free massive multiple-input multiple-output (MIMO) network-assisted full-duplex (NAFD) system has been proposed to satisfy the exploding demand of higher data transmission speed and more efficient communication.
Yanfeng Hu   +3 more
doaj   +1 more source

Clustered Cell-Free Massive MIMO [PDF]

open access: yes2018 IEEE Globecom Workshops (GC Wkshps), 2018
This paper introduces a novel technique, clustered cell-free massive-MIMO (C2F-M-MIMO), that generalizes the recently proposed cell-free massive MIMO (CF-M-MIMO) concept by optimizing the connectivity pattern among access points (APs) and mobile stations (MSs).
Felip Riera-Palou   +3 more
openaire   +1 more source

Cell-Free Massive MIMO Surveillance Systems

open access: yesGLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023
Wireless surveillance, in which untrusted communications links are proactively monitored by legitimate agencies, has started to garner a lot of interest for enhancing the national security. In this paper, we propose a new cell-free massive multiple-input multiple-output (CF-mMIMO) wireless surveillance system, where a large number of distributed multi ...
Mobini, Zahra   +3 more
openaire   +3 more sources

Spectral Efficiency Improvement and Power Control Optimization of Massive MIMO Networks

open access: yesIEEE Access, 2021
Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication.
Xiu Zhang, Hao Qi, Xin Zhang, Liang Han
doaj   +1 more source

Uplink Performance of Cell-Free Massive MIMO with Access Point Selections [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2018
Cell-free massive multiple-input multiple-output (MIMO), in which a massive number of access points (APs) distributed over a large area serve a smaller number of users in the same time and frequency resources, inherits advantages from conventional ...
Toan Doan, Long Nguyen
doaj   +1 more source

Performance Analysis of Cell-Free Massive MIMO Systems: A Stochastic Geometry Approach [PDF]

open access: yes, 2020
© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Chatzinotas, Symeon   +4 more
core   +5 more sources

Cell-free Massive MIMO with Short Packets [PDF]

open access: yes2021 IEEE 22nd International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2021
5 pages, 2 figures, accepted at SPAWC ...
Lancho A., Durisi G., Sanguinetti L.
openaire   +3 more sources

Expert-Knowledge-Based Data-Driven Approach for Distributed Localization in Cell-Free Massive MIMO Networks

open access: yesIEEE Access, 2022
Massive Multiple-Input Multiple-Output (MaMIMO) communication networks are recently being investigated for hltheir high potential for localisation services.
Sibren De Bast   +2 more
doaj   +1 more source

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