Results 121 to 130 of about 20,641 (239)

Artificial Intelligence Applications in Smart Cities: Integrating Communication, Energy Management, Cybersecurity and Internet of Things

open access: yesThe Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
ABSTRACT Smart cities represent transformative urban ecosystems, leveraging advanced technologies to address challenges posed by rapid urbanisation, energy efficiency demands, and sustainability goals. Despite extensive research, a comprehensive and integrated literature analysis combining AI‐based communication, energy management, cybersecurity, and ...
Maaz Tahir Malik   +5 more
wiley   +1 more source

Graphene–Polyimide Flexible Electronic Platform Enabling Ultra‐Broadband High‐Gain THz MIMO Systems

open access: yesAdvances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
The integration of two‐dimensional (2D) materials with flexible substrates is pivotal for advancing next‐generation terahertz (THz) and sixth‐generation (6G) wearable electronics. However, a significant challenge remains in preserving the exceptional electronic properties of 2D materials such as graphene on low‐loss, mechanically robust dielectrics at ...
Ayesha Siddika Mourin   +3 more
wiley   +1 more source

Supporting UAV Cellular Communications through Massive MIMO

open access: yes, 2018
In this article, we provide a much-needed study of UAV cellular communications, focusing on the rates achievable for the UAV downlink command and control (C&C) channel.
Björnson, Emil   +4 more
core   +1 more source

Power Allocation in Cell-Free Massive MIMO: A Deep Learning Method

open access: yesIEEE Access, 2020
Massive multiple-input multiple-output (MIMO) is a key technology in 5G. It enables multiple users to be served in the same time-frequency block through precoding or beamforming techniques, thus increasing capacity, reliability and energy efficiency. A key issue in massive MIMO is the allocation of power to the individual antennas, in order to achieve ...
Yu Zhao   +2 more
openaire   +2 more sources

⁠Performance Enhancement of Cell Edge Users in NOMA Based Systems Using Fractional Frequency Reuse

open access: yesJournal of Sensors, Volume 2026, Issue 1, 2026.
Nonorthogonal multiple access (NOMA) causes significant performance loss for cell‐edge users due to strong intercell interference and fairness constraints under dense deployments. Although fractional frequency reuse (FFR) to improve dependability, especially for cell‐edge users, is widely researched, joint optimization with SINR‐based zoning and NOMA ...
Jesvin Veancy   +4 more
wiley   +1 more source

A Comparative Benchmark of Scale-Up and Scale-Out MIMO Architectures for 5G and Prospective 6G Networks

open access: yesTelecom
The evolution toward prospective sixth-generation (6G) wireless networks is expected to significantly increase user density, bandwidth demand, and architectural complexity, reinforcing the need for scalable multiple-input multiple-output (MIMO ...
Samuel Otero Rebolo, Victor Monzon Baeza
doaj   +1 more source

Metasurface Effect on the Performance of Planar Antennas for Wireless Communications

open access: yesRadio Science, Volume 60, Issue 11, November 2025.
Abstract This paper demonstrates the performance enhancement of a conventional planar antenna by incorporating metasurface (MTS) layer using a proposed unit‐cell array. The impact of MTS unit‐cell density on bit‐error‐rate (BER) and channel capacity (CC) in a point‐to‐point microwave link is investigated.
Amenah Shabeeb Kamil   +9 more
wiley   +1 more source

Massive MIMO for Next Generation Wireless Systems

open access: yes, 2014
Multi-user Multiple-Input Multiple-Output (MIMO) offers big advantages over conventional point-to-point MIMO: it works with cheap single-antenna terminals, a rich scattering environment is not required, and resource allocation is simplified because every
Edfors, Ove   +3 more
core   +1 more source

Joint User-Centric Clustering and Pilot Allocation for Scalable Cell-Free Massive MIMO System

open access: yesInternational Journal of Technology
Cell-free massive multiple-input multiple-output (MIMO) is a promising technology where many access points (APs) cooperate to jointly serve user equipments (UEs) within the same time-frequency resource. However, the initial form of cell-free massive MIMO
Irma Zakia, Muhammad Brata
doaj   +1 more source

Cell-Free Terahertz Massive MIMO: A Novel Paradigm Beyond Ultra-Massive MIMO

open access: yes2024 IEEE International Mediterranean Conference on Communications and Networking (MeditCom)
The Fourth IEEE International Mediterranean Conference on Communications and Networking (IEEE MEDITCOM 2024), July 2024, Madrid ...
Jiang, Wei, Schotten, Hans D.
openaire   +2 more sources

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