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

