Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 95, P. 112535 - 112535
Published: June 19, 2024
Language: Английский
Sensors, Journal Year: 2023, Volume and Issue: 23(14), P. 6329 - 6329
Published: July 12, 2023
Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband network access. By utilizing multiple antennas at both transmitting and receiving ends, MIMO system enhances efficiency performance communication systems. This manuscript specifies comprehensive review antenna design approaches fifth generation (5G) beyond. With introductory glimpse cellular frequency spectrum 5G, profound key enabling technologies 5G mobile are presented. A detailed analysis parameters terms envelope correlation coefficient (ECC), total active reflection (TARC), mean effective gain (MEG), isolation is presented along with advantages over conventional SISO characterized compared based on wideband/ultra-wideband, multiband/reconfigurable, circular polarized wideband/circular ultra-wideband/circular multiband, reconfigurable categories. The various bands discussed. It subsequently enriched studies wideband (WB)/ultra-wideband (UWB), different techniques. good should be well decoupled among ports enhance its performance, hence crucial factor designing high-performance antennas. summary improved summarizes aspects NR FR-1 (new radio range) FR-2, which will benefit researchers field forthcoming generations.
Language: Английский
Citations
46
IEEE Access, Journal Year: 2023, Volume and Issue: 11, P. 100986 - 101006
Published: Jan. 1, 2023
6G networks can support global, ubiquitous and seamless connectivity through the convergence of terrestrial non-terrestrial (NTNs). Unlike scenarios, NTNs pose unique challenges including propagation characteristics, latency mobility, owing to operations in spaceborne airborne platforms. To overcome all these technical hurdles, this survey paper presents use artificial intelligence (AI) techniques learning adapting complex NTN environments. We begin by providing an overview context 6G, highlighting potential security privacy issues. Next, we review existing AI methods adopted for optimization, starting from machine (ML), deep (DL) reinforcement (DRL). All have paved way towards more intelligent network planning, resource allocation (RA), interference management. Furthermore, discuss opportunities AI-powered networks. Finally, conclude insights recommendations on key enabling technologies future NTNs.
Language: Английский
Citations
23
IEEE Access, Journal Year: 2024, Volume and Issue: 12, P. 59533 - 59560
Published: Jan. 1, 2024
In the epoch of fifth generation (5G) wireless communication, this survey article illuminates nuanced landscape 5G Channel Measurements and Models. It meticulously navigates challenges, methodologies, practical implications that define implementation groundbreaking technology. Embarking on exploration, unravels Challenges in Implementation, addressing technological hurdles standardized protocols pivotal for seamless integration. Unveiling Existing Methods Technologies, it highlights Massive MIMO, millimeter-wave communications, integration artificial intelligence (AI) as transformative elements shaping high-capacity communication. Beyond technical intricacies, delves into Diverse Applications Use Cases 5G, promising a paradigm shift from Internet Things (IoT) to mission-critical communications. Frequency Considerations Bands take center stage, dissecting critical spectrum domain exploring high-frequency bands enhanced data rates. Addressing concerns, scrutinizes Health Concerns Regulatory Considerations, presenting balanced perspective impact networks health regulatory landscapes. The Benefits Over 4G LTE drive transition, with rates, lower latency, massive device connectivity distinguishing 5G. environmental is considered Energy Efficiency Networks, strategies innovations making more energy-efficient. Global Standards Interoperability become imperative 5G's global potential, examining ongoing efforts by standardization bodies unified framework. exploration extends realm Models, MIMO Measurements, Millimeter-Wave Beamforming, Antenna Array Configurations, Time-Variant, Time-Invariant Modeling, Measurement Tools Techniques. Critically explores limitations proposes avenues future research. This serves definitive compendium unraveling complexities, opportunities inherent deployment Its holistic examination provides valuable resource researchers, practitioners, industry stakeholders navigating dynamic
Language: Английский
Citations
4
e-Prime - Advances in Electrical Engineering Electronics and Energy, Journal Year: 2025, Volume and Issue: 11, P. 100888 - 100888
Published: Jan. 5, 2025
Language: Английский
Citations
0
Lecture notes in networks and systems, Journal Year: 2025, Volume and Issue: unknown, P. 255 - 265
Published: Jan. 1, 2025
Language: Английский
Citations
0
Energy Nexus, Journal Year: 2025, Volume and Issue: unknown, P. 100368 - 100368
Published: Feb. 1, 2025
Language: Английский
Citations
0
Electronics, Journal Year: 2025, Volume and Issue: 14(5), P. 847 - 847
Published: Feb. 21, 2025
This paper presents a novel dual-band antenna design for simultaneous 5G communication and localization services in high-speed train (HST) scenarios. It operates the frequency range 1 (FR1) n78 band at 3.5 GHz FR2 n258 26.2 GHz. The combines dielectric resonator (DRA) planar patch to achieve functionality. provides efficient performance across both mid-band millimeter-wave frequencies advanced applications. configuration is motivated by need balance wide coverage high data rates within single, compact design, addressing specific challenges of maintaining stable connectivity spectrum utilization high-speed, data-intensive environments. A common challenge designs interference between low- high-frequency antennas, which can significantly degrade or even cause failure. Our addresses this issue minimizing DRA elements, ensuring operation bands. As result, achieves impressive gains bandwidth, with maximum gain 6.8 dBi an impedance bandwidth 22.5% configuration. Also, radiators present total efficiency above 90%. size makes it highly suitable be mounted on roof enable location-based safety-critical liability-critical applications HST
Language: Английский
Citations
0
Journal of Network and Systems Management, Journal Year: 2025, Volume and Issue: 33(2)
Published: Feb. 27, 2025
Language: Английский
Citations
0
Sensors, Journal Year: 2025, Volume and Issue: 25(6), P. 1806 - 1806
Published: March 14, 2025
Positioning information greatly enhances the convenience of people’s lives and efficiency societal operations. However, due to impact complex indoor environments, GNSS signals suffer from multipath effects, blockages, attenuation, making it difficult provide reliable positioning services indoors. Smartphone navigation is a crucial technology for enabling location services. Nevertheless, relying solely on single technique can hardly achieve accurate localization. We reviewed several main methods using smartphone sensors, including Wi-Fi, Bluetooth, cameras, microphones, inertial others. Among these, wireless medium-based are prone interference obstacles in environment, while sensors limited by error accumulation. The fusion multi-source scenarios benefits complementary advantages various has become research hotspot field pervasive localization applications smartphones. In this paper, we extensively review current mainstream sensor fusion. summarize recent progress domain along with characteristics relevant techniques applicable scenarios. Finally, collate organize key issues technological outlooks field.
Language: Английский
Citations
0
Deleted Journal, Journal Year: 2025, Volume and Issue: 7(4)
Published: March 21, 2025
Language: Английский
Citations
0