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Wyświetlanie 1-15 z 205
Tytuł:
5G technologies in intelligent transport systems - architectures, virtualization and network slicing
Autorzy:
Gajewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/393393.pdf
Data publikacji:
2019
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
5G
network slicing
ITS
5G architecture
krojenie sieci
architektura 5G
Opis:
In the paper, 5G communication technologies implemented for Intelligent Transport Systems are discussed. Firstly, the essence of the 5G system concept is presented, and the problem of network functions virtualization (NFV) is analyzed. Moreover, the principle of virtualization is explained. Secondly, the analysis of network slicing is performed, from the point of view of transport systems implementation in the future 5G networks. The important part is the analysis of architecture proposals for the 5G communications system, implemented as ITS, for various scenarios of its work. The aim of this paper is the study on practice architecture of the 5G communication network for the ITS system, introduced as physical radio-informatics system implementation.
Źródło:
Archives of Transport System Telematics; 2019, 12, 1; 9-16
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards 5G — Cloud-based Radio Access Networks
W kierunku 5G — sieci dostępu radiowego w chmurze
Autorzy:
Gajewski, S.
Powiązania:
https://bibliotekanauki.pl/articles/222586.pdf
Data publikacji:
2017
Wydawca:
Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Tematy:
5G
phantom-cells
LTE-A
Cloud-RAN
virtual cells
komórki wirtualne
sieć dostępowa w chmurze
Opis:
In the paper a general concept of the 5G network architecture is presented as well as system requirements having impact on innovative solutions in the 5G network are highlighted. A major part of the paper is both presentation and discussion of the problem of Cloud Radio Access Network introduction for public networks in which the cell and resource virtualisation will be implemented. On the other hand, the problem of resource virtualization in the STRUGA system is discussed in which the C-RAN implementation is proposed for performance improvement.
W artykule omówiono ogólną architekturę sieci 5G oraz wymagania systemowe mające wpływ na stosowane w niej innowacyjne rozwiązania. Główną część stanowi prezentacja problematyki wdrażania sieci C-RAN w publicznych sieciach komórkowych, w których zostaną zaimplementowane metody wirtualizacji komórek oraz zasobów fizycznych. Przeanalizowano także problem wirtualizacji zasobów w systemie STRUGA, dla którego zaproponowano implementację sieci C-RAN w celu zwiększenia wydajności systemu.
Źródło:
Zeszyty Naukowe Akademii Marynarki Wojennej; 2017, R. 58 nr 3 (210), 3 (210); 33-41
0860-889X
Pojawia się w:
Zeszyty Naukowe Akademii Marynarki Wojennej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Naval use cases of 5G technology
Autorzy:
Zmysłowski, D.
Skokowski, P.
Malon, K.
Maślanka, K.
Kelner, J. M.
Powiązania:
https://bibliotekanauki.pl/articles/24201483.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
wireless communications
military communications
5G
technological gaps
naval use cases
naval task force
coastal or harbour communications
amphibious communications
Opis:
Fifth-generation (5G) technology is currently developing in mobile networks. The civilian 3rd Generation Partnership Project (3GPP) standard is the basis for this implementation. Higher throughput, network capacity, user density, and lower latency are the main advantages offered by 5G over Long Term Evolution (LTE) and older standards. For this reason, these advantages are increasingly recognized in critical mission and military solutions. However, the 5G technology utilization in military equipment requires a deep analysis of the 3GPP standard, especially regarding technological gaps, security, and use cases. This is particularly important in using communication equipment during armed conflicts. Such equipment must be characterized by greater security and reliability than civilian equipment. Currently, work and analyses in this area are realized by the European Defence Agency (EDA), North Atlantic Treaty Organization (NATO) Communications and Information Agency (NCIA), Allied Command Transformation (ACT), and NATO Science and Technology Organization (STO). In the Information Systems Technology (IST) Panel of the NATO STO, the research task group (RTG) "IST-187-RTG on 5G Technologies Application to NATO Operations" is working on this topic. This paper presents exemplary 5G use cases in the navy. We indicate potential advantages, problems, and technological gaps that should be solved before implementing 5G technology in naval systems.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 595--603
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prospects and QoS Requirements in 5G Networks
Autorzy:
Tikhvinskiy, V.
Bochechka, G.
Powiązania:
https://bibliotekanauki.pl/articles/307648.pdf
Data publikacji:
2015
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
5G
M2M
QoS
video services
virtualization
Opis:
In this article the requirements to some number of KPI that determine the quality of service (QoS) in 5G networks are formulated. The proposed QoS requirements are based on the analysis of functional requirements to 5G networks and traffic parameters for HD video and massive M2M services, which will be highly demanded in 2020. One of the 5G development paradigms is the network function virtualization (NFV) including cloud radio access and cloud core networks. The authors have proposed the concept of function blocks CQMF and CQCF to control and monitor QoS, which are implemented as part of the 5G network cloud infrastructure.
Źródło:
Journal of Telecommunications and Information Technology; 2015, 1; 23-26
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected aspects of non-orthogonal multiple access for future wireless communications – for IoT
Autorzy:
Wysocki, Tadeusz A.
Flizikowski, Adam
Marciniak, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2016292.pdf
Data publikacji:
2020
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
IoT networks
NOMA
5G
Opis:
This paper has provided an overview of selected IoT architectures, relevant requirements towards 5G (and beyond) systems as well as indication of NOMA techniques suitability as a multiple access technique and recent developments in the area of radio interface for IoT coexisting with 5G (and beyond) mobile networks. The authors assume that IoT networks in the future will be augmented with NOMA-capable sink-nodes (proxy or gateway) that can deliver aggregated data from multiple sensors for delivery to the cloud or other server. The main aim of this paper is to go beyond state of the art available nowadays and indicate directions for NOMA that make it even more attractive in combination with edge computing, cloud-RAN and especially AI/ML to improve future 6G networks.
Źródło:
Zeszyty Naukowe. Telekomunikacja i Elektronika / Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy; 2020, 24; 45-65
1899-0088
Pojawia się w:
Zeszyty Naukowe. Telekomunikacja i Elektronika / Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards 5G - Cloud-based Radio Access Networks
Autorzy:
Gajewski, Sławomir (telekomunikacja).
Powiązania:
Zeszyty Naukowe / Akademia Marynarki Wojennej im. Bohaterów Westerplatte 2017, nr 3, s. 33-41
Data publikacji:
2017
Tematy:
Przetwarzanie w chmurze
Telefonia komórkowa
Postęp techniczny
Artykuł problemowy
Artykuł z czasopisma naukowego
Artykuł z czasopisma wojskowego
Opis:
Rysunki.
Bibliografia na stronach 40-41.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
5G New Business Opportunities – New Business Models, Pricing, and Use Cases
Autorzy:
McCarthy-Ward, Peter
Valdar, Andy
Newstead, Stuart
Revell, Stuart
Powiązania:
https://bibliotekanauki.pl/articles/1839464.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
5G services
business challenges
infrastructure
Opis:
This paper addresses how network operators may gain a reasonable return on their investment into 5G infrastructure. It first considers the 5G mobile network costs structure then applies this to three typical use cases.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 2; 79-84
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Efficiency in 5G Communications – Conventional to Machine Learning Approaches
Autorzy:
Shahid, Muhammad Khalil
Debretsion, Filmon
Eyob, Aman
Ahmed, Irfan
Faisal, Tarig
Powiązania:
https://bibliotekanauki.pl/articles/1839308.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
5G
energy efficiency
wireless networks
Opis:
Demand for wireless and mobile data is increasing along with development of virtual reality (VR), augmented reality (AR), mixed reality (MR), and extended reality (ER) applications. In order to handle ultra-high data exchange rates while offering low latency levels, fifth generation (5G) networks have been proposed. Energy efficiency is one of the key objectives of 5G networks. The notion is defined as the ratio of throughput and total power consumption, and is measured using the number of transmission bits per Joule. In this paper, we review state-of-the-art techniques ensuring good energy efficiency in 5G wireless networks. We cover the base-station on/off technique, simultaneous wireless information and power transfer, small cells, coexistence of long term evolution (LTE) and 5G, signal processing algorithms, and the latest machine learning techniques. Finally, a comparison of a few recent research papers focusing on energy-efficient hybrid beamforming designs in massive multiple-input multiple-output (MIMO) systems is presented. Results show that machine learningbased designs may replace best performing conventional techniques thanks to a reduced complexity machine learning encoder.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 4; 1-9
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
MIMO Beam Selection in 5G Using Neural Networks
Autorzy:
Ruseckas, Julius
Molis, Gediminas
Bogucka, Hanna
Powiązania:
https://bibliotekanauki.pl/articles/2055220.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
5G
context information
MIMO beam orientation
machine learning
neural networks
Opis:
In this paper, we consider cell-discovery problem in 5G millimeter-wave (mmWave) communication systems using multiple input, multiple output (MIMO) beam-forming technique. Specifically, we aim at the proper beam selection method using context-awareness of the user-equipment to reduce latency in beam/cell identification. Due to high path-loss in mmWave systems, beam-forming technique is extensively used to increase Signal-to-Noise Ratio (SNR). When seeking to increase user discovery distance, narrow beam must be formed. Thus, a number of possible beam orientations and consequently time needed for the discovery increases significantly when random scanning approach is used. The idea presented here is to reduce latency by employing artificial intelligence (AI) or machine learning (ML) algorithms to guess the best beam orientation using context information from the Global Navigation Satellite System (GNSS), lidars and cameras, and use the knowledge to swiftly initiate communication with the base station. To this end, here, we propose a simple neural network to predict beam orientation from GNSS and lidar data. Results show that using only GNSS data one can get acceptable performance for practical applications. This finding can be useful for user devices with limited processing power.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 4; 693--698
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Centralized Spectrum Sharing and Coordination Between Terrestrial and Aerial Base Stations of 3GPP-Based 5G Networks
Autorzy:
Bechta, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1844695.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
5G
spectrum sharing
unmanned aerial vehicle
Opis:
The objective of this paper is to estimate performance of a new approach for spectrum sharing and coordination between terrestrial base stations (BS) and On-board radio access nodes (UxNB) carried by Unmanned Aerial Vehicles (UAV). This approach employs an artificial intelligence (AI) based algorithm implemented in a centralized controller. According to the assessment based on the latest specifications of 3rd Generation Partnership Project (3GPP) the newly defined Unmanned Aerial System Traffic Management (UTM) is feasible to implement and utilize an algorithm for dynamic and efficient distribution of available radio resources between all radio nodes involved in process of optimization. An example of proprietary algorithm has been described, which is based on the principles of Kohonen neural networks. The algorithm has been used in simulation scenario to illustrate the performance of the novel approach of centralized radio channels allocation between terrestrial BSs and UxNBs deployed in 3GPP-defined rural macro (RMa) environment. Simulation results indicate that at least 85% of simulated downlink (DL) transmissions are gaining additional channel bandwidth if presented algorithm is used for spectrum distribution between terrestrial BSs and UxNBs instead of baseline soft frequency re-use (SFR) approach.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 2; 301-308
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Per Sub-band Tone Reservation Scheme for Universal Filtered Multi-Carrier Signal
Autorzy:
Mounira, Laabidi
Ridha, Bouallegue
Powiązania:
https://bibliotekanauki.pl/articles/27311943.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
UFMC
PAPR
PSTR
Fifth generation (5G)
Opis:
Fifth generation (5G) applications like Internet of Things (IoT), Enhanced Mobile Broadband (eMBB), Cognitive Radios (CR), Vehicle to Vehicle (V2V) and Machine to Machine (M2M) communication put new demands on the network in terms of low latency, ultra-reliable communication and efficiency when transmitting very small bursts. One new contender that makes its appearance recently is the Universal Filtered Multi- Carrier (UFMC). UFMC is a potential candidate to meet the requirements of 5G upcoming applications. This related waveform encounters the peak-to-average power ratio (PAPR) issue arising from the usage of multi-carrier transmission. In this investigation, two PAPR reduction techniques, called Per Subband Tone Reservation (PSTR) scheme to alleviate PAPR in UFMC systems are suggested. The first one is a pre-filtering PSTR scheme that uses the least squares approximation (LSA) algorithm to calculate the optimization factor(μ) and the second one is a post-filtering method. The concept of this proposal lies on the use of peaks reductions Tone to carry the correctional signal that reduces the high peaks of each sub-band individually. To shed light on UFMC as a potential waveform for 5G upcoming application, a comparison with OFDM modulation is done.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 3; 545--552
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The importance of 5G networks for railway transport development
Autorzy:
Załoga, Elżbieta
Stępień, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/1819181.pdf
Data publikacji:
2020
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
railway transport
digitalisation
5G network
service
passengers
accessibility
Opis:
Digitisation of transport is a tool for achieving the European Union’s political goals included in the Digital Single Market Strategy for Europe. For rail transport, digital innovation is required to increase its competitiveness. One of the tools of the digital transformation of railways is 5G networks, the fifth generation of wireless communication systems. The purpose of this article is to present the benefits of implementing 5G network for railway operators. Focus was placed on its innovative features, such as ultra-fast access to Internet services, very high connection reliability, and extremely low data transmission delays. Examples of new services for railway operators based on the capabilities of 5G networks were presented. This article describes the unique functions of the 5G network in which resources can be flexibly allocated depending on current traffic needs thanks to the network slicing function, e.g., for services of key importance to rail traffic and commercial services for other market segments. Roadmap proposals for transforming the current rail communication network infrastructure towards the target FRMCS system are presented. The analysis was based on source materials from Nokia Corporation, available literature, EU documents and regulations, as well as institutional studies of the railway sector.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 63 (135); 29-35
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Security Verification in the Context of 5G Sensor Networks
Autorzy:
Remlein, Piotr
Stachowiak, Urszula
Powiązania:
https://bibliotekanauki.pl/articles/1839340.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
5G
automated symbolic analysis
Internet of Things
security protocols
sensor networks
Opis:
In order to develop reliable safety standards for 5G sensor networks (SN) and the Internet of Things, appropriate verification tools are needed, including those offering the ability to perform automated symbolic analysis process. The Tamarin prover is one of such software-based solutions. It allows to formally prove security protocols. This paper shows the modus operandi of the tool in question. Its application has been illustrated using an example of an exchange of messages between two agents, with asynchronous encryption. The scheme may be implemented, for instance, in the TLS/DTLS protocol to create a secure cryptographic key exchange mechanism. The aim of the publication is to demonstrate that automated symbolic analysis may be relied upon to model 5G sensor networks security protocols. Also, a use case in which the process of modeling the DTLS 1.2 handshake protocol enriched with the TCP SYN Cookies mechanism, used to preventing DoS attacks, is presented.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 2; 107-119
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poland and the technological rivalry of great powers for leadership in 5G technology
Autorzy:
Tomaszewska, Paula
Powiązania:
https://bibliotekanauki.pl/articles/2120148.pdf
Data publikacji:
2022-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Polska
5G
rivalry
China
United States
Huawei
Opis:
The subject of the article is to analyze how Poland reacts to the US-Chinese competition for primacy over 5G technology. The importance of 5G systems has acquired a geopolitical dimension. Poland also feels its technological security dilemma. The acceptance by the Polish authorities of Washington’s position on 5G was undoubtedly an element of the negotiations on increasing the size of the American contingent in Poland. There are indications that decisions on how to treat Huawei in our country will be made on the basis of strong allied ties. At one time Poland seemed to be balancing between US pressure and China, but now it has sided decisively on the American side. The question still remains open: will the Polish state be able to fully open itself to the transatlantic allied relationship to benefit from this cooperation?
Źródło:
Reality of Politics; 2022, 21; 122-136
2082-3959
Pojawia się w:
Reality of Politics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
QoS Requirements as Factor of Trust to 5G Network
Autorzy:
Tikhvinskiy, V.
Bochechka, G.
Gryazev, A.
Powiązania:
https://bibliotekanauki.pl/articles/307988.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
network performance
network security
QoE
trusted network
Opis:
Trust to modern telecommunications networks plays an important role as a driver of technological and market success of any technology or telecommunication services. Most of the technological approaches to this problem are focused only on network security and do not include such a factor as the quality of service (QoS), which also plays an important role in the formation of trust both from the consumers and the regulator. The future 5G mobile technology will be the engine of development of telecommunications until 2020 and the formation of trust to the 5G networks is one of the main tasks for developers. The authors present the view on the trust to 5G networks in the plane of QoS requirements formation and QoS management. QoS requirements to 5 G networks were determined on the basis of three main business models of services: xMBB, M-MTC and U-MTC and the need to ensure user trust to networks. Infrastructure requirements for QoS control and spectrum management network entities which are based on Network Function Virtualization (NFV) principles have been formed.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 1; 3-8
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 205

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