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    Wyświetlanie 1-11 z 11
    Tytuł:
    Analysis of Coverage and Area Spectral Efficiency under Various Design Parameters of Heterogeneous Cellular Network
    Autorzy:
    Abbasi, Anum
    Shaikh, M. Mujtaba
    Dahri, Safia
    Soomro, Sarfraz Ahmed
    Panhwar, Fozia Aijaz
    Powiązania:
    https://bibliotekanauki.pl/articles/2055224.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    heterogeneous network
    coverage
    area spectral efficiency
    5G
    ultra-dense network
    Opis:
    As day by day the population is increasing, the use of mobile phones and different applications is increasing which requires high data rate for transmission. Homogeneous cellular network cannot fulfill the demand of mobile users, so creating a heterogeneous cellular network (HCN) is a better choice for higher coverage and capacity to fulfil the increasing demand of upcoming 5G and ultra-dense cellular networks. In this research, the impact of antenna heights and gains under varying pico to macro base stations density ratio from 2G to 5G and beyond on two-tier heterogeneous cellular network has been analyzed for obtaining optimum results of coverage and area spectral efficiency. Furthermore, how the association of UEs affects the coverage and ASE while changing the BSs antenna heights and gains has been explored for the two-tier HCN network model. The simulation results show that by considering the maximum macro BS antenna height, pico BS antenna height equal to user equipment (UE) antenna height and unity gains for both macro and pico tiers, the optimum coverage and area spectral efficiency (ASE) for a two-tier fully loaded heterogeneous cellular network can be obtained.
    Źródło:
    International Journal of Electronics and Telecommunications; 2021, 67, 4; 639--645
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Analysis of Latency-Aware Network Slicing in 5G Packet xHaul Networks
    Autorzy:
    Klinkowski, Mirosław
    Powiązania:
    https://bibliotekanauki.pl/articles/27311921.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    5G
    radio access networks
    packet-switched xHaul
    latency-sensitive network
    network slicing
    traffic prioritization
    network optimization
    Opis:
    Packet-switched xHaul networks are a scalable solution enabling convergent transport of diverse types of radio data flows, such as fronthaul / midhaul / backhaul (FH / MH / BH) flows, between remote sites and a central site (hub) in 5G radio access networks (RANs). Such networks can be realized using the cost-efficient Ethernet technology, which enhanced with time-sensitive networking (TSN) features allows for prioritized transmission of latency-sensitive fronthaul flows. Provisioning of multiple types of 5G services of different service requirements in a shared network, commonly referred to as network slicing, requires adequate handling of transported data flows in order to satisfy particular service / slice requirements. In this work, we investigate two traffic prioritization policies, namely, flowaware (FA) and latency-aware (LA), in a packet-switched xHaul network supporting slices of different latency requirements. We evaluate the effectiveness of the policies in a networkplanning case study, where virtualized radio processing resources allocated at the processing pool (PP) facilities, for two slices related to enhanced mobile broadband (eMBB) and ultra-reliable low latency communications (URLLC) services, are subject to optimization. Using numerical experiments, we analyze PP cost savings from applying the LA policy (vs. FA) in various network scenarios. The savings in active PPs reach up to 40% − 60% in ring scenarios and 30% in a mesh network, whereas the gains in overall PP cost are up to 20% for the cost values assumed in the analysis.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 2; 335--340
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Security aspects of strategic co-operation of Ukraine and EU with regard to network and information systems
    Aspekty bezpieczeństwa strategicznej współpracy Ukrainy i UE w odniesieniu do sieciowych i informatycznych systemów
    Autorzy:
    Olijnyk, Danyila
    Ilyash, Olha
    Konizhai, Yurii
    Powiązania:
    https://bibliotekanauki.pl/articles/1811793.pdf
    Data publikacji:
    2019-11-20
    Wydawca:
    Wyższa Szkoła Gospodarki w Bydgoszczy. Wydawnictwo Uczelniane
    Tematy:
    security of network and information systems
    global information infrastructure
    electronic communications
    Internet of Things
    next generation networks
    broadband
    5G
    bezpieczeństwo sieci i systemów informatycznych
    globalna infrastruktura informacyjna
    komunikacja elektroniczna
    internet rzeczy
    sieci nowej generacji
    internet szerokopasmowy
    Opis:
    On the basis of an analysis of the EU regulatory framework on network and information systems security, the authors share the opinion that the geopolitical and economic factors of development, Ukraine may apply for inclusion in the global information infrastructure intended to connect all telecommunication and computer networks in globally, and is emerging to address complex issues such as security, privacy, hardware and software compatibility, identity management, digital rights management, and more. It is a European vector of integration of Ukraine for the creation of next-generation digital networks. However, it requires not only the proclamation of these directions as a priority but also the political will of the authorities and the establishment of a mechanism of interaction between public authorities and civil society institutions with the involvement of Ukraine’s strategic partners. The development of balanced interaction with the global digital infrastructure, strategic programming of digital preservation development and data processing, including energy and telecommunications infrastructure, creation and implementation of macro models inclusive development of Ukraine as a guarantee of information security.
    Na podstawie analizy ram regulacyjnych UE dotyczących bezpieczeństwa sieci i systemów informatycznych autorzy podzielają opinię, że geopolityczne i ekonomiczne czynniki rozwoju Ukrainy mogą ubiegać się o włączenie do globalnej infrastruktury informacyjnej, mającej na celu połączenie wszystkich telekomunikacyjnych i komputerowych sieci w skali globalnej i coraz częściej pojawia się ten postulat w celu rozwiązania takich problemów, jak bezpieczeństwo, prywatność, zgodność sprzętu i oprogramowania, zarządzanie prawami cyfrowymi. Europejski wektor integracji Ukrainy został wybrany w celu tworzenia sieci cyfrowych nowej generacji. Wymaga to jednak nie tylko ogłoszenia tych priorytetowych kierunków, ale także woli politycznej władz i wyboru mechanizmu interakcji między władzami publicznymi a instytucjami społeczeństwa obywatelskiego przy zaangażowaniu strategicznych partnerów Ukrainy. Rozwój zrównoważonej interakcji z globalną infrastrukturą cyfrową, strategiczne programowanie rozwoju ochrony zasobów cyfrowych i przetwarzania danych, w tym infrastruktury energetycznej i telekomunikacyjnej, tworzenie i wdrażanie makropoleceń – stanowią gwarancję bezpieczeństwa informacyjnego Ukrainy.
    Źródło:
    Zeszyty Naukowe Wyższej Szkoły Gospodarki w Bydgoszczy. Seria Ekonomia; 2019, 10, 34; 89-106
    1733-8891
    Pojawia się w:
    Zeszyty Naukowe Wyższej Szkoły Gospodarki w Bydgoszczy. Seria Ekonomia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sztuczna inteligencja (AI), internet rzeczy (IoT) i sieć piątej generacji (5G) w nowoczesnych badaniach naukowych
    Artificial intelligence (AI), the Internet of things (IoT), and the fifth generation (5G) network in the modern science research
    Autorzy:
    Puślecki, Zdzisław W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2043873.pdf
    Data publikacji:
    2021-12-31
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    innovation
    modern science research
    artificial intelligence
    Internet of things
    fifth generation – 5G network
    Opis:
    In the coming time, the innovative success of customer service will depend on having a data- driven strategy. Automation will play a key role in employee service initiatives. The progress and implementation of robot-based process automation, as well as machine learning, artificial intelligence (AI), the Internet of things (IoT), and the construction of the fifth generation 5G network will be important. Trends such as gamification, Big Data and AI are visible. Thanks to this, the right vision is created, supported by the necessary technical knowledge, to implement solutions that open the gate of undiscovered business potential. Modern technology is also becoming a tool of public surveillance. The aim of the study is to present artificial intelligence and the Internet of things as well as the construction of the fifth generation – 5G networks in the face of innovative challenges resulting from the economic crisis caused by the COVID-19 pandemic.
    Źródło:
    Człowiek i Społeczeństwo; 2021, 52; 123-164
    0239-3271
    Pojawia się w:
    Człowiek i Społeczeństwo
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Most Suitable 5G Simulator Scenarios for Lab as a Service (LaaS) in Higher Education
    Autorzy:
    Putri, Hasanah
    Novanana, Sinta
    Powiązania:
    https://bibliotekanauki.pl/articles/27311951.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    5G
    software
    LaaS
    higher education laboratory
    real network experience
    Opis:
    The 5G System is being developed and enhanced to provide unparalleled connectivity to connect everyone and everything, everywhere. 5G technology use cases depicts the prospects of 5G network model to revolutionize Industry and Education is not an exception . To catch up with the latest technology in the higher education environment there’s a need to have 5G Lab as a Service (LaaS) in education to simulate the real network experience. The software is the key to this generation as the virtualization, modularity and abstraction become more popular in the implementation and that the cloud computing is nowadays becoming the trend of technology. This paper presents a software selection between free5gc, magma and open5gs program. The 5G lab located in Jakarta Indonesia has the ability where in physical and virtual resources can be accessed and managed from any location in the world. Free5gc opensource software solution is the most suitable software which can be used as LaaS in Higher Education laboratory. With a LaaS, we can configuration, connection, and troubleshoot 5G infrastructure including radio access networks, core networks, and transportation networks.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 4; 639--644
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fading Channel Prediction for 5G and 6G Mobile Communication Systems
    Autorzy:
    Soszka, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/2055227.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    5G
    6G
    channel prediction
    channel state information
    sub-6 GHz
    millimetre-wave
    neural network
    artificial intelligence
    narrowband
    wide band
    ultra wide band
    Opis:
    Nowadays, there is a trend to employ adaptive solutions in mobile communication. The adaptive transmission systems seem to answer the need for highly reliable communication that serves high data rates. For efficient adaptive transmission, the future Channel State Information (CSI) has to be known. The various prediction methods can be applied to estimate the future CSI. However, each method has its bottlenecks. The task is even more challenging while considering the future 5G/6G communication where the employment of sub-6 GHz and millimetre waves (mmWaves) in narrow-band, wide-band and ultra-wide-band transmission is considered. Thus, author describes the differences between sub-6 GHz/mmWave and narrow-band/wide-band/ultra-wide-band channel prediction, provide a comprehensive overview of available prediction methods, discuss its performance and analyse the opportunity to use them in sub-6 GHz and mmWave systems. We select Long Short-Term Memory Recurrent Neural Network (RNN) as the most promising technique for future CSI prediction and propose optimising two of its parameters - the number of input features, which was not yet considered as an opportunity to improve the performance of CSI prediction, and the number of hidden layers.
    Źródło:
    International Journal of Electronics and Telecommunications; 2022, 68, 1; 153--160
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Next generation cellular networks services for transport needs
    Kolejna generacja sieci komórkowych w usługach transportowych
    Autorzy:
    Sułkowski, K.
    Odarchenko, R.
    Gnatyuk, S.
    Machalin, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/249869.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Naukowo-Wydawniczy TTS
    Tematy:
    cellular network
    transportation services
    5G
    transport infrastructure
    sieć komórkowa
    usługi transportowe
    infrastruktura transportowa
    Opis:
    Transport infrastructure is vital to the well-functioning of economic activities and a key to ensuring social wellbeing and cohesion of populations. Adequate infrastructure is a fundamental precondition for transport systems. So, the main aim is to provide innovative services relating to different modes of transport and traffic management and enable various users to be better informed and make safer, more coordinated, and 'smarter' use of transport networks. In this case modern and next generation wireless technologies can be used. In the nearest future, up to 2020, 5G cellular networks have to be deployed in Europe and they will bring lots of benefits for transport systems. That’s why it is necessary to investigate new opportunities of next generation cellular networks and to implement them to the concept of intelligent transport systems of the future.
    Infrastruktura transportowa jest niezbędna do prawidłowego funkcjonowania działalności gospodarczej i kluczem do zapewnienia dobrobytu i spójności społeczeństwa. Odpowiednia infrastruktura jest podstawowym warunkiem dla systemów transportowych. Tak więc, głównym celem jest dostarczanie innowacyjnych usług związanych z różnymi środkami transportu i zarządzania ruchem oraz umożliwienie użytkownikom dostępu do "inteligentniejszego" korzystania z sieci transportowych. W tym przypadku można stosować nowoczesne technologie bezprzewodowe. W najbliższym czasie, aż do roku 2020, sieci komórkowe 5G mają być rozmieszczone w Europie i dostarczyć wiele korzyści dla systemów transportowych. Dlatego konieczne jest zbadanie nowych możliwości kolejnej generacji sieci komórkowych i wprowadzić je do koncepcji inteligentnych systemów transportowych w przyszłości.
    Źródło:
    TTS Technika Transportu Szynowego; 2016, 12; 246-250
    1232-3829
    2543-5728
    Pojawia się w:
    TTS Technika Transportu Szynowego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Minimization of Energy and Service Latency Computation Offloading using Neural Network in 5G NOMA System
    Autorzy:
    Suprith, P. G.
    Ahmed, Mohammed Riyaz
    Powiązania:
    https://bibliotekanauki.pl/articles/27311932.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Mobile edge computing
    Deep Q Network Algorithm
    latency optimized
    computation offloading
    5G
    Opis:
    The future Internet of Things (IoT) era is anticipated to support computation-intensive and time-critical applications using edge computing for mobile (MEC), which is regarded as promising technique. However, the transmitting uplink performance will be highly impacted by the hostile wireless channel, the low bandwidth, and the low transmission power of IoT devices. Using edge computing for mobile (MEC) to offload tasks becomes a crucial technology to reduce service latency for computation-intensive applications and reduce the computational workloads of mobile devices. Under the restrictions of computation latency and cloud computing capacity, our goal is to reduce the overall energy consumption of all users, including transmission energy and local computation energy. In this article, the Deep Q Network Algorithm (DQNA) to deal with the data rates with respect to the user base in different time slots of 5G NOMA network. The DQNA is optimized by considering more number of cell structures like 2, 4, 6 and 8. Therefore, the DQNA provides the optimal distribution of power among all 3 users in the 5G network, which gives the increased data rates. The existing various power distribution algorithms like frequent pattern (FP), weighted least squares mean error weighted least squares mean error (WLSME), and Random Power and Maximal Power allocation are used to justify the proposed DQNA technique. The proposed technique which gives 81.6% more the data rates when increased the cell structure to 8. Thus 25% more in comparison to other algorithms like FP, WLSME Random Power and Maximal Power allocation.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 4; 661--667
    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
      Wyświetlanie 1-11 z 11

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