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    Wyświetlanie 1-6 z 6
    Tytuł:
    Mobile telecommunication systems changed the electronic communications and ICT market
    Autorzy:
    Zieliński, A.
    Zieliński, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/308308.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    GSM cellular network
    market penetration
    market prospects
    mobile communication
    services
    Opis:
    The paper covers development and importance of mobile (cellular) telecommunication services, which developed during last about 20 years and are currently the most important and profitable telecommunication sector. The development of mobile telecommunications becomes essential factor of economic growth in many countries, especially in developing countries. Currently due to the scientific and technological progress as well as the implementation a new standard known as LTE system, cellular telecommunication becomes the basic element of the modern broadband telecommunication infrastructure and internet services. Growing importance of the mobile systems is also connected with great popularity of new mobile terminals – smartphones and tablets. These terminals together with the technology known as cloud computing changed also the ICT market. The paper relates to the situation in many countries, but mainly to Poland.
    Źródło:
    Journal of Telecommunications and Information Technology; 2013, 2; 5-13
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The significance of wireless communication for the metering data transmission via Smart Grids
    Autorzy:
    Jędrychowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/97351.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    data transmission
    smart metering
    GSM network
    advanced metering infrastructure
    AMI
    automatic meter reading
    AMR
    advanced meter management
    AMM
    Opis:
    The article presents technological solutions of the communication and data transmission area that are indispensable for the organization of smart metering. As the term “smart metering” is very broad, particular attention has been focused on solutions based on the GSM-based wireless transmission that makes possible to flexibly model the process of remote meter reading with the use of the existing technological infrastructure. The article determines factors that can decide over the application of a such communication type as well as technical specifications to be met in order to develop a system that could successfully operate over an extensive network. Characteristics of the communication equipment used in real-time metering and billing systems have also been presented.
    Źródło:
    Computer Applications in Electrical Engineering; 2011, 9; 245-256
    1508-4248
    Pojawia się w:
    Computer Applications in Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evolutionary Analysis of GSM, UMTS and LTE Mobile Network Architectures
    Autorzy:
    Ochang, Paschal A.
    Irving, Philip J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191210.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    GSM
    UMTS
    LTE
    Network Achitecture
    Security
    Bandwidth
    Opis:
    The Global System for Mobile Communications (GSM) which is a standard for 2G (second generation) cellular networks has created an avenue for the development of 3G (third generation) and 4G (fourth Generation) cellular network standards such as Universal Mobile Telecommunications System (UMTS) and long term evolution (LTE). With the deployment of new technologies still on the way, the era beyond 3G and 4G requires that cellular and radio technologies need to work together forming highly heterogeneous networks, therefore this paper analyses already existing cellular network technologies such as LTE, GSM and UMTS in order to give a general understanding of their architectures, functional and evolutional dependencies and also to provide an evolutionary trend and a clear overview of the support provided for other telecommunications infrastructure.
    Źródło:
    World Scientific News; 2016, 54; 27-39
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radio planning and transmission network design of GSM-R system for the railway line
    Autorzy:
    Gruba, Ł.
    Siergiejczyk, M.
    Kochan, A.
    Gago, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/393559.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    ERTMS
    GSM-R
    radio planning
    transmission network
    planowanie radiowe
    sieć transmisyjna
    Opis:
    One of the biggest projects aimed at integration of the infrastructure of the European Union is the implementation of the European Rail Traffic Management System on the railway network of the Member States. Its goal is to unify the railway traffic control system in European countries, increase safety as well as ensure the interoperability of rail transport. One of its main components is ERTMS/GSM-R subsystem. This article presents the structure of the GSM-R system as well as associated systems. Services offered by the system are discussed. The rules of planning radio networks including the propagation model are described. The final part of the paper contains an example of radio planning for GSM-R system for selected railway line covering computations as well as simulation tests. The simulation of the radio coverage was prepared with the usage of ICS Telecom software.
    Źródło:
    Archives of Transport System Telematics; 2017, 10, 2; 3-7
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Artificial Neural Network Approach to Mobile Location Estimation in GSM Network
    Autorzy:
    Ezema, L. S.
    Ani, C. I.
    Powiązania:
    https://bibliotekanauki.pl/articles/226374.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    neural network
    artificial intelligent
    Levenberg-Marquardt
    multi-layered perceptron
    mobile location estimation
    GSM
    Opis:
    The increase in utilisation of mobile location-based services for commercial, safety and security purposes among others are the key drivers for improving location estimation accuracy to better serve those purposes. This paper proposes the application of Levenberg Marquardt training algorithm on new robust multilayered perceptron neural network architecture for mobile positioning fitting for the urban area in the considered GSM network using received signal strength (RSS). The key performance metrics such as accuracy, cost, reliability and coverage are the major points considered in this paper. The technique was evaluated using real data from field measurement and the results obtained proved the proposed model provides a practical positioning that meet Federal Communication Commission (FCC) accuracy requirement.
    Źródło:
    International Journal of Electronics and Telecommunications; 2017, 63, 1; 39-44
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fulfilment of the Essential Requirements of the Control-command and Signalling Trackside Subsystem on the Railway Infrastructure of Transhipment Terminals
    Autorzy:
    Gradowski, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/2131839.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Kolejnictwa
    Tematy:
    core network
    comprehensive network
    certification
    control command
    signalling subsystem
    ETCS
    GSM-R
    sieć bazowa
    sieć kompleksowa
    certyfikacja
    podsystem sterowanie
    Opis:
    The implementation of many railway investments indicates as the main goal increasing the efficiency of the railway system, and thanks to its features it becomes easier to integrate it in the competitive transport market. Increasing the integration of the transport sector is one of the cornerstones of the completion of the internal market and rail is an important part of the transport sector moving towards sustainable mobility. Th e modernized railway lines, which are part of the Trans-European Transport Network (TEN-T) or European Rail Traffic Management System (ERTMS) corridors, also constitute the network of rail freight corridors (RFC). Pursuant to the requirements of European law, setting the dates for implementing interoperability, the infrastructure of comprehensive networks will be forced to adapt to these requirements. Using the example of the control-command and signalling subsystem, this article outlines the scale of the problem related to the implementation of interoperability in relation to rail-road terminals constituting the comprehensive network of the RFC network.
    Źródło:
    Problemy Kolejnictwa; 2022, 194; 81--95
    0552-2145
    2544-9451
    Pojawia się w:
    Problemy Kolejnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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