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    Wyświetlanie 1-3 z 3
    Tytuł:
    The Goals and Benefits of Network Modelling in a Commercial Environment
    Autorzy:
    Smith, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/307824.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    emulation
    modelling
    performance
    service quality
    simulation
    Opis:
    Modelling is a technique that can be used in the development and sizing of networks. It involves building a mathematical representation of a physical system and is often computer based, allowing system behaviour to be investigated based on the variation of key parameters. This pa- per will describe some applicable tools for network modelling and consider a range of applications. Whilst modelling and simulation tools are used extensively to design and size ICT solutions, each tool tends to be targeted at a specific range of applications and a specific user community. It is shown that different tools expect different levels of expertise from their user communities. The benefits of using such tools are described, as are some of their limitations. Modelling and simulation provide a cheaper and faster approach to trying new ideas than building prototypes or test networks. They provide a valuable guide to designing networks and can predict operational outcomes.
    Źródło:
    Journal of Telecommunications and Information Technology; 2013, 1; 25-31
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reliable and High QoS Wireless Communications over Harsh Environments
    Autorzy:
    Bilbao, J.
    Calvo, A.
    Armendariz, I.
    Crespo, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/307844.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    cooperative wireless networks
    multicasting management techniques
    next generation networks
    opportunistic wireless
    quality and performance evaluation
    QoS
    reliability and performance modelling
    reliability of networks
    wireless and mobile networks
    Opis:
    One of the most challenging research fields in which research community has taken a very active role is focused on trying to bring the features of wireless networks into line with the traditional wired solutions. Given the noisy and lossy nature of the wireless medium, it is more difficult to provide a comparable Quality of Service (QoS) and Reliability over wireless networks. This lack of reliability avoids the use of wireless solution in scenarios under harsh environment and mission-critical applications. In this paper we propose an inter-node collaborative schema with the aim of improving the achievable QoS level for multicast streaming, through the use of Network Coding and the algebra it is based on. We also present an implementation of the described algorithm on the OPNET discrete event simulation tool. Experimental results highlighting the performance achieved by the proposed algorithm and its improved efficiency as compared to other solutions are described.
    Źródło:
    Journal of Telecommunications and Information Technology; 2013, 1; 32-40
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applications of commercial data analysis software for testing a telecommunications network
    Autorzy:
    Paczocha, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/309247.pdf
    Data publikacji:
    2002
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    network analysis
    network estimation
    network performance
    quality of service
    PSTN/ISDN
    Opis:
    This paper shows practical aspect in application commercial software to analysis data concerning information from telecommunication network. The following items are discussed: example of network estimation methodology, the main advantages of network testing system delivering information concerning quality of service (QoS) and network performance (NP) from the user's perspective, general testing system description and data analysis model and example forms of presentation.
    Źródło:
    Journal of Telecommunications and Information Technology; 2002, 3; 69-72
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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