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    Tytuł:
    Mechanizmy QOS w kontekście integrowania sieci IPV4 i IPV6
    Autorzy:
    Malinowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/91345.pdf
    Data publikacji:
    2010
    Wydawca:
    Warszawska Wyższa Szkoła Informatyki
    Tematy:
    system QoS
    sieci IPv6
    sieci IPv4
    protocols IPv6
    protocols IPv4
    Opis:
    Artykuł przedstawia metody klasyfikowania pakietów w kontekście integrowania sieci z protokołem IPv6 i IPv4. IPv6 wprowadza pewne dodatkowe udogodnienia, jak pole flow label w nagłówku pakietu IP, ale realizacja systemu QoS w sieci IPv6 oparta jest na zasadach stosowanych w sieciach IPv4. Szczególnie istotnym staje się wybór miejsca klasyfikowania pakietów i mechanizmu integracji sieci IPv4 z siecią IPv6. Rozważania zawarte w artykule dotyczą realizacji QoS przy zastosowaniu podwójnego stosu, tunelowania i translacji protokołów.
    The article presents methods of classifying packets in the context of integrating the net with IPv6 and IPv4 protocols. IPv6 introduces some additional features (like flow label field in the packet header) and the current support for QoS mechanisms in IPv6 implementations approaches the corresponding QoS support in IPv4. The choice of the place of classifying packets and the mechanism of integrating the IPv4 and IPv6 networks are particularly important. QoS implementations with the use of dual-stack, tunneling and translation protocols are discussed.
    Źródło:
    Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki; 2010, 4, 4; 19-40
    1896-396X
    2082-8349
    Pojawia się w:
    Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On Dimensioning and Routing in the IP QoS System
    Autorzy:
    Góralski, W.
    Pyda, P.
    Dalecki, T.
    Mongay Batalla, J.
    Śliwiński, J.
    Latoszek, W.
    Gut, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/307866.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    IP QoS System
    resource dimensioning
    routing
    Opis:
    This article presents dimensioning and routing solutions in IP QoS System designed during the implementation of the PBZ project: "Next Generation Services and Networks - technical, application and market aspects: Traffic management - IP QoS System". The paper presents the functional architecture together to the description of the functions and methods implemented in the system.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 3; 21-28
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance Evaluation of Signaling in the IP QoS System
    Autorzy:
    Tarasiuk, H.
    Śliwiński, J.
    Arabas, P.
    Jaskóła, P.
    Góralski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/307864.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    IP QoS System
    quality of service
    signaling system
    Opis:
    The IP QoS System is based on next generation networks (NGN) and differentiated services (DiffServ) architectures. Its main part is a signaling system, which allows to send a request from a user to the system for establishing new connection with predefined quality of service assurance. In this paper we present trial results of the proposed signalling system. The experiments were performed to measure setup delay utilizing artificial call generator/analyzer. To obtain results we assumed different distributions of interarrival and call holding times based on the literature. The results show that the setup delay strongly depends on access time to network devices, however also on the assumed call holding time models.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 3; 12-20
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Realization of NGN Architecture for ASON/GMPLS Network
    Autorzy:
    Karczmarek, S.
    Młynarczuk, M.
    Narloch, M.
    Sac, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/307874.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    ASON
    Connection Control Server
    Diameter
    GMPLS
    IP QoS System
    NGN architecture
    RSVP
    Opis:
    For the last decades huge efforts of telecommunication, Internet and media organizations have been focusing on creating standards and implementing one common network delivering multimedia services - Next Generation Network. One of the technologies which are very likely to be used in NGN transport layer is ASON/GMPLS optical network. The implementation of ASON/GMPLS technology using open source software and its results are the subject of this paper. The ASON/GMPLS architecture and its relation to the proposed ITU-T NGN architecture are described. The concept, functional structure and communication among architecture elements as well as the implementation of laboratory testbed are presented. The results of functional tests confirming proper software and testbed operation are stated.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 3; 47-56
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quality of experience in the context of mobile applications
    Autorzy:
    Nawrocki, P.
    Śliwa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/305633.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    quality of experience (QoE)
    mobile application
    mobile device
    Android system
    quality of service (QoS)
    Opis:
    Mobile devices are among the most-popular means of browsing the Internet, sending and receiving e-mail, and sharing content on social networks. People use mobile devices and the applications installed on them in different situations throughout the day. In order to ensure that users are satisfied with a mobile application, its author has to ensure a high Quality of Experience level. The problem of automatic evaluation of the QoE parameter is a very interesting research area. Quality of Experience is a broad issue and requires the analysis of many aspects not only graphical user interfaces but also, inter alia, Quality of Service and user ratings.
    Źródło:
    Computer Science; 2016, 17 (3); 371-385
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A hybrid scheduler for many task computing in big data systems
    Autorzy:
    Vasiliu, L.
    Pop, F.
    Negru, C.
    Mocanu, M.
    Cristea, V.
    Kolodziej, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/907647.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    many task computing
    scheduling heuristics
    QoS
    big data system
    simulation
    obliczenia wielofunkcyjne
    szeregowanie zadań
    duży zbiór danych
    Opis:
    With the rapid evolution of the distributed computing world in the last few years, the amount of data created and processed has fast increased to petabytes or even exabytes scale. Such huge data sets need data-intensive computing applications and impose performance requirements to the infrastructures that support them, such as high scalability, storage, fault tolerance but also efficient scheduling algorithms. This paper focuses on providing a hybrid scheduling algorithm for many task computing that addresses big data environments with few penalties, taking into consideration the deadlines and satisfying a data dependent task model. The hybrid solution consists of several heuristics and algorithms (min-min, min-max and earliest deadline first) combined in order to provide a scheduling algorithm that matches our problem. The experimental results are conducted by simulation and prove that the proposed hybrid algorithm behaves very well in terms of meeting deadlines.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2017, 27, 2; 385-399
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dimensioning aspects of SMS systems in mobile networks
    Autorzy:
    Klink, J.
    Uhl, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/134973.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    SMS
    QoS
    Quality of Experience (QoE)
    text messaging
    queueing system
    dimensioning
    Opis:
    This paper focuses on factors affecting the dimensioning of Short Message Service (SMS) systems in mobile communications networks. Problems associated with Quality of Service (QoS) in modern communications networks in general are described, along with the main parameters that define QoS in SMS systems. The functionality of the SMS in terms of European Telecommunications Standards Institute (ETSI) standards is then explained. The creation of a queuing model is described for an SMS system which is based on ETSI documentation and will be analysed in calculations. The parameter completion rate plays an important role in SMS. Practical aspects of the End-to-End (E2E) delivery time for SMS systems are also discussed. The approach suggested in this paper and the insights gained in the course of this work can be of valuable practical use in the planning and analysis of real SMS systems.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2017, 49 (121); 110-118
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Consideration of a general model of stochastic service curve for communication networks
    Autorzy:
    Wasielewska, K.
    Borys, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117055.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    communication networks
    stochastic service
    communication system
    maritime telecommunications area
    Quality of Service (QoS)
    stochastic network calculus
    modelling of model of stochastic service curve
    stochastic service curve
    Opis:
    In this paper, a general framework for modelling stochastic service curves for communication networks is presented. It connects with each other two approaches to the traffic analysis and performance evaluation of communication systems, namely, the one which is called a deterministic network calculus with its stochastic counterpart. Thereby, it enables to treat any communication traffic in a consistent way. Further, as we show here, it enables also achieving new results. Derivation of the above model is presented in details in this paper. Finally, some hints are given how the method presented in this article could be applied in maritime telecommunications area.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 159-164
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy multi agent system for automatic classification and negotiation of QOS in cloud computing
    Autorzy:
    Bakraouy, Zineb
    Abbass, Wissam
    Baina, Amine
    Bellafkih, Mostafa
    Powiązania:
    https://bibliotekanauki.pl/articles/1837385.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    MAS
    SLA
    negotiation
    QOS
    availability
    web services
    service broker
    classification
    fuzzy logic
    inference system
    fuzzy inference system
    Opis:
    The use of Multi Agents Systems (MAS), Cloud Computing (CC) and Fuzzy Inference System (FIS) in e-commerce has increased in recent years. The purpose of these systems is to enable users of electronic markets to make transactions in the best conditions and to help them in their decisions. The design and implementation is often characterized by the constant manipulation of information, many of which are imperfect. The use of the multi-agent paradigm for the realization of these systems implies the need to integrate mechanisms that take into account the processing of fuzzy information. This makes it necessary to design multi-agent systems (MAS) with fuzzy characteristics. For the modeling and realization of this system, we chose to use the FMAS model. This paper deals with the presentation of the use of the Fuzzy MAS model for the development of a management and decision support application in a virtual market with high availability. After the presentation of the system to be realized in the first section, we describe in the second section the application of the model FMAS for the design and the realization of this system. We then specify the JADE implementation platform and how the fuzzy agents of our model (Expert, Choice and Query) can be implemented using this platform.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 3; 56-64
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Practical Approach to IP Scheduled Throughput Measurements in Dual Connectivity Systems
    Autorzy:
    Zięba, Arkadiusz
    Kollar, Martin
    Tatarczyk, Krzysztof
    Sadowski, Jarosław
    Powiązania:
    https://bibliotekanauki.pl/articles/27311949.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    IP Scheduled Throughput
    distributed system
    Edge computing
    cloud
    Long Term Evolution (LTE)
    Evolved Universal Terrestrial Radio Access Network (E-UTRAN)
    Carrier aggregation (CA)
    UE Throughput
    Key Performance Indicator (KPI)
    Quality of Experience (QoE)
    quality of service (QoS)
    Opis:
    IP scheduled throughput defined according to 3GPP TS 36.314 reflects user throughput regardless of traffic characteristics, and therefore has become one of the most important indicators for monitoring Quality of Service (QoS) of the end user in Evolved Universal Terrestrial Radio Access Network (E-UTRAN). However, networks built on a distributed architecture make the above definition impossible to be applied directly due to the implementation challenges. This paper gives an overview of the classical Long Term Evolution (LTE) architecture as opposed to Dual Connectivity (DC) topology and focuses on a novel method of solving the calculation issue with the IP scheduled throughput measurement in edge computing environment. Experimental results show a good agreement with the real end user perception.
    Źródło:
    International Journal of Electronics and Telecommunications; 2023, 69, 4; 645--654
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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