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    Wyświetlanie 1-4 z 4
    Tytuł:
    SDN Controller Mechanisms for Flexible and Customized Networking
    Autorzy:
    Wytrębowicz, J.
    Ries, T.
    Dinh, K. T.
    Kukliński, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/226926.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    software defined networking
    network controller
    SDN management
    Opis:
    Software-Defined Networking (SDN) is seen as the most promising networking technology today. The spread of a new technology depends on the acceptance of the engineers implementing the networks. Typically, when engineers start the conceptualization of new network devices that work with a new paradigm, and that should provide expected business values, they must identify and utilize technical enablers for the defined business use cases. This paper tries to summarize essential SDN applications and defines the technical enablers for advanced and efficient SDN networking. To this end, we identify the core technical mechanisms, expecting to provide a useful analysis for the design of new SDN networks.
    Źródło:
    International Journal of Electronics and Telecommunications; 2014, 60, 4; 299-307
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mobile MPLS-TP : Support the mobility of terminal devices using OAM channel
    Autorzy:
    Pijanka, M. M.
    Różański, G. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/227042.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    telecommunications
    network protocols
    NGN
    MPLS
    OAM
    mobility management
    handoff
    Opis:
    MPLS architecture for transport networks play the significant role in the development of next generation networks, in particular with regard to the guarantee of continuity of communications "end-to-end" through a variety of heterogeneous segments of the telecommunications network. The article presents the concept of Mobile MPLS-TP with the use of OAM channels to support the mobility of users and optimize "Handoff" procedure in a hierarchical network topology.
    Źródło:
    International Journal of Electronics and Telecommunications; 2016, 62, 3; 215-223
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Secure Data Aggregation Mechanism based on Constrained Supervision for Wireless Sensor Network
    Autorzy:
    Wang, Yubo
    Li, Liang
    Ao, Chen
    Zhang, Puning
    Wang, Zheng
    Zhao, Xinyang
    Powiązania:
    https://bibliotekanauki.pl/articles/226140.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Wireless Sensor Network
    security data aggregation
    trust management
    constrained supervision
    Opis:
    The data aggregation process of wireless sensor networks faces serious security problems. In order to defend the internal attacks launched by captured nodes and ensure the reliability of data aggregation, a secure data aggregation mechanism based on constrained supervision is proposed for wireless sensor network, which uses the advanced LEACH clustering method to select cluster heads. Then the cluster heads supervise the behaviors of cluster members and evaluate the trust values of nodes according to the communication behavior, data quality and residual energy. Then the node with the highest trust value is selected as the supervisor node to audit the cluster head and reject nodes with low trust values. Results show that the proposed mechanism can effectively identify the unreliable nodes, guarantee the system security and prolong the network life time.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 2; 259-266
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design of Network Traffic Congestion Controller with PI AQM Based on ITAE Index
    Autorzy:
    Fajri, Misbahul
    Ramli, Kalamullah
    Powiązania:
    https://bibliotekanauki.pl/articles/1844457.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    network congestion control
    active queue management (AQM)
    proportional integral controller
    Nelder-Mead simplex method
    integral of time-weighted absolute error (ITAE)
    Opis:
    Establishing the proper values of controller parameters is the most important thing to design in active queue management (AQM) for achieving excellent performance in handling network congestion. For example, the first well known AQM, the random early detection (RED) method, has a lack of proper parameter values to perform under most the network conditions. This paper applies a Nelder-Mead simplex method based on the integral of time-weighted absolute error (ITAE) for a proportional integral (PI) controller using active queue management (AQM). A TCP flow and PI AQM system were analyzed with a control theory approach. A numerical optimization algorithm based on the ITAE index was run with Matlab/Simulink tools to find the controller parameters with PI tuned by Hollot (PI) as initial parameter input. Compared with PI and PI tuned by Ustebay (PIU) via experimental simulation in Network Simulator Version 2 (NS2) in five scenario network conditions, our proposed method was more robust. It provided stable performance to handle congestion in a dynamic network.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 4; 715-721
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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