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    Wyświetlanie 1-7 z 7
    Tytuł:
    On Implementing IPTV Platform with IPv4 and IPv6 Devices
    Autorzy:
    Batalla, J. M.
    Krawiec, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/309570.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    good practices
    IPTV
    IPv4/IPv6 interoperability
    IPv6
    set top box
    Opis:
    The end of IPv4 addresses is now a reality. Providers not updated to IPv6 will have to hurry up the IPv6 start in its own network. Introduction of IPv6 means not only change of main routers but also change of mentality in operators, applications' programmers besides end users. Even when for the last years the core network is prepared for transferring IPv6 traffic, other built-in parts of the Internet limit the IPv6 start. Examples of these limitations we find in not IPv6-awareness of many applications and services. For instance, voice over IP service, which uses session initiation protocol (SIP) needs to implement IPv6 aware SIP proxies and IPv6 aware AAA (authentication, authorization and accounting) servers as well as adapting application programming interfaces to IPv6. Internet protocol television (IPTV) system includes many different hardware devices, which not always are IPv6 compatible. In this paper, we propose a global solution for integrating all the devices, these one working on IPv4 and these one working on IPv6, under the same IPTV platform. This solution allows end users to receive IPTV stream irrespective of IP protocol used. The proposed solution is particularly relevant for small IPTV systems, which, step by step, are adapting into IPv6.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 2; 31-36
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On Testing IPv6 in Small ISPs Networks
    Autorzy:
    Sienkiewicz, K.
    Gajewski, M.
    Batalla, J. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/309574.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    conformance testing
    interoperability testing
    IPv6
    Opis:
    Testing process allows to detect potential faults of implementation of IPv6 in the phase preceding migration, thus minimizing the risk of problems in IPv6 deployment. In general the IPv6 tests should be performed by all network providers, however the test range should fit their needs. It causes that test range for small network operators (offering basic set of services) could be limited in comparison to larger ISPs. In this paper, we propose an approach to IPv6 tests with regard to IPv6 deployment by small operators. We present tools and specifications for IPv6 tests and propose a test platform optimized to small ISP's needs. The test platform is a dedicated LiveCD distribution based on FreeBSD operating system with IPv6 test environment and set of pre-defined tests. An advantage of this solution is the ability to launch the test tool software on any computer equipped with an Ethernet card and CD-ROM/DVD-ROM drive. LiveCD test tool allows users to execute tests and analyze the results in graphical environment.We believe that this approach will help to simplify and shorten the IPv6 testing process in small ISP's networks.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 2; 37-42
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ID layer for Internet of Things based on Name-Oriented Networking
    Autorzy:
    Batalla, J. M.
    Krawiec, P.
    Gajewski, M.
    Sienkiewicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/308281.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    Future Internet
    ID-based routing
    ID layer
    internet of things (IoT)
    Name-Oriented Networking
    Opis:
    Object and service identification is considered as one of the main challenges in the field of Internet of Things (IoT), which can be solved by the introduction of the so called ID (IDentifier) layer. The objective of this layer is to expose IoT objects and services offered by them, to users. Common approach for ID layer is to create it in overlay manner, on the top of existing network. This paper presents a novel architecture of the ID layer, which is characterized by embedding ID layer functionality into the network plane. Moreover, this approach takes advantage of the Name-Oriented Networking (NON) paradigm. To gain easy access to the IoT objects and services, as well as native support for multicast service, human readable ID-based unified addressing with hierarchical structure was exploited. Additionally, in-network caching of forwarded IoT data, inherited from the NON, helps to reduce total network load and supports applications during collaboration with energy-constrained sensors. Such sensors may enter sleep mode to save energy and then the network nodes can serve requests for sensing data, arrived from applications, by using data stored in nodes’ cache. The paper shows the concept of NON-based ID layer and describes functional architecture of network node paying attention on modules and mechanisms related with ID layer functionality. Primary ID layer processes, i.e., object/service registration, resolution and data forwarding are explained in detail. Moreover, the ID-aware network node was implemented on Linux-based platform and tested to check its forwarding characteristics. The tests showed the performance of the of ID network node in data plane operations, which are the more sensitive for scalability issues.
    Źródło:
    Journal of Telecommunications and Information Technology; 2013, 2; 40-48
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Signaling System Performance on QoE in Next Generation Networks
    Autorzy:
    Batalla, J. M.
    Śliwiński, J.
    Tarasiuk, H.
    Burakowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/308179.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    call setup delay
    class of service
    heterogeneous networks
    next generation networks
    quality of experience
    quality of service
    signaling system
    Opis:
    The first experience of quality by multimedia applications' users takes place during the setup phase of a new connection. If the setup phase is not accepted or "slowly accepted", the confidence of the user decreases. The user becomes more sensitive when he/she pays the connections with assured quality of service (QoS). In this case, the process of call request should be also accomplished with QoS guarantees. This paper presents the signaling sub-system implemented within the EuQoS system. The EuQoS signaling process follows main assumptions of next generation networks (NGN) architecture and performs tasks related with codec agreement between multimedia end users, admission control and resource reservation functions. In this paper, we present analytical, simulation and experimental results showing the impact of signaling system performance on quality of experience (QoE) for the potential users of multi-layer EuQoS system. In particular, the presented approach aims at ensuring user QoE of the connection setup phase by ensuring QoS for transferring signaling messages by the network.
    Źródło:
    Journal of Telecommunications and Information Technology; 2009, 4; 124-137
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On Providing Cloud-awareness to Clients DASH Application by Using DASH over HTTP/2
    Autorzy:
    Batalla, J. M.
    Krawiec, P.
    Negru, D.
    Bruneau-Queyreix, J.
    Borcoci, E.
    Bęben, A.
    Wiśniewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/308126.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    adaptive video streaming
    DASH
    HTTP/2
    Opis:
    Mobile Cloud Networks group together mobile users and clouds containing content servers. Hence, they are an ideal framework for media content delivery. Streamswitching adaptive video players cope well with some limitations of Mobile Cloud Networks as low bandwidth and bandwidth variability in access network. Nonetheless, other limitations, as cloud congestion, are difficult to be managed by the video players. This paper presents a system for discovering fault situations at the cloud (e.g., cloud congestion) and notifying to the video player, which will take appropriate actions for saving the quality of media transmission. In proposed implementation the video application is DASH-capable and adaptation action may be both stream rate adaptation and content server adaptation. The communication between client and server uses "bidirectional" communication feature of HTTP/2 thanks to the new deployed modules running DASH over HTTP/2 in both client's and server's applications.
    Źródło:
    Journal of Telecommunications and Information Technology; 2015, 4; 54-64
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Why is IPv6 Deployment Important for the Internet Evolution?
    Autorzy:
    Batalla, J. M.
    Binczewski, A.
    Burakowski, W.
    Chudzik, K.
    Gajda, B.
    Gajewski, M.
    Grzech, A.
    Krawiec, P.
    Kwiatkowski, J.
    Mrugalski, T.
    Nowicki, K.
    Procyk, W.
    Sienkiewicz, K.
    Szuman, R.
    Śliwiński, J.
    Światowiak, J.
    Wiśniewski, P.
    Woźniak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/309546.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    Internet evolution
    IPv6
    migration
    mobility
    Next Generation Internet
    research
    Opis:
    Replacing the IPv4 protocol with IPv6 on the Internet is currently one of the aims of the European Union policy. The main reason for this replacement is the effeteness of the addresses pool in the IPv4 protocol, which can cause serious complications in the evolution of the Internet and its adaptation in new areas, e.g., in next generation mobile telephony or the so called Internet of Things. Simultaneously, the addressing capabilities of the IPv6 protocol are practically unlimited and its new functionalities increase the attractiveness of its usage. The article discusses the problems connected with the IPv6 deployment on the Internet. Especially, the rules for realization of the IPv6 deployment and rules for cooperation of IPv4 with IPv6 (including cooperation tests) in network infrastructure and in applications are presented. Moreover, the European projects' results and the activity's directions of the national project Future Internet Engineering are discussed.
    Źródło:
    Journal of Telecommunications and Information Technology; 2011, 2; 5-15
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Instytut Łączności wobec wyzwań związanych z wdrażaniem sieci 5G w Polsce
    The National Institute of Telecommunications in the face of challenges for the implementation of 5G networks in Poland
    Autorzy:
    Krawiec, P.
    Mongay Batalla, J.
    Gajewski, M.
    Sienkiewicz, K.
    Wiśniewski, P.
    Latoszek, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/317352.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    5G
    eMBB
    sieci mobilne
    wdrożenie 5G
    5G deployment
    mobile networks
    Opis:
    W artykule zaprezentowano korzyści gospodarcze płynące z wdrożenia nowej generacji sieci mobilnych, tzw. sieci 5G, oraz omówiono wynikające z nich efekty społeczne, w tym spodziewany wpływ na rozwój społeczeństwa informacyjnego. Następnie przedstawiono wyzwania związane z wdrażaniem 5G w Polsce. W głównej mierze wynikają one z obecności barier o charakterze technicznym, ekonomicznym i prawnym, które mogą spowolnić proces wdrażania 5G w Polsce. W artykule przedstawiono również inicjatywy mające na celu identyfikację barier wdrażania sieci 5G oraz potencjalne sposoby ich likwidacji. W tym kontekście przedstawiono działania Instytutu Łączności na rzecz wdrażania 5G w Polsce, w tym poprzez organizację prac w kierowanym przez Ministra Cyfryzacji Porozumieniu na rzecz Strategii „5G dla Polski” oraz uczestnictwo w projekcie 5G@PL realizowanym w ramach strategicznego programu badań naukowych i prac rozwojowych „Społeczny i gospodarczy rozwój Polski w warunkach globalizujących się rynków – Gospostrateg”.
    This paper discusses the economic benefits experienced by implementation of new, the 5th generation of mobile network (5G), and associated social effects, including the expected impact of the 5G on the information society. In the light of the expected development of 5G system, the authors present challenges related to implementation of 5G in Poland. The challenges mainly derive from social, economic and legal barriers that have a negative impact on effective implementation of 5G in Poland. The article presents also initiatives for identifying and removing these barriers. In this context, the paper presents activities of the National Institute of Telecommunications (NIT) for the implementation of 5G in Poland, including the Agreement on the „5G for Poland” Strategy that is led by the Ministry of Digital Affairs and the work performed within the agreement is directed by NIT. Moreover, NIT participates in 5G@PL project under the strategic program of scientific research and development „Social and economic development of Poland in the context of globalization – Gospostrateg”.
    Źródło:
    Telekomunikacja i Techniki Informacyjne; 2018, 1-2; 38-52
    1640-1549
    1899-8933
    Pojawia się w:
    Telekomunikacja i Techniki Informacyjne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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