84 research outputs found

    DSL-based triple-play services

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    This research examines the triple play service based on the ADSL technology. The voice over IP will be checked and combined with the internet data by two monitoring programs in order to examine the performance that this service offers and then will be compared with the usual method of internet connection.This research examines the triple play service based on the ADSL technology. The voice over IP will be checked and combined with the internet data by two monitoring programs in order to examine the performance that this service offers and then will be compared with the usual method of internet connection.

    European Information Technology Observatory 1997

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    Solution strategies of service fulfilment Operation Support Systems for Next Generation Networks

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    Suomalainen operatiivisten tukijärjestelmien toimittaja tarjoaa ratkaisuja palvelujen aktivointiin, verkkoresurssien hallintaan ja laskutustietojen keruuseen. Nämä ratkaisut ovat pääosin käytössä langattomissa verkoissa. Tässä tutkimuksessa arvioidaan kyseisten ratkaisujen soveltuvuutta palvelutoimitusprosessien automatisointiin tulevaisuuden verkkoympäristöissä. Tarkastelun kohteena ovat runko- ja pääsyverkkojen kiinteät teknologiat, joiden suosio saavuttaa huippunsa seuraavan 5-10 vuoden aikana. Näissä verkoissa palvelujen, kuten yritys-VPN:n tai kuluttajan laajakaistan, aktivointi vaatii monimutkaisen toimitusprosessin, jonka tueksi tarvitaan ensiluokkaista tukijärjestelmää. Teknologiakatsauksen jälkeen tutkimuksessa verrataan viitteellistä tuoteportfoliota saatavilla oleviin operatiivisten tukijärjestelmien arkkitehtuurisiin viitekehyksiin, ja analysoidaan sen soveltuvuus tulevaisuuden verkkoympäristöjen palvelutoimitusprosessin automatisointiin. Myös palvelutoimitusprosessien automatisointiin soveltuvien tukijärjestelmien markkinatilanne arvioidaan, ja tämän perusteella tutkitaan optimaalisinta sovellusstrategiaa. Lopulta voidaan päätellä, että tuoteportfoliolle parhaiten soveltuvin sovellusalue on kuluttajan laajakaistan, ja siihen liittyvien kehittyneempien IP-palveluiden palvelutoimitusprosessien automatisointi.A Finnish Operation Support Systems (OSS) vendor provides solutions for service activation, network inventory and event mediation. These solutions have mostly been deployed in mobile environments. In this thesis it will be studied how feasible it is to use similar solutions for service fulfilment in Next Generation Networks (NGN). NGN is a broad term that describes some key architectural evolutions in telecommunication core and access networks that will be deployed over the next 5 to 10 years. In these networks service, e.g. Triple Play or Virtual Private Network (VPN), activations require an extensive service fulfilment process that must be supported by first-class OSS. After introducing the NGN technologies, the research compares a reference product portfolio to available service fulfilment frameworks and evaluates the applicability. The study analyses the current state of service fulfilment OSS markets and evaluates various solution strategies. Eventually it will be concluded that the most interesting and adequate solution scenario is residential broadband, including value-added IP services

    Convergence and next generation networks

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    Convergence and next generation networks and their potential impact on policies and regulations is the subject of this report, covering issues of competition in the new fibre environment, convergence of video, voice and data services, the rapid growth of new technologies, such as HDTV and mobile television, and the related demand for spectrum, as well as new possible "divides" between urban and rural areas created by the uneven development of high-speed fibre networks

    Smart PIN: performance and cost-oriented context-aware personal information network

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    The next generation of networks will involve interconnection of heterogeneous individual networks such as WPAN, WLAN, WMAN and Cellular network, adopting the IP as common infrastructural protocol and providing virtually always-connected network. Furthermore, there are many devices which enable easy acquisition and storage of information as pictures, movies, emails, etc. Therefore, the information overload and divergent content’s characteristics make it difficult for users to handle their data in manual way. Consequently, there is a need for personalised automatic services which would enable data exchange across heterogeneous network and devices. To support these personalised services, user centric approaches for data delivery across the heterogeneous network are also required. In this context, this thesis proposes Smart PIN - a novel performance and cost-oriented context-aware Personal Information Network. Smart PIN's architecture is detailed including its network, service and management components. Within the service component, two novel schemes for efficient delivery of context and content data are proposed: Multimedia Data Replication Scheme (MDRS) and Quality-oriented Algorithm for Multiple-source Multimedia Delivery (QAMMD). MDRS supports efficient data accessibility among distributed devices using data replication which is based on a utility function and a minimum data set. QAMMD employs a buffer underflow avoidance scheme for streaming, which achieves high multimedia quality without content adaptation to network conditions. Simulation models for MDRS and QAMMD were built which are based on various heterogeneous network scenarios. Additionally a multiple-source streaming based on QAMMS was implemented as a prototype and tested in an emulated network environment. Comparative tests show that MDRS and QAMMD perform significantly better than other approaches

    Quality of Service based Retrieval Strategy for Distributed Video on Demand on Multiple Servers

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    The recent advances and development of inexpensive computers and high speed networking technology have enabled the Video on Demand (VoD) application to connect to shared-computing servers, replacing the traditional computing environments where each application was having its own dedicated computing hardware. The VoD application enables the viewer to select, from a list of video files, his favorite video file and watch its reproduction at will. Early video on demand applications were based on single video server where video streams are initiated from a single server, then with the increase in the number of the clients who became interested in VoD services, the focus became on Distributed VoD architectures (DVoD) where the context of distribution may be distributed system components, distributed streaming servers, distributed media content etc.The VoD server must handle several issues in order to be able to present a successful service. It has to receive the clients’ requests and analyze them, calculate the necessary resources for each request, and decide whether a request can be admitted or not. Once the request is admitted, the server must schedule the request, retrieve the required video data and send the video data in a timely manner so that the client does not suffer data starvation in his buffer during the video reproduction. So, the overall objective of a VoD service provider is to provide a better Quality of Service (QoS). Some issues related to QoS are-efficient use of bandwidth, providing better throughput etc.One of the important issues is to retrieve the video data from the servers in minimum time and to start the playback of the video at client side with a minimum waiting time. The overall time elapsed in retrieving the video data and starting the playback is known as access time. The thesis presents an efficient retrieval strategy for a distributed VoD environment where the basic objective is to minimize the access time by maintaining the presentation continuity at the client side. We have neglected some of the network parameters which may affect the access time, by assuming a high speed network between the servers and the client. The performance of the strategy has been analyzed and is compared with the referred PAR (Play After Retrieval) strategy. Further, the strategy is also analyzed under availability condition which is a more realistic approach

    Municipal Broadband: Challenges and Perspectives

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    This Article reviews the status and challenges of municipal broadband and provides recommendations for responsible municipal broadband deployment. The Author reviews broadband demand; possible justifications for and the status of municipal broadband deployment; speed, feature, and price considerations; regulatory and technical issues; and relevant laws and legislation. The Author offers specific national policy recommendations and concludes that government/industry partnerships offer perhaps the best solution for municipal broadband deployment where broadband needs aren\u27t met

    Supervisión de la Instalación y Montaje de los Sistemas de Comunicaciones Voz, Data, CCTV y CATV con la Tecnología CAT7A en el Nuevo Hospital San Juan de Dios de la Ciudad de Pisco

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    En este trabajo – informe de experiencia profesional haremos llegar una descripción de los sistemas de comunicación (DATA, VOZ, CCTV Y CATV) instalados en el Hospital San Juan de Dios de la ciudad de Pisco. El sistema consta de una red de Cableado Estructurado Categoría 7A, y de un backbone de Fibra Óptica Multimodo 50/125 um. El Cableado Estructurado que fue implementado fue diseñado conforme a los Estándares ANSI/TIA/EIA e ISO 11801. Estos Estándares definen la estructura del Sistema de Cableado de la siguiente manera: Facilidades de Entrada Cuarto de Equipos Cableado Backbone Cuarto de Telecomunicaciones Cableado Horizontal Área de Trabajo Finalmente se realizará una descripción de las pruebas de certificación de cableado estructurado de fibra óptica y la red de cobre (Cable Categoría 7A). PALABRAS CLAVES Cableado estructurado, fibra óptica, data, voz, cctv y catv

    ACUTA Journal of Telecommunications in Higher Education

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    In This Issue President\u27s Message From the ACUTA CEO Transforming an lT organization to a Service organization: lt\u27s About the People Beating the odds: lmplementation of a University Portal Journey to the Cloud Near Field Technology Opens Doors Legal Considerations in DAS Deployment Managing BYOD and Mobile Devices in a University Environment One-Size-Fits-All Websites Don\u27t Always Fit lnstitutional Excellence Award: Sewanee: The University of the Sout

    Municipal Broadband: Challenges and Perspectives

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    This Article reviews the status and challenges of municipal broadband and provides recommendations for responsible municipal broadband deployment. The Author reviews broadband demand; possible justifications for and the status of municipal broadband deployment; speed, feature, and price considerations; regulatory and technical issues; and relevant laws and legislation. The Author offers specific national policy recommendations and concludes that government/industry partnerships offer perhaps the best solution for municipal broadband deployment where broadband needs aren\u27t met
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