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- W69986352 abstract "The concept of an NGN (Next Generation Network) has been introduced to take into consideration new realities in telecommunications industry, characterized by factors such as: competition among operators due to ongoing deregulation of markets, explosion of digital traffic, e.g.,increasing use of the Internet, increasing demand for new multimedia services, increasing demand for a general mobility, convergence of networks and services, etc.This thesis has as subject architecture of service stratum and presents an overview of standards functions defining Quality of Service (QoS) in Next Generation Networks (NGNs). Several standards bodies define QoS control architectures based on their scope of work. Specifically, emphasis is given to control functions, signalling and functional architecture of QoS in service stratum. Firstly, we define meaning of QoS according to view of operator’s network and terminal users. The functional architecture of service stratum and especially part of resource and admission control functions are described in main body. Furthermore, architectures as IntServ and DiffServ, SLAs and COPS protocol are used as providers of QoS. Scheduling and queuing management are necessary to optimize QoS in NGN networks. In this project, we use OPNET simulator in two scenarios to determine construct and control ATM and NGN networks. Finally, collect results of experiments and analyze them." @default.
- W69986352 created "2016-06-24" @default.
- W69986352 creator A5015515816 @default.
- W69986352 date "2009-10-12" @default.
- W69986352 modified "2023-09-27" @default.
- W69986352 title "Μελέτη αρχιτεκτονικής υπηρεσιών-QoS πάνω σε τηλεπικοινωνιακά δίκτυα νέας γενιάς (NGN) (με χρήση εξομοιωτή OPNET)" @default.
- W69986352 hasPublicationYear "2009" @default.
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