نتایج جستجو برای: ngn and ims security
تعداد نتایج: 16847629 فیلتر نتایج به سال:
The IP multimedia Subsystem (IMS) is the evolution of the 3G mobile networks towards new generation networks (NGN) that are only IP based. This architectural framework is seen as a key element for achieving network convergence defining a new horizontal integrated service offering, based on a common signaling protocol (SIP) for all multimedia services such as Voice over IP, Video call, or instan...
Evolutionary, a Next Generation Network (NGN) is a significant improvement of a successfully existing network. The third Generation Partnership Project (3GPP) aimed to merge two of the most successful paradigms in communications: cellular networks and the Internet. Within the IP Multimedia Subsystem (IMS) the 3GPP specified a comprehensive and service oriented architecture that includes session...
this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...
this dissertation has six chapter and tree appendices. chapter 1 introduces the thesis proposal including description of problem, key questions, hypothesis, backgrounds and review of literature, research objectives, methodology and theoretical concepts (key terms) taken the literature and facilitate an understanding of national security, national interest and turkish- israeli relations concepts...
Next Generation Networks (NGN) focuses to improve the telecommunication core and access networks and plan to transport all the services by encapsulating them into packets via a single IP based network. IP Multimedia Subsystem (IMS) serves as a Service Delivery Platform for NGN. Conference, one of the main services provided by the IMS, allows the multiple users to communicate at a time. This ser...
Push-to-Talk (PTT) is a half-duplex and one-to-many voice group communication. In past decades, PTT service has been widely adopted in various areas, including practical military, police, security, rescue, and emergency radio communication, etc. In addition, PTT service has also annunciated being an IP Multimedia Subsystem (IMS)-based service defined by Open Mobile Alliance (OMA), which is call...
The paper presents a model for Quality of Service (QoS) signaling for complex multimedia services in the next generation network (NGN), from establishing necessary QoS support at session setup, to further QoS modifications in response to dynamic changes during the session. The model aims to maximize user perceived quality, while taking into account constraints imposed by the user, network, and ...
In regard to the emerging web 2.0 service explosion the telecommunications landscape is evolving rapidly from a voice and messaging centric environment towards an open multimedia service and content market. Whereas historically specific telecommunication services (such as voice telephony) have been provided in dedicated network environments (such as the PSTN/ISDN) with specific service delivery...
The groundwork has been laid for seamless connectivity between fixed and wireless telecommunications networks, and now the focus is on optimizing the transmission media streams across these converged networks. This whitepaper discusses the delivery of media conditioning in IP communication networks with respect to service provider requirements and the impact on network architecture. From Transc...
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