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IP Multimedia Subsystem (IMS) known for its prominent service delivery is paving way for applications like Video Voice over IP (VVOIP) on handheld devices too. Android, a software platform from Google, pioneering in middleware and applications domain of handheld devices does not offer support for IMS services by design. Motivated by these observations, we present novel scalable architecture to cater...
One of the major challenges for Real-time applications over next-generation heterogeneous networks is the seamless vertical handoff. These applications require fast and efficient handover that realize service continuity and seamless mobility preserving the security and the QoS. In this paper we propose a new seamless vertical handover solution performing fast authentication while guaranteeing the...
IP multimedia subsystem (IMS) is a new next generation networking architecture that will provide better quality of service, charging infrastructure and security. The basic idea behind IMS is convergence; providing a single interface to different traditional or modern networking architectures allowing better working environment for the end users. IMS is still not commercially adopted and used but research...
The IP multimedia subsystem (IMS) portends major changes for all parties involved in the exchange of digital content and services. As the IMS architecture moves from specifications to implementations, real-world considerations can influence deployments in ways that have noteworthy security implications. In this work, we present and exemplify a systematic security evaluation of IMS deployments using...
The main idea of the third generation (3G) networks is to merge two of the most important communication systems: cellular networks and Internet. The IP multimedia subsystem (IMS) defined by 3GPP is a technology designed to provide robust multimedia services across roaming boundaries and over diverse access technologies. In this communication converged world, the challenging issues are security and...
The rapid spread of IP-based Access technologies and the move towards Core Network Convergence with IMS has led to an explosion in multimedia content delivery across packet networks. IMS provides mobile and multimedia services to the customer along with fixed networks support leading to mobile and fixed convergence. The use of open standard IP protocols, defined by the IETF, allows IMS to easily introduce...
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