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An advanced multimedia system is being standardized in ITU-T SG16. One of the primary features of the multimedia system is the inclusion of QoS functions from the outset. This paper presents a possible QoS framework for the multimedia system, which permits multimedia applications to request and acquire QoS for its applications in multi-provider networks. The presented framework is independent of the...
Mobile users' demand for using the best available network connection encourages mobile network operators (MNOs) to construct multi-access networks managed by all-IP based mobile networks. For such an MNO, the IP Multimedia Subsystem (IMS) is a promising service control infrastructure to provide IP-based multimedia services with QoS guarantee in the multi-access network. The service centralization...
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...
We present the design, implementation and performance analysis of a multimedia management system for home environments. It enables comprehensive access and control of media that is distributed over multiple devices. Based on automatic discovery of the media servers and renderers(i.e. audio or display devices) through UPnP, our application integrates all content in a single view (merging content and/or...
The adoption of the IP Multimedia Subsystem (IMS) has faced a number of challenges. Furthermore, countries with developing infrastructure face additional difficulties. It is important for such countries to overcome these obstacles in order to adopt Next Generation Network (NGN) architectures and compete globally with operators offering IMS services. Funding the deployment of NGNs is a major hurdle...
Due to the system obturation, surveillance service based on dedicated network can not be accessed by different network technologies and has no mobility. The surveillance application based on Internet can not provide security and QoS guarantee. This paper proposes a new architecture which is based on IP Multimedia Subsystem (IMS), and analyzes the advantages of the introduction of IMS. Furthermore,...
Applications of high-quality multimedia embedded systems (HQMES) contain concurrent functionality pieces; they may have a flexible structure consisting of services, components, or tasks. This allows applications to offer different execution possibilities to provide a same (or different) output quality. Since multimedia applications are typically greedy resource consumers, they may interfere one another's...
As a system for guaranteeing Quality of Service of continuous media by traffic control, there exists Integrated Services using Resource ReSerVation Protocol that guarantees bandwidth for object traffics by executing bandwidth control. This system, however, restricts bandwidth for other traffics through the session of object traffics because of its static bandwidth control. Then, to solve the problem,...
In the video and audio chatting system, the transmission control of media stream is one of the most important issues. This paper introduces system solutions and design of key technologies, including the DirectShow framework of real-time audio and video exchanging, combined with MPEG-4 audio and video coding technology. We streamline the RTP protocol to achieve a good audio and video data analysis...
Current trends in smart homes suggest that several multimedia services will soon converge towards common standards and platforms. However this rapid evolution gives rise to several issues related to the management of a large number of multimedia streams in the home communication infrastructure. An issue of particular relevance is how a context acquisition system can be used to support the management...
This paper addresses the end-to-end quality of service (QoS) guarantees and control for multimedia content delivery over heterogeneous networks, with a particular focus on end user terminal perspective. A multimedia terminal which embeds different probes to monitor network conditions and end user perceptual characteristics has been conceived and implemented. A series of QoS mapping between perception...
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