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With the rapid development of Mobile Internet, Instant Messaging (IM) applications begin to transplant from the PC to the mobile terminal, to bring in Mobile Instant Messaging (MIM). In this paper, on the basis of the different network technologies, the MIM frameworks have been divided into three categories ---- telecom based, web based and wIMS2.0 based MIM. To investigate and further optimize the...
To support the emerging trends in mobile interaction, design patterns for distributed software system need adaptations and extensions. In this paper, we describe an implementation framework for providing interactive applications with distributed message-based Model-View-Controller (MVC) architecture using event programming design. The provided solution uses the XMPP protocol for exchanging message...
This paper discusses the viability of using Session Initiation Protocol (SIP) transport for Smart Grid signaling. Smart grids will jointly optimize energy production and demand, in a scenario with millions of smart meters and microenergy sources (e.g. solar panels or electric cars). This will place stringent requirements on telco networks. Information technologies will have to provide scalable signaling...
This paper presents an innovative solution for the deployment and management of vehicular services based on IP Multimedia Subsystem (IMS). We justify our proposal by analysing the advantages of IMS applied in vehicular scenarios. For this purpose we have designed and experimentally developed a platform that consists of an IMS Core, advanced enablers and two IMS Clients. We demonstrate the potential...
With the development of Web Service, Web Instant Messaging is becoming more and more common in our life. On the other hand, REST Web Service sets off a revolution. It changes the traditional structure of web Service, which makes the service uniformed as resources to use. This paper firstly analyzes and compares the existing web instant messaging technology. Then introduces REST web service and gives...
The communication as we know it is about to change, the simple peer-to-peer voice type of calls being replaced by a mix of different media belonging to the same session. Network-based speech processing technologies are increasingly used, adding flexibility, speed and naturalness to various telecom services. For instance, text-to-speech (TTS) synthesis is already incorporated into commercial telephony...
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...
The CoSlide system is a WebDAV-based collaborative system developed as an extension of Jakarta Slide, providing effective asynchronous collaboration using remote resources and various workspaces for group collaboration. Since CoSlide presents only asynchronous collaborative environment, it is desirable to support synchronous communication tools for more effective collaboration. In this paper, we describe...
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