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A novel idea presented in this paper is to deploy the Open Flow technology in wireless sensor networks that can lead to a significant achievement in Internet of things and cloud computing arena through network virtualization. Two new abstract layers namely Common platform layer and virtualization layer can be added at the top and bottom of a preset(More)
Currently, 3GPP is reinventing the telecom model of services in wireless Internet — a model that is not well suited to (1) meet the demands for new modes of personal mobile communication, enabled by wireless packet services and multimedia devices, or (2) the ability to deal with increasingly heterogeneous wireless infrastructure (one interpretation of 4G).(More)
This dissertation addresses the applications, which are enabled by combining results from ubiquitous computing, mobile networks, and Voice over IP (VoIP) technologies and support for enabling users and applications to adapt to a more diverse communication environment. The cost to transmit digital information end-to-end is dropping dramatically, along with a(More)
Voice over IP (or VoIP) is a common term to refer to the different protocols that are used to transport real-time voice and video and the necessary signaling by means of the Internet Protocol (IP). H.323 [1] is an ITU-T standard for real-time voice and video communication over packet networks. During the past two years it has become the standard on the(More)
In state-of-the-art Pervasive Computing, it is envisioned that unlimited access to information will be facilitated for anyone and anything. Wireless sensor networks will play a pivotal role in the stated vision. This reflects the phenomena where any situation can be sensed and analyzed anywhere. It makes heterogeneous context ubiquitous. Clustering context(More)
An infrastructure is currently being deployed for delivering multimedia services using IP endto-end. Mobile devices and application resources, because of their computing capabilities, can be enabled with adaptive functionality to shape the services according to the communication conditions and the user's context. This raises the question of how events(More)
Wireless and positioning technologies in combination with Internet’s demonstrated capability to integrate voice and data, further leveraged by the use of software agents, allows for rapid introduction, at low cost, of a rich communication space where artifacts, people, and non-physical entities are integral parts. Given these benefits, we propose an open(More)