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Live media services in mobile environments are fetching more essential with the explosion of technologies. Live Media streaming, in particular, is a promising technology for providing services such as live news clips, live sports. To avoid service interruption when the users keep moving, proper data management strategies must be engaged. In an earlier paper, the ideas and benefits of two-level cooperative media streaming with headlight pre fetching and dynamic chaining were demonstrated and they using static bit rate delivery. In this paper, the authors propose the QoS-based dynamic adaptation techniques for the flexible employment and smooth integration of headlight pre-fetching and dynamic chaining to continuously provide quality streaming services to mobile users. And also it provides Variable bit rate delivery.
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