| Summary: | 碩士 === 國立交通大學 === 資訊科學與工程研究所 === 97 === P2P multimedia streaming today can be categorized into live streaming and video-on-demand (VoD) streaming; both adopt P2P techniques to provide multimedia streaming services. However, live streaming users can only watch the latest media contents but cannot watch previous ones. Although VoD streaming users can watch what they want at any given time, they cannot watch live media content.
Although there are many studies about P2P live streaming and P2P VoD streaming, there are no P2P streaming systems that can provide both live and time-shift streaming at the same time. In this thesis, we propose a storage policy for P2P time-shift streaming contents. Based on the storage policy, we implement a P2P streaming system that can providing time-shift streaming and live streaming at the same time.
In our streaming system, each peer maintains a short-term storage and a long-term storage. We propose an algorithm to turn part of media contents in short-term storage to long-term storage. Besides, in order to prevent the size of media content exceed the size of storage; we also propose a replacement policy.
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