A Study of Improving Channel Switch and Playback Efficiency in P2P IPTV based on Pre-fetching and Channel Monitoring

• Main Authors: Li, Shu-Hsien, 李書賢
• Other Authors: Chen, Yaw-Chung
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/97454544918488661690

碩士 === 國立交通大學 === 網路工程研究所 === 101 === The growing popularity of optical-fiber-based last mile increases the network bandwidth and benefits the application of media streaming. We can watch a variety of movies or video programs on today’s Internet, which is resulted from the development of Peer-to-Peer technique. Service providers can save a lot of cost on both the hardware and software of the server, without worrying about the rapid growth of user population due to the scalability feature of P2P network. However, since the users can join or leave the P2P network arbitrarily, it would cause the unstable streaming traffic and even the pause of video playback on the receiver side. Moreover, the lack of frame classification such as MPEG I-frame, P-frame, of B-frame makes the player difficult to decode and re-buffer. On the other hand, there are no effective approaches to solve the problem of long delay of channel switching in P2P IPTV system. In this thesis, we propose approaches to reduce the channel switching delay and pre-fetching key frame to prevent the unsmooth playback of media player. The combined effect apparently improve the quality of experience of P2P IPTV. We use the OMNeT++ network simulator to create a P2P system which runs the IPTV application. The numerical result shows that our proposed schemes reduce the channel switching delay and enhance the smoothness of playback significantly.