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Research on Multicast for IPTV Services in 3Tnet

Author: LiGuoQing
Tutor: XieShengLi；SunGongXian
School: South China University of Technology
Course: Electronics and Communication Engineering
Keywords: High - performance broadband information network IPTV Multicast Multicast protocols
CLC: TP393.09
Type: Master's thesis
Year: 2011
Downloads: 16
Quote: 0
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Abstract


In recent years , the explosive growth of the Internet has not only brought a surge in broadband subscribers , increasing network bandwidth , many IP-based broadband multimedia applications such as video conferencing , IPTV , etc. while driving . For the rapid development of these applications , using only traditional unicast -based point-to-point or point-to-multipoint broadcasting technology , core network bandwidth and equipment will bring a lot of pressure . The face of the high bandwidth demand pressures PTV business , multicast technology is a good choice . Multicast is a technique that allows one or more transmission time to simultaneously transmit a single data packet to a plurality of the recipient's network technology . Multicast source to send packets to a specific multicast group , and only part of the multicast group address in order to receive the data packet . In many video applications , multicast source is often only one, even if the number of users doubled , the backbone bandwidth does not need to be increased , because no matter how many goals address the entire network on a trunk link only send a single The video stream , i.e. the so-called last transmission , the group broadcast . Multicast to improve the data transfer efficiency and reduce the backbone network and the possibility of congestion . In this paper, through the study of high - performance broadband information network technology standards , South China University of Education the CPN 3Tnet transformation program ; study IP multicast technology , and the Internet Group Management Protocol multicast routing protocols and algorithms to explore ; combination of Guangdong Province technology major projects planned 3Tnet HD interactive business operation support platform for building and demonstration application layer multicast technology education the CPN banacast system , the given banacast system multicast program , focus on the banacast system structure analysis ; Finally 3Tnet The education the the CPN combination banacast system demonstration and operational testing .

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