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Research on Real-time Video Transmission Technology Over Varying Bandwidth Networks

Author: WuLiHua
Tutor: ZengZhiYuan
School: Huazhong University of Science and Technology
Course: Water Resources and Hydropower Engineering
Keywords: Streaming Video transmission Quality of service Congestion Control
CLC: TN919.85
Type: Master's thesis
Year: 2005
Downloads: 193
Quote: 6
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Abstract


The development of the computer network to provide a broad space for development for a variety of multimedia applications , such as video conferencing, video on demand, telemedicine . Real-time video stream is also increasingly becoming the main applications of the Internet . Real-time video transmission on the network bandwidth , delay jitter , packet loss rate , error rate , and have more stringent requirements . The current Internet best-effort service , the bandwidth exists degeneration , can not be provided for real-time streaming service quality assurance . Network congestion and bandwidth to become a major bottleneck of the Internet the upstream Media Services . How to adapt to changes in network bandwidth , to provide users with the best possible service to become the hot issues that need to be addressed . Taking into account the characteristics of the video transmission and the development status , this paper carried out the study of variable bandwidth network environment , real-time video transmission technology . The thesis discussed from the following aspects : ( 1 ) sets out the key technologies of video transmission , such as multimedia data compression technology , streaming media technology , and in-depth analysis of the characteristics and usage of the Real-time Transport Protocol (RTP) . ( 2) discusses a variety of congestion control strategy , and proposed an RTP - based adaptive congestion control strategy . ( 3 ) describes the design and realization of the real-time video transmission system focuses realize RTP-based communications platform . ( 4 ) analysis of the characteristics of the stereo video , study the transmission of real-time three-dimensional video programs , and implementation of key technologies to explore . (5) to make recommendations to the next step requires in-depth work , direction and prospects of the development of video technology outlook .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Image communication, multimedia communication > Image communication networks,multimedia communication network
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