Adaptive Near Real-Time SVC Streaming over TCP on MPEG-DASH

• Main Authors: Yen-Hung Lee, 李彥宏
• Other Authors: Cheng-Shong Wu
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/97730995640900745916

碩士 === 國立中正大學 === 通訊工程研究所 === 101 === With the advances in voice, video compression and broadband technology, multimedia streaming services has become part of our daily life. Multimedia streaming using Scalable Video Coding (SVC) mechanism has improved the transmission quality of the multimedia network which meets the requirements of the application in various terminal devices in a distributed heterogeneous network environment. The lack of inbuilt congestion and flow control mechanisms of UDP may cause the occurrence of network congestion. Besides, UDP does not provide retransmission mechanism to ensure the integrity of the video data. Therefore, it is only suitable for closed network. Instead, TCP has the congestion control and retransmission mechanism that provides adjustment of its sending rate according to the magnitude of the network congestion which makes TCP transmit stream suitable for open network. In this paper, we proposed TCP as a transport protocol and added two adaptive mechanism. In stream data, MPEG-DASH is used to encapsulate SVC with three qualities. Two mechanism work the adaptive algorithm on different sides. Pull-based mechanism uses the number of the data received to measure the available bandwidth and decide the stream quality on client. Push-Based mechanism uses the TCP information to measure the bandwidth and decide the stream quality on server. Finally, we integrate the methods above to design a suitable transmission control protocol for SVC multimedia streaming over open network environment.