ISSN : 1796-2056
Volume : 4    Issue : 3    Date : May 2009

Efficient Frame Schedule Scheme for Real-time Video Transmission Across the Internet Using TCP
Yonghua Xiong, Min Wu, and Weijia Jia
Page(s): 216-223
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The great end-to-end delays are the major factor to influence the visual quality of real-time video
across the Internet using TCP as transport layer protocol. In this paper, we present a video frame
schedule scheme for rate adaptive real-time video transmission over TCP. The scheme schedules
video frames between the application layer sender-buffer, the TCP sender-buffer and TCP
receiver-buffer and can regulate automaticlly the video frame rate and play out buffer delays according
to the network congestion level. The sheme requires only an extra buffer of application layer and can
significantly cut down the end-to-end delays of real-time video without any modification to the network
infrastructure or TCP protocol stack. The performance of the proposed solution is evaluated through
extensive simulations using the NS-2 simulator.

Index Terms
TCP, rate adaptive scheme, real-time video, frame schedule, transmission