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Congestion Avoidance TCP Improvements for Video Streaming

Authors:
Dirceu Cavendish
Kazumi Kumazoe
Gaku Watanabe
Daiki Nobayashi
Takeshi Ikenaga
Yuji Oie

Keywords: Video streaming; high speed networks; TCP congestion control; Packet retransmissions; Packet loss

Abstract:
Video streaming has become the major source of Internet traffic nowadays. Considering that content delivery network providers have adopted Video over Hypertext Transfer Protocol/Transmission Control Protocol (HTTP/TCP) as the preferred protocol stack for video streaming, understanding TCP performance in transporting video streams has become paramount. In our previous work, we have shown how Slow Start of TCP variants play a definite role in the quality of video experience. In this paper, we research mechanisms within congestion avoidance phase of TCP to enhance video streaming experience. We utilize network performance measurers, as well as video quality metrics, to characterize the performance and interaction between network and application layers of video streams for various network scenarios. We show that video transport performance can be enhanced when playout buffer space is used within TCP congestion avoidance phase.

Pages: 12 to 17

Copyright: Copyright (c) IARIA, 2015

Publication date: October 11, 2015

Published in: conference

ISSN: 2308-443X

ISBN: 978-1-61208-435-0

Location: St. Julians, Malta

Dates: from October 11, 2015 to October 16, 2015