Does TCP’s New Congestion Window Validation Improve HTTP Adaptive Streaming Performance?

Yanev, M., McQuistin, S. and Perkins, C. (2022) Does TCP’s New Congestion Window Validation Improve HTTP Adaptive Streaming Performance? In: 32nd Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV’22), Athlone, Ireland, 17 Jun 2022, pp. 29-35. ISBN 9781450393836 (doi: 10.1145/3534088.3534347)

Abstract

When using HTTP adaptive streaming, video traffic exhibits on-off behaviour with frequent idle periods that can interact poorly with TCP congestion control algorithms. New congestion window validation (New CWV) modifies TCP to allow senders to recover their sending rate more quickly after certain idle periods. While previous work has shown that New CWV can improve transport performance for streaming video, it has not been shown if this translates to improved application performance in terms of playback stability. In this paper, we show that New CWV can reduce video re-buffering events by up to 4%, and limit representation switches by 12%, without any changes to existing rate adaptation algorithms.

• Item Type: Conference Proceedings
• Additional Information: This work is supported by the UK Engineering and Physical Sciences Research Council.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McQuistin, Dr Stephen and Perkins, Dr Colin and Yanev, Mr Mihail
• Authors: Yanev, M., McQuistin, S., and Perkins, C.
• College/School: College of Science and Engineering > School of Computing Science
• ISBN: 9781450393836
• Copyright Holders: Copyright © 2022 The Authors
• First Published: First published in 32nd Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV’22): 29-35
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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