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BBR Performance over Variable Delay Paths on Multipath TCP Video Streaming

Authors:
Masayoshi Kondo
Dirceu Cavendish
Daiki Nobayashi
Takeshi Ikenaga

Keywords: Video streaming, TCP congestion control, Multipath TCP, TCP BBR, Packet Scheduler.

Abstract:
Video streaming makes most of Internet traffic nowadays, being transported over Hypertext Transfer Protocol/Transmission Control Protocol (HTTP/TCP). Being the predominant transport protocol, TCP stack performance in transporting video streams has become paramount, specially with regard to MultiPath Transport Control Protocol (MPTCP) innovation and multiple client device interfaces currently available. An important component of MPTCP is the packet scheduler, which selects on a packet basis the transport path to inject each packet. In this paper, we provide an extensive analysis Bottleneck Bandwidth and Round-trip propagation time (BBR) TCP variant when transporting video streams over Long Term Evolution (LTE) and Wi-Fi access networks, comparing its performance to other available congestion control schemes and various path schedulers. We use network performance level, as well video quality level metrics to characterize multiple path schedulers and the resulting network and application layers. We show that BBR video streaming performance degrades for challenging path delay variation scenarios.

Pages: 18 to 23

Copyright: Copyright (c) IARIA, 2023

Publication date: March 13, 2023

Published in: conference

ISSN: 2308-443X

ISBN: 978-1-68558-062-9

Location: Barcelona, Spain

Dates: from March 13, 2023 to March 17, 2023