Presentation 2023-03-03
BBR Performance over Variable Delay Paths on Multipath TCP Video Streaming
Masayoshi Kondo, Dirceu Dirceu, Daiki Nobayashi, Takeshi Ikenaga,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The demand for video streaming on mobile networks has been steadily rising, with the majority of network traffic being devoted to video. The video quality heavily depends on the performance of TCP. Multiple Path TCP (MPTCP) has been proposed as an extension of TCP, transmitting data via multiple paths at once for improved redundancy and higher throughput. The video quality of MPTCP can vary based on the path scheduler selected and the congestion control applied to each path. Meanwhile, Bottleneck Bandwidth and Round-trip Propagation Time (BBR), a delay-based congestion control algorithm developed by Google, is expected to enhance TCP performance significantly. However, MPTCP’s default scheduler selects the path with the shortest RTT, which can result in decreased video quality when used with the congestion-based BBR algorithm. In this paper, we study evaluates the performance of MPTCP when combining the standard scheduler, CUBIC, with BBR on paths with varying delays during video playback. We also investigate the most suitable MPTCP scheduling method for use with BBR.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Video Streaming / Multipath TCP / MPTCP Packet Scheduler / Congestion Control / TCP BBR
Paper # NS2022-245
Date of Issue 2023-02-23 (NS)

Conference Information
Committee IN / NS
Conference Date 2023/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Convention Centre + Online
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Kunio Hato(Internet Multifeed) / Tetsuya Oishi(NTT)
Vice Chair Tsutomu Murase(Nagoya Univ.) / Takumi Miyoshi(Shibaura Insti of Tech.)
Secretary Tsutomu Murase(KDDI Research) / Takumi Miyoshi(Nagaoka Univ. of Tech.)
Assistant / Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Information Networks / Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) BBR Performance over Variable Delay Paths on Multipath TCP Video Streaming
Sub Title (in English)
Keyword(1) Video Streaming
Keyword(2) Multipath TCP
Keyword(3) MPTCP Packet Scheduler
Keyword(4) Congestion Control
Keyword(5) TCP BBR
1st Author's Name Masayoshi Kondo
1st Author's Affiliation Kyushu Institute of Technology(KIT)
2nd Author's Name Dirceu Dirceu
2nd Author's Affiliation Kyushu Institute of Technology(KIT)
3rd Author's Name Daiki Nobayashi
3rd Author's Affiliation Kyushu Institute of Technology(KIT)
4th Author's Name Takeshi Ikenaga
4th Author's Affiliation Kyushu Institute of Technology(KIT)
Date 2023-03-03
Paper # NS2022-245
Volume (vol) vol.122
Number (no) NS-406
Page pp.pp.446-451(NS),
#Pages 6
Date of Issue 2023-02-23 (NS)