TCP BBR-n interplay with modern AQM in Wireless-N/AC networks: Quest for the golden pair

Effective congestion control on the internet has been a problem since its inception. Transmission Control Protocol (TCP), being the most widely used transport layer protocol tries to mitigate it using a variety of congestion control algorithms. Cubic, Reno, and Bottleneck Bandwidth and Round-trip pr...

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Bibliographic Details
Published in:PloS one Vol. 19; no. 9; p. e0304609
Main Authors: Ahsan, Muhammad, Muhammad, Sajid S.
Format: Journal Article
Language:English
Published: United States Public Library of Science 23.09.2024
Subjects:
Algorithms
Analysis
Bandwidths
Biology and Life Sciences
Bottlenecks
Buffers
Computer and Information Sciences
Congestion
Congestion pricing
Control algorithms
Engineering and Technology
Gels
Health aspects
Internet
Latency
Network latency
Physical Sciences
Proportional integral
Queueing
Queuing
Research and Analysis Methods
TCP (protocol)
Test stands
Traffic congestion
Transmission Control Protocol/Internet Protocol (Computer network protocol)
Wireless access points
Wireless local area networks (Computer networks)
Wireless networks
Pakistan
Nevada
ISSN:1932-6203, 1932-6203
Online Access:Get full text
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Summary:Effective congestion control on the internet has been a problem since its inception. Transmission Control Protocol (TCP), being the most widely used transport layer protocol tries to mitigate it using a variety of congestion control algorithms. Cubic, Reno, and Bottleneck Bandwidth and Round-trip propagation time (BBR) are the most deployed congestion controls. BBR v2 is leading the congestion control race with its superior performance in terms of better throughput and lower latency. Furthermore, Active Queue Management (AQM) algorithms try to mitigate the congestion control at the network layer through active buffer control to avoid bufferbloat. The most efficient congestion control occurs when TCP and AQM work together. Indeed, it is the TCP-AQM algorithm “ Golden pair ” that can result in the most efficient performance. This paper proposes such a novel pair based on our previously tested and published BBR-n (BBR new) with the most effective of the modern AQMs, that completely gels together to provide lower latency in wireless networks based on Wireless N/AC. Real-time experiments were performed using Flent on our physical testbed with BBR-n and modern AQMs such as Fair Queuing (FQ), Constrained Delay (CoDel), Proportional Integral controller Enhanced (PIE), Common Applications Kept Enhanced (Cake) and Flow Queuing Controlled Delay (FQ_CoDel). Various tests done on our physical testbed helped us identify CAKE as the most optimum AQM that fits with our proposed BBR-n while providing optimum throughput and lower latency in 802.11N/AC-based wireless networks.
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Competing Interests: The authors have declared that no competing interests exist.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0304609