A BBR-based congestion control for delay-sensitive real-time applications

Sayed Najmuddin; Muhammad Asim; Kashif Munir; Thar Baker; Zehua Guo; Rajiv Ranjan

doi:10.1007/s00607-020-00829-2

A BBR-based congestion control for delay-sensitive real-time applications

Sayed Najmuddin, Muhammad Asim, Kashif Munir, Thar Baker, Zehua Guo, Rajiv Ranjan

School of Arch, Tech and Eng

Research output: Contribution to journal › Article › peer-review

Abstract

The current User Datagram Protocol (UDP) causes unfairness and bufferbloats to delay sensitive applications due to the uncontrolled congestion and monopolization of available bandwidth.This causes call drops and frequent communication/connection loss in delay sensitive applications such as VoIP. We present a Responsive Control Protocol using Bottleneck Bandwidth and Round trip propagation time (RCP-BBR) as an alternate solution to UDP. RCP-BBR achieves low latency, high throughput, and low call drops ratio by efficiently customizing Transmission Control Protocol (TCP) Bottleneck Bandwidth and Round-trip propagation time (TCP-BBR) congestion control. We conducted comprehensive experiments, and the results show that proposed protocol achieves better throughput over UDP in stable networks. Moreover, in unstable and long-distanced networks, RCP-BBR achieved smaller queues in deep buffers and lower delays as compared to UDP, which performed poorly by keeping delays above the call drop threshold.

Original language	English
Pages (from-to)	2541-2563
Number of pages	23
Journal	Computing
Volume	102
Issue number	12
DOIs	https://doi.org/10.1007/s00607-020-00829-2
Publication status	Published - 6 Jul 2020

Bibliographical note

Publisher Copyright:
© 2020, Springer-Verlag GmbH Austria, part of Springer Nature.

Keywords

Congestion control
Delay sensitive application
UDP
VoIP

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10.1007/s00607-020-00829-2

Cite this

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abstract = "The current User Datagram Protocol (UDP) causes unfairness and bufferbloats to delay sensitive applications due to the uncontrolled congestion and monopolization of available bandwidth.This causes call drops and frequent communication/connection loss in delay sensitive applications such as VoIP. We present a Responsive Control Protocol using Bottleneck Bandwidth and Round trip propagation time (RCP-BBR) as an alternate solution to UDP. RCP-BBR achieves low latency, high throughput, and low call drops ratio by efficiently customizing Transmission Control Protocol (TCP) Bottleneck Bandwidth and Round-trip propagation time (TCP-BBR) congestion control. We conducted comprehensive experiments, and the results show that proposed protocol achieves better throughput over UDP in stable networks. Moreover, in unstable and long-distanced networks, RCP-BBR achieved smaller queues in deep buffers and lower delays as compared to UDP, which performed poorly by keeping delays above the call drop threshold.",

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AU - Guo, Zehua

AU - Ranjan, Rajiv

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AB - The current User Datagram Protocol (UDP) causes unfairness and bufferbloats to delay sensitive applications due to the uncontrolled congestion and monopolization of available bandwidth.This causes call drops and frequent communication/connection loss in delay sensitive applications such as VoIP. We present a Responsive Control Protocol using Bottleneck Bandwidth and Round trip propagation time (RCP-BBR) as an alternate solution to UDP. RCP-BBR achieves low latency, high throughput, and low call drops ratio by efficiently customizing Transmission Control Protocol (TCP) Bottleneck Bandwidth and Round-trip propagation time (TCP-BBR) congestion control. We conducted comprehensive experiments, and the results show that proposed protocol achieves better throughput over UDP in stable networks. Moreover, in unstable and long-distanced networks, RCP-BBR achieved smaller queues in deep buffers and lower delays as compared to UDP, which performed poorly by keeping delays above the call drop threshold.

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A BBR-based congestion control for delay-sensitive real-time applications

Abstract

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Keywords

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