A BBR-based Congestion Control for Delay-sensitive Real-time Applications

Najmuddin, S, Asim, M, Munir, K, Baker, T, Guo, Z and Ranjan, R (2020) A BBR-based Congestion Control for Delay-sensitive Real-time Applications. Computing. ISSN 0010-485X

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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.

Item Type:	Article
Additional Information:	This is a post-peer-review, pre-copyedit version of an article published in Computing. The final authenticated version is available online at: https://doi.org/10.1007/s00607-020-00829-2
Uncontrolled Keywords:	01 Mathematical Sciences, 08 Information and Computing Sciences
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:	Computer Science and Mathematics
Publisher:	Springer (part of Springer Nature)
Date of acceptance:	22 June 2020
Date of first compliant Open Access:	12 January 2022
Date Deposited:	23 Jun 2020 08:32
Last Modified:	12 Jan 2022 14:15
DOI or ID number:	10.1007/s00607-020-00829-2
URI:	https://researchonline.ljmu.ac.uk/id/eprint/13155

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