WIP: Leveraging QUIC for a Receiver-driven BBR for Cellular Networks

Haile, Habtegebreil KassayeKarlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed Systems and Communications (DISCO) (author)

Cellular networks are continuously evolving to allow improved throughput and low latency performance for applications. However, it has been shown that, due to buffer over-provisioning, TCP’s standard loss-based congestion control algorithms (CCAs) can cause long delays in cellular networks. The QUIC transport protocol and the Bottleneck Bandwidth and Round-trip propagation time (BBR) congestion control are both proposed in response to shortcomings observed in TCP and loss-based CCAs. Despite its notable advantages, BBR can experience suboptimal delay performance in cellular networks due to one of its underlying design choices: the maximum bandwidth filter at the sender. In this work, we leverage QUIC’s extensibility to enhance BBR. Instead of using the ACK rate observed at the sender side, we apply a more fitting delivery rate calculated at the receiver. Our 5G-trace-based emulation experiments in CloudLab suggest that our modified QUIC could significantly improve latency without any notable effect on the throughput: In particular, in some of our experiments, we observe up to 39% reduction of the round-trip time (RTT) with a worst case throughput reduction of 2.7%.

Grinnemo, Karl-Johan,1968-Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed Systems and Communications Research Group (DISCO)(Swepub:kau)karlgrin (author)
Ferlin-Reiter, SimoneEricsson AB (author)
Hurtig, Per,1980-Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed Systems and Communications Research Group (DISCO)(Swepub:kau)perhurt (author)
Brunström, Anna,1967-Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed Systems and Communications Research Group (DISCO)(Swepub:kau)annabrun (author)
Karlstads universitetInstitutionen för matematik och datavetenskap (from 2013) (creator_code:org_t)

In:2021 IEEE 22nd International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM): Institute of Electrical and Electronics Engineers (IEEE), s. 252-2559781665422635

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