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arXiv · 2308.03350

Robustifying Measurement-Based Congestion Control Algorithms

Zhu Yuxi·Meng Zili·Shen Yixin·Xu Mingwei·Wu Jianping
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Abstract

The design methodology of congestion control algorithms (CCAs) has shifted from control-based to measurement-based in recent years. However, we find that measurement-based CCAs, although having better performance, are not robust enough in fluctuating network environments, which are increasingly common nowadays. In this paper, we propose PAD to make measurement-based CCAs as robust as control-based CCAs in fluctuating environments while enjoying the performance benefits in general. PAD identifies that the root cause is that measurement-based CCAs blindly rely on measurement results, which unfortunately can be inaccurate, and will transiently mislead the CCAs to misbehave. The preliminary design of PAD works as a shim layer between the socket and CCAs so as to scale to any measurement-based CCAs, which turns out to outperform most commonly used CCAs in fluctuating environments.

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Zhu Yuxi, Meng Zili, Shen Yixin, Xu Mingwei, Wu Jianping. 2023-08-07. Robustifying Measurement-Based Congestion Control Algorithms. https://arxiv.org/abs/2308.03350

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