Ayush Mishra
Postdoctoral Researcher | Networked Systems Group | ETH Zürich
Hello World!
I am a Postdoctoral Researcher in the Networked Systems Group at ETH Zürich, advised by Prof. Laurent Vanbever. I did my PhD from the National University of Singapore under the guidance of my advisor, Prof. Ben Leong. Before that, I did my undergrad in Computer Science and Engineering at the National Institute of Technology, Trichy. I am currently working on finding creative solutions to the problems CCA heterogeneity introduces on the Internet, amongst many other things.
I am on the job market! I am looking for tenure-track faculty positions.
My CV, Research Statement, and Teaching Statement.
Selected Publications
| Publication | Links | |
|---|---|---|
| [1] | Managing Congestion Control Heterogeneity on the Internet with Approximate Performance Isolation Proceedings of NSDI 2026 Ayush Mishra, Archit Bhatnagar, Yixuan Zhang, Ben Leong, Gao Ya, Raj Joshi |
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| [2] | Understanding the Modern Internet's Heterogeneous Congestion Control Landscape PhD Thesis Ayush Mishra |
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| [3] | Keeping an Eye on Congestion Control in the Wild with Nebby Proceedings of SIGCOMM 2024 Ayush Mishra, Lakshay Rastogi, Raj Joshi, Ben Leong |
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| [4] | Expanding the Design Space for in-Network Congestion Control on the Internet SIGCOMM Posters and Demos 2024 Ayush Mishra, Harsh Gondaliya, Lingesh Kumaar, Archit Bhatnagar, Raj Joshi, Ben Leong |
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| [5] | Containing the Cambrian Explosion in QUIC Congestion Control Proceedings of IMC 2023 Ayush Mishra, Ben Leong |
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| [6] | Masking Corruption Packet Losses in Datacenter Networks with Link-local Retransmission Proceedings of SIGCOMM 2023 Raj Joshi, Cha Hwan Song, Xin Zhe Khooi, Nishant Budhdev, Ayush Mishra, Mun Choon Chan, Ben Leong |
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| [7] | Are we heading towards a BBR-dominant Internet? Proceedings of IMC 2022 Ayush Mishra, Tiu Wee Han, Ben Leong |
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| [8] | Understanding Speciation in QUIC Congestion Control Proceedings of IMC 2022 Ayush Mishra, Sherman Lim, Ben Leong |
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| [9] | Conjecture: existence of Nash Equilibria in Modern Internet Congestion Control Proceedings of APNet 2021 Ayush Mishra, Jingzhi Zhang, Melodies Sim, Sean Ng, Raj Joshi, Ben Leong |
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| [10] | The Great Internet TCP Congestion Control Census Proceedings of SIGMETRICS 2020 Ayush Mishra, Xiangpeng Sun, Atishya Jain, Sameer Pande, Raj Joshi, Ben Leong |
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| [1] | Managing Congestion Control Heterogeneity on the Internet with Approximate Performance Isolation Proceedings of NSDI 2026 Ayush Mishra, Archit Bhatnagar, Yixuan Zhang, Ben Leong, Gao Ya, Raj Joshi |
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| [2] | Five Blind Men and the Internet: Towards an Understanding of Internet Traffic Pre-print on arXiv Ege Circi, Ayush Mishra, Laurent Vanbever |
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| [3] | Into the Wild: Real-World Testing for ML-based ABR Proceedings of PACMI 2025 Benjamin Hoffman, Alex Dietmueller, Ayush Mishra, Laurent Vanbever |
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| [4] | Making QUIC implementations better with NesQUIC SIGCOMM Posters and Demos 2025 Laurin Brandner, Kevin Marti, Bas Nickel, Ayush Mishra, Gianni Antichi, Laurent Vanbever |
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| [5] | Is Custom Congestion Control a Bad Idea for Circumvention Tools? FOCI 2025 Wayne Wang, Diwen Xue, Piyush Kumar, Ayush Mishra, Roya Ensafi |
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| [6] | Understanding the Modern Internet's Heterogeneous Congestion Control Landscape PhD Thesis Ayush Mishra |
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| [7] | Keeping an Eye on Congestion Control in the Wild with Nebby Proceedings of SIGCOMM 2024 Ayush Mishra, Lakshay Rastogi, Raj Joshi, Ben Leong |
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| [8] | Expanding the Deisgn Space for in-Network Congestion Control on the Internet SIGCOMM Posters and Demos 2024 Ayush Mishra, Harsh Gondaliya, Lingesh Kumaar, Archit Bhatnagar, Raj Joshi, Ben Leong |
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| [9] | Containing the Cambrian Explosion in QUIC Congestion Control Proceedings of IMC 2023 Ayush Mishra, Ben Leong |
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| [10] | Masking Corruption Packet Losses in Datacenter Networks with Link-local Retransmission Proceedings of SIGCOMM 2023 Raj Joshi, Cha Hwan Song, Xin Zhe Khooi, Nishant Budhdev, Ayush Mishra, Mun Choon Chan, Ben Leong |
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| [11] | Are we heading towards a BBR-dominant Internet? Proceedings of IMC 2022 Ayush Mishra, Tiu Wee Han, Ben Leong |
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| [12] | Understanding Speciation in QUIC Congestion Control Proceedings of IMC 2022 Ayush Mishra, Sherman Lim, Ben Leong |
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| [13] | Link Guardian: Mitigating the impact of packet corruption loss with link-local retransmissions Proceedings of APNet 2021 Raj Joshi, Qi Guo, Nishant Budhdev, Ayush Mishra, Mun Choon Chan, Ben Leong |
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| [14] | Conjecture: existence of Nash Equilibria in Modern Internet Congestion Control Proceedings of APNet 2021 Ayush Mishra, Jingzhi Zhang, Melodies Sim, Sean Ng, Raj Joshi, Ben Leong |
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| [15] | The Great Internet TCP Congestion Control Census Proceedings of SIGMETRICS 2020 Ayush Mishra, Xiangpeng Sun, Atishya Jain, Sameer Pande, Raj Joshi, Ben Leong |
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Awards & Service
| Date | Award |
|---|---|
| Jun, 2025 | IMDA Excellence in Computing Prize. |
| Jun, 2025 | Valedictorian, School of Computing Class of 2025, NUS |
| Nov, 2024 | ACM SIGMETRICS Doctoral Dissertation Award (Runner Up). |
| Aug, 2024 | Dean's Graduate Research Excellence Award, NUS School of Computing. |
| Jan, 2024 | Research Achievement Award, NUS School of Computing. |
| Oct, 2023 | NUS SoC Research Incentive Award. |
| Jan, 2023 | Research Achievement Award, NUS School of Computing. |
| Jan, 2022 | Award for Excellence in Teaching, NUS School of Computing. |
| Jan, 2021 | Award for Excellence in Teaching, NUS School of Computing. |
| Jan, 2020 | Research Achievement Award, NUS School of Computing. |
| May, 2014 | INSPIRE Scholarship for Higher Education, DST, Ministry of Science and Technology, Govt of India. |
| May, 2012 | APJ Abdul Kalam Award for Academic Proficiency, GIIS Singapore. |
I am happy to review papers in conferences that offer open-access proceedings. Please reach out to me if you are looking for reviewers in an expertise in Transport Protocols (TCP, QUIC), Congestion Control Algorithms, and Internet measurements. I have previously served/contributed reviews to the following conferences:
- TPC: IMC (2025, 2026)
- Contributed reviews to SIGCOMM (2024), NSDI (2024), INFOCOM (2024), IMC (2023), ICNP (2024, 2023, 2022, 2021), APNet (2021), ACM HotNets (2020)
Talks & Presentations
Keeping an Eye on Congestion Control in the Wild with Nebby
SIGCOMM 2024 | On building future-proof CCA identification tools to keep an eye on CCA deployment on the Internet.
Containing the Cambrian Explosion in QUIC Congestion Control
IMC 2023 | On exposing the full extent of CCA heterogeneity in QUIC, and how we can fix it!
Are We Heading Towards a BBR-Dominant Internet?
IMC 2022 | Looking at BBR's adoption on the Internet with a Game Theoretic point of view.
Understanding Speciation in QUIC Congestion Control
IMC 2022 | Understanding how re-implementations of standard CCAs can differ wildly in popular QUIC stacks.
Identifying CCAs on the Internet
IETF 109 - ICCRG | Presenting the results of our 2019 measurement study on CCA deployment on the Internet at ICCRG.
The Great Internet TCP Congestion Control Census
SIGMETRICS 2020 | Who is deploying which congestion control algorithms on the Internet in 2019?
Keeping an eye on the Internet's CCA landscape
Guest Lecture @Duke | A Guest Lecture for COMPSCI 514/ECE 558 Computer Networks
Containing the Cambrian Explosion in QUIC Congestion Control
IETF 118 - ICCRG | Presenting our 2023 IMC paper on studying CCA implemetations in QUIC.
Are we heading towards a BBR dominant Internet
IETF 116 - ICCRG | Presenting our 2022 IMC paper on BBR's adoption on the Internet.
The Game Thoery behind running CUBIC and BBR on the Internet
IETF 112 - ICCRG | Preseting our 2021 APNet paper on the Game Theory behind competing CUBIC and BBR flows.
Teaching & Mentoring
I have had the pleasure of teaching several Graduate and Undergradute level courses during my PhD and PostDoc.
NUS- CS1010X Programming Methodology
Spring '19, under Ben Leong | (Student rating: 4.1/5) [Feedback] [Analytics] - CS1010X Programming Methodology
Spring '20, under Ben Leong and Tan T Seng | (Student rating: 4.4/5) [Feedback] [Analytics] - CS1231S Discrete Structures
Spring '21, under Aaron Tan | (Student rating: 4.7/5) [Feedback] - CS5229 Advanced Computer Networks
Fall '21, under Ben Leong
- Seminar in Computer Networks
Spring '25, under Laurent Vanbever - Advanced Topics in Communication Networks
Fall '25, under Laurent Vanbever
I have also mentored several graduate and undergratuate students for their thesis and internships
Graduate Undergraduate