Zixuan Chen
Researcher at Cloud Computing Research Institute, China Telecom
Education
Ph. D. from Fudan University
2020 - 2025 | Shanghai, China
Major in computer network, including distributed deep learning (DDL or DML), datacenter network (DCN), and content delivery network (CDN). (Prof. Yang Xu)
B. S. with Honors from Wuhan University
2016 - 2020 | Wuhan, China
Major in computer science (CS).
Affiliated High School of Fujian Normal University
2013 - 2016 | Fuzhou, China
Major in science.
Experience
Researcher
2025 - Present | Cloud Computing Research Institute, China Telecom
Research on AI infra in cloud computing.
Teaching Assistant for Computer Architecture
2020 - 2022 | Software School of Fudan University (Prof. Yi Li)
Computer architecture course-related QAs, design, and correction of homework and exams, Chisel-based RISC-V CPU evaluation platform design and deployment (Chisel, Docker).
Research Assistant
2019 - 2020 | Future Network Innovation Lab, Fudan University (Prof. Yang Xu)
Study of the content delivery network (CDN) and its load-balance algorithms.
Full Stack Intern
2018 - 2020 | Ninechapter Inc.
Ninechapter front-end development (React, Django), LintCode front-end development (React, Django), and LintCode online code judgment platform development (C++, Docker).
Student Research Intern
2018 - 2019 | Student in Key Laboratory of Aerospace Information Security and Trusted Computing, Wuhan University (Prof. Ming Tang)
A joint study of hardware-side channel attacks and machine learning methods.
Student Research Intern
2017 - 2018 | Sensing Intelligence, Geoscience and Machine Learning Lab, Wuhan University (Prof. Bo Du)
Study related to machine learning, recommendation algorithms, and recommendation systems.
Publication
SIGCOMM
ACM SIGCOMM 2025 | CCF-A, acceptance rate -% (-/-)
1. CClinguist: An Expert-Free Framework for Future-Compatible Congestion Control Algorithm Identification
Jiahui Li, Han Qi, Ruyi Yao, Jialin Wei, Ruoshi Sun, Zixuan Chen, Sen Liu, and Yang Xu
SIGMETRICS
ACM SIGMETRICS 2025 | CCF-B, acceptance rate 17.5% (67/382)
2. NetJIT: Bridging the Gap from Traffic Prediction to Preknowledge for Distributed Machine Learning
Xin Ai, Zijian Li, Yuanyi Zhu, Zixuan Chen, Sen Liu, and Yang Xu
ICDCS
IEEE ICDCS 2025 | CCF-B, acceptance rate -% (-/-)
3. Enhancing In-network Aggregation with Adaptive Gradient Quantization for Multi-tenant Learning
Huifeng Xing, Yinfan Hu, Hao Wang, Yang Chen, Zixuan Chen, Sen Liu, and Yang Xu
ICNP
IEEE ICNP 2024 | CCF-B, acceptance rate 24.3% (50/205)
4. Rina: Enhancing ring-AllReduce with in-network aggregation in distributed model training
Zixuan Chen, Xuandong Liu, Minglin Li, Yinfan Hu, Hao Mei, Huifeng Xing, Hao Wang, Wanxin Shi, Sen Liu, and Yang Xu
SIGCOMM
ACM SIGCOMM 2024 | CCF-A, acceptance rate 16.9% (62/366)
5. vPIFO: Virtualized Packet Scheduler for Programmable Hierarchical Scheduling in High-Speed Networks
Zhiyu Zhang, Shili Chen, Ruyi Yao, Ruoshi Sun, Hao Mei, Hao Wang, Zixuan Chen, Gaojian Fang, Yibo Fan, Wanxin Shi, Sen Liu, and Yang Xu
APNet
APNet 2024 | CCF-C, acceptance rate 27.3% (24/88)
6. UniFL: Enabling Loss-tolerant Transmission in Federated Learning
Zixuan Chen, Yifan Ruan, Sen Liu, and Yang Xu
EuroSys
ACM EuroSys 2024 | CCF-A, acceptance rate -% (-/-)
7. Halflife: An Adaptive Flowlet-based Load Balancer with Fading Timeout in DCNs
Sen Liu, Yongbo Gao, Zixuan Chen, Jiarui Ye, Haiyang Xu, Furong. Liang, Wei Yan, Zerui Tian, Quanwei Sun, Zehua Guo, Yang Xu
IPDPS
IEEE IPDPS 2024 | CCF-B, acceptance rate -% (-/-)
8. MUSE: A Runtime Incrementally Reconfigurable Network Adapting to HPC Real-Time Traffic
Zijian Li, Zixuan Chen, Yiying Tang, Xin Ai, Yuanyi Zhu, Zhigao Zhao, Jiang Shao, Guowei Liu, Sen Liu, Bin Liu, and Yang Xu
IWQoS
IEEE/ACM IWQoS 2024 | CCF-B, Best Paper candidate, acceptance rate -% (-/-)
9. TCAMVisor: High-throughput TCAM Virtualization for Multi-tenant Software Defined Networking
Ruoshi Sun, Hao Mei, Ruyi Yao, Hao Wang, Yiren Zhou, Zixuan Chen, Sen Liu, and Yang Xu
IWQoS
IEEE/ACM IWQoS 2024 | CCF-B, acceptance rate -% (-/-)
10. R-PFC: Enhancing RDMA Network With Restricted And Fine-grained PFC
Xinyi Li, Minglin Li, Xin Ai, Yongbo Gao, Jiang Shao, Zixuan Chen, Sen Liu, and Yang Xu
IWQoS
IEEE/ACM IWQoS 2024 | CCF-B, acceptance rate -% (-/-)
11. Hierarchical Sketch: An Efficient, Scalable and Latency-aware Content Caching Design for Content Delivery Networks
Huifeng Xing, Yuyan Ding, Huiru Huang, Zixuan Chen, Sen Liu, Zehua Guo, Muath Al-Hasan, Mohamed Adel Serhani, and Yang Xu
CLUSTER
IEEE CLUSTER 2023 | CCF-B, acceptance rate 24.6% (32/130)
12. SDT: A Low-cost and Topology-reconfigurable Testbed for Network Research
Zixuan Chen, Zhigao Zhao, Zijian Li, Jiang Shao, Sen Liu, and Yang Xu
TURC
ACM TURC 2023 | Invited poster
13. Augmenting Distributed AI Training with Loss-tolerant Transmission
Zixuan Chen, Lei Shi, Yongbo Gao, Xuandong Liu, Xin Ai, Sen Liu, and Yang Xu
ICPP
ACM ICPP 2023 | CCF-B, Best Paper candidate
14. OSP: Boosting Distributed Model Training with 2-stage Synchronization
Zixuan Chen, Lei Shi, Xuandong Liu, Jiahui Li, Sen Liu, and Yang Xu
IWQoS
IEEE/ACM IWQoS 2023 | CCF-B, acceptance rate 23.5% (62/264)
15. Boosting Distributed Machine Learning Training Through Loss-tolerant Transmission Protocol
Zixuan Chen, Lei Shi, Xuandong Liu, Xin Ai, Sen Liu, and Yang Xu
IWQoS
IEEE/ACM IWQoS 2023 | CCF-B, acceptance rate 23.5% (62/264)
16. Rusen: Rule Semantics Enabler toward Fast TCAM Update for Commodity SDN Switches
Hao Mei, Ruoshi Sun, Ruyi Yao, Chuhao Chen, Cong Luo, Zixuan Chen, Jiahui Li, Sen Liu, and Yang Xu
Patent
In-review
A Receiver-side Multi-origin Scheduling Strategy for PCDN-based Video Streaming and Content Delivery
Patent of Invention, China, 2023 | (with ByteDance)
In-review
A Proactive Redundancy Request Policy for PCDN-based Video Streaming and Content Delivery
Patent of Invention, China, 2023 | (with ByteDance)
Granted
Distributed Aggregate Communication Method, Apparatus, Device, and Storage Medium
Patent of Invention, China, 2023 | Second Author (with Peng Cheng Laboratory)
In-review
A Method for Projecting Large-scale Topologies Using One SDN Switch
Patent of Invention, China, 2022 | First author
Granted
The Best Beautiful Path
Patent of Invention, China, 2017 | Third author
Attendance
CNCC 2025
Oct. 23-25, 2025 | Harbin, Heilongjiang, China
APNet 2025
Aug. 6-8, 2025 | Shanghai, China
ICNP 2024
Oct. 28-31, 2024 | Charleroi, Belgium
ACM SIGCOMM 2024 and APNet 2024
Aug. 4-8, 2024 | Sydney, Australia
ACM EuroSys 2024
Apr. 22-25, 2024 | Athens, Greece
IEEE International Conference on Cluster Computing (Cluster 2023)
Oct. 31-Nov. 3, 2023 | Hilton Santa Fe Historic Plaza, Santa Fe, New Mexico, USA
52nd International Conference on Parallel Processing (ICPP)
Aug. 7-10, 2023 | Cleone Peterson Eccles Alumni House, Salt Lake City, Utah, USA
ACM Turing Award Celebration Conference (TURC) 2023
Jul. 28-30, 2023 | Wanda Reign Wuhan, Wuhan, Hubei, China
ACM Federated Computing Research Conference (FCRC) 2023
Jun. 17-22, 2023 | World Center Marriott, Orlando, Florida, USA
China National Computer Congress (CNCC) 2019
Oct. 17-19, 2019 | Golden Rooster Lake Conference Center, Suzhou, Jiangsu, China
China National Computer Congress (CNCC) 2018
Oct. 25-27, 2018 | Hangzhou International Expo Center, Hangzhou, Zhejiang, China
Honors
1. Outstanding Graduate, 2025, Fudan University
2. Outstanding Member of the CYL, 2025, Fudan University
3. A-class Scholarship, 2024, Fudan University
4. Outstanding Student, 2024, Fudan University
5. A-class Scholarship, 2023, Fudan University
6. Outstanding Student, 2023, Fudan University
7. B-class Scholarship, 2021, Fudan University
8. Outstanding Graduate, 2020, Wuhan University
9. Silver Award, CCF Collegiate Computer System & Programming contest (CCSP), 2019, CCF
10. C-class Scholarship & B-class Outstanding Student (Top 20%), 2019, Wuhan University
11. Silver Award, 2019 ACM-ICPC China Xian National Invitational Programming Contest, 2019, ACM-ICPC
12. B-class Scholarship & B-class Outstanding Student (Top 15%), 2018, Wuhan University
13. CCF Certified Student Member (CSP 310, Top 0.87%), Certified Software Professional (CSP), 2018, China Computer Federation (CCF)
14. Meritorious Winner (Top 6% of 9932 teams), Mathematical Contest in Modeling and Interdisciplinary Contest in Modeling (MCM/ICM), 2018, Consortium for Mathematics and its Applications (COMAP)
15. Second Prize, Beauty of Programming, 2017, Microsoft Research Asia (MSRA)
Languages
Mandarin
Native
English
Daily & CS