Selected Academic Articles
† corresponding author · ‡ PI and first-author advisor at ByteDance.
Horizon: A Hyper-Edge Observability Engine for Live Streaming Networks — Liu, Ziqian; Ding, Daqian; Han, Rui†; Xie, Zhendong; Xu, Aifang; Wang, Changqian; Liu, Kefei; Li, Jialin; Xiao, Yunming; Cui, Heming; Qiu, Yiming. SIGCOMM ‘26
HyperEdge: An Edge CDN Infrastructure for Cost-Efficient Video Streaming — Wei, Dehui; Li, Haozhe; Han, Rui‡; Zhang, Jiao; Yan, Ma; Pang, Xiaofei; Peng, Yajie; Xue, Zhichen; Li, Jialin. Best Paper Award. NSDI ‘26 PDF
Skyline: A Cloud Centric Internet Monitoring Engine — Guo, Shixian; Liu, Ziqian; Bai, Yangyang; Chen, Yuan; Zhang, Qi; Lv, Yang; Hu, Jianwei; Li, Gen; Liu, Songlin; Zhong, Zhenyang; Wen, Sisi; Dong, Yongbin; Luo, Feng; Chen, Anjian; Han, Rui; Li, Hang; Xu, Shuai; Huang, Yibo; Liu, Kefei; Qiu, Yiming. NSDI ‘26 PDF
RLive: Robust Delivery System for Scaling Live Streaming Services — Tian, Yu; Lv, Gerui; Wu, Qinghua; Fang, Ruili; Peng, Yajie; Xue, Zhichen; Han, Rui‡; Lin, Chuanqing; Pang, Xiaofei; Liu, Jingxing; Li, Zhenyu. EuroSys ‘26
HELDR: Packet Loss Detection and Retransmission for Live Streaming Hyper-Edge Network — Guo, Peisheng; Zhang, Jiao; Wang, Yuqing; Li, Haozhe; Xue, Zhichen; Peng, Yajie; Han, Rui‡; Pang, Xiaofei; Huang, Tao; Fang, Ruili; Zhu, Zhenpeng; Chen, Weiqi; Wei, Dehui. IWQoS ‘25 PDF
PScheduler: QoE-Enhanced Multipath Scheduler for Video Services in Large-Scale Peer-to-Peer CDNs — Wei, Dehui; Zhang, Jiao; Li, Haozhe; Xue, Zhichen; Peng, Yajie; Pang, Xiaofei; Liu, Yuanjie; Han, Rui‡; Li, Jialin. INFOCOM ‘24 PDF
Multipath Smart Preloading Algorithms in Short-Video Peer-to-Peer CDN Transmission Architecture — Wei, Dehui; Zhang, Jiao; Li, Haozhe; Xue, Zhichen; Peng, Yajie; Han, Rui‡. IEEE Network ‘24 PDF
Selected Research Projects
One National Key R&D Program and 8+ industry-university collaborations; most engagements involve ByteDance production systems and are confidential.
- Multimodal Network End-to-End Transmission Protocol and Congestion Control — National Key R&D Program of China, 2022–2025. Industry-side technical lead, with BUPT and Xi’an Jiaotong University.
Technical Standards
Core drafter representing ByteDance/Volcano Engine.
Technical Requirements for Video Bitrate Adaptation Based on Transport Layer Information — Beijing Volcano Engine Technology Co., Ltd, BUPT. CCSA Industry Standard Draft, 2025.
Technical Requirements for Transport Information Feedback of Streaming Media Applications in Wireless LANs — Beijing Volcano Engine Technology Co., Ltd, BUPT, China Academy of Information and Communications Technology, ZTE Corporation, China United Network Communications Group Co., Ltd. CCSA Industry Standard Draft, 2025.
Technical Requirements for Packet Scheduling in Multipath Network Transmission — Beijing Volcano Engine Technology Co., Ltd, BUPT. CCSA Group Standard Draft, 2025.
Technical Requirements for NAT Device Type Detection over UDP — Beijing Volcano Engine Technology Co., Ltd, BUPT. CCSA Group Standard Draft, 2025.
Selected Patents
18 patents across CN and US jurisdictions, granted and pending.
- A Data Scheduling Method, Device, Electronic Equipment, and Storage Medium — Peng, Yajie; Li, Haozhe; Wei, Dehui; Han, Rui; Xue, Zhichen; Zhang, Jiao. CN118828101B
- Multi-Source Packet Retransmission Algorithm for Live Streaming Scenarios — Li, Haozhe; Guo, Peisheng; Xue, Zhichen; Peng, Yajie; Pang, Xiaofei; Han, Rui; Fang, Ruili; Zhang, Jiao. CN121907412A
- An Edge Server Access Bandwidth Estimation Algorithm for Live Streaming — Li, Haozhe; Peng, Yajie; Pang, Xiaofei; Han, Rui; Fang, Ruili; Xue, Zhichen; Guo, Peisheng; Zhang, Jiao; Liu, Yuanjie. CN121814690A
- A Method and Architecture for Live Streaming CDN Capacity Scaling — Fang, Ruili; Tian, Yu; Peng, Yajie; Han, Rui; Pang, Xiaofei. CN120980076A
- A Method and System for Cross-Border, Ultra-Low Latency Communication in In-Browser Video Classrooms — Han, Rui. CN 201710596812.0
Selected Invited Talks
SIGCOMM Reading Group: HyperEdge — ACM SIGCOMM–CCF Reading Group (Session 32), Xiamen University. Jun 2026. Video (Bilibili)
Hyperscale Multimedia Network Observability and Capacity Evaluation — CAICT Network Intelligent Sensing Symposium. Dec 2025. News · News
Re-exploring Cost Optimization in Edge Multimedia Networks — LiveVideoStackCon ‘23. Nov 2023. Video (YouTube) · Video (Bilibili) · Slides
Global Opportunities for Real-Time Video Networks — Zhongguancun Innovation Street. Mar 2018. Panel with Eric Migicovsky (Y Combinator).
Industry Mentorship & Service
Mentor to 11 graduate students and visiting interns. Alumni include first authors of SIGCOMM/NSDI papers and researchers at Microsoft Research Asia.
- School of Computer Science, Beijing University of Posts and Telecommunications (BUPT) — Industry Mentor, Professional Master’s Program — 2026–
- School of Computer Science, Fudan University — Industry Mentor, Professional Master’s Program — 2024–
Book Translation
- The Engineering Executive’s Primer (Chinese Edition) — by Will Larson, translated by Ray Han. Forthcoming, Posts & Telecom Press, Late 2026. O’Reilly