Dongsu Han

한동수 KAIST 전기및전자공학부 부교수

[CV]   [Google Scholar]

School of Electrical Engineering, KAIST
Building: N1, Office: 814
291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Korea
Email: dongsuh (at)
Email: dongsu.han (at)

I am an associate professor at KAIST (Department of Electrical Engineering and Graduate School of Information Security). I received a Ph.D. from the Computer Science Department at Carnegie Mellon University in 2012. My research interests include networked systems design, distributed systems, Internet architectures, and mobile computing. Students interested in research are welcome to contact me at

Research Projects

Cloud systems and Big Data

Internet/System Security

Internet Content Delivery

Students and Post-Docs

Ph.D: Byoungkwon Choi, Jungmin Kim, Hyunho Yeo, Juhyeng Han, Youngmok Jung, Hwijoon Lim,
Daeyang Cho, Jaehong Kim
Master's: Joonhyuk Lee, Juncheol Ye

Seongmin Kim (Ph.D. 2019; currently an assistant professor at Sungshin Women’s University, formerly at Samsung Research)
Changhyun Lee (Ph.D 2015; co-advised with Sue Moon; currently at ETRI)
Inho Cho (MS 2018; MIT CS Ph.D. program)
Byeoksan Lee (MS 2017; curretly at Line)
Ngoc Quang Nguyen (MS 2019;)
Hejing Li (MS 2019; currently at Max Planck Institute for Software Systems)
Jaehyung Ha
Woohyun Choi (MS 2017; currently at TMaxSoft)
Youjung Shin
Keon Jang (Former visiting scientist/post-doc researcher; Google; Currently an assistant professor at MPI-SWS)

Recent (Select) Publications (full list)

pHPA: A Proactive Autoscaling Framework For Microservice Chain

Byungkwon Choi, Jinwoo Park, Chunghan Lee (Toyota Motor Corporation), Dongsu Han

ACM APNet 2021

Towards Timeout-less Transport In Commodity Datacenter Networks [pdf][code]

Hwijoon Lim, Wei Bai (Microsoft Research), Yibo Zhu (ByteDance), Youngmok Jung, Dongsu Han

ACM EuroSys 2021

Lumos: Improving Smart Home IoT Visibility and Interoperability Through Analyzing Mobile Apps [pdf]

Jeongmin Kim, Steven Y.Ko, Sooel Son, Dongsu Han


Leveraging SIMD parallelism for accelerating network applications

Hejing Li, Juhyeng Han, Dongsu Han


A Secure Middlebox Framework for Enabling Visibility over Multiple Encryption Protocols

Juhyeng Han, Seongmin Kim, Daeyang Cho, Byungkwon Choi, Jaehyeong Ha, Dongsu Han

IEEE/ACM Transactions on Networking

NEMO: Enabling Neural-enhanced Video Streaming on Commodity Mobile Devices

Hyunho Yeo, Chan Ju Chong, Youngmok Jung, Juncheol Ye, Dongsu Han

ACM MobiCom 2020

Neural-Enhanced Live Streaming: Improving Live Video Ingest via Online Learning [web page][pdf]

Jaehong Kim*, Youngmok Jung*, Hyunho Yeo, Juncheol Ye, Dongsu Han


NetKernel: Making Network Stack Part of the Virtualized Infrastructure [pdf]

Zhixiong Niu (Microsoft Research), Hong Xu (City University of Hong Kong), Peng Cheng (Microsoft Research), Qiang Su (City University of Hong Kong), Yongqiang Xiong (Microsoft Research), Tao Wang (New York University), Dongsu Han (KAIST), Keith Winstein (Stanford University)


Cybercriminal Minds: An investigative study of cryptocurrency abuses in the Dark Web

Seunghyeon Lee, Changhoon Yoon, Heedo Kang, Yeonkeun Kim, Yongdae Kim, Dongsu Han, Sooel Son, Seungwon Shin

NDSS 2019

APPx: An Automated App Acceleration Framework for Low Latency Mobile App [pdf]

Byungkwon Choi, Jeongmin Kim, Daeyang Cho, Seongmin Kim, Dongsu Han


Neural Adaptive Content-aware Internet Video Delivery [web page]

Hyunho Yeo, Youngmok Jung, Jaehong Kim, Jinwoo Shin, Dongsu Han


How will Deep Learning Change Internet Video Delivery? [pdf][pptx]

Hyunho Yeo, Sunghyun Do, Dongsu Han

ACM HotNets 2017

Network Stack as a Service in the Cloud [pdf]

Zhixiong Niu, Hong Xu, Dongsu Han, Peng Cheng, Yongqiang Xiong, Guo Chen, Keith Winstein

ACM HotNets 2017

Credit-Scheduled Delay-Bounded Congestion Control for Datacenters [pdf][pptx][[ns2-code]

Inho Cho, Keon Jang, Dongsu Han


SGX-Box: Enabling Visibility on Encrypted Traffic using a Secure Middlebox Module [pdf]

Juhyeng Han, Seongmin Kim, Jaehyeong Ha, Dongsu Han

ACM APNet 2017

Combining ECN and RTT for Datacenter Transport [pdf]

Gaoxiong Zeng, Wei Bai, Ge Chen, Kai Chen, Dongsu Han, Yibo Zhu

ACM APNet 2017

Enhancing Security and Privacy of Tor's Ecosystem by using Trusted Execution Environments [pdf][code]

Seongmin Kim, Juhyeng Han, Jaehyeong Ha, Taesoo Kim, Dongsu Han


mOS: A Reusable Networking Stack for Flow Monitoring Middleboxes [pdf][code]

Muhammad Asim Jamshed, YoungGyoun Moon, Donghwi Kim, Dongsu Han, KyoungSoo Park

USENIX NSDI 2017 (Awarded Best Paper)

Rate-Aware Flow Scheduling for Commodity Data Center Networks [pdf] [bibtex]

Ziyang Li, Wei Bai, Kai Chen, Dongsu Han, Yiming Zhang, Dongsheng Li, Hongfang Yu

IEEE Infocom 2017

SGX-Shield: Enabling Address Space Layout Randomization for SGX Programs [pdf][code]

Jaebaek Seo, Byoungyoung Lee, Seongmin Kim, Ming-Wei Shih, Insik Shin, Dongsu Han, Taesoo Kim

NDSS 2017

Enabling Automatic Protocol Behavior Analysis for Android Applications [pdf][code]

Jeongmin Kim*, Hyunwoo Choi*, Hun Namkung, Woohyun Choi, Byungkwon Choi, Hyunwook Hong, Yongdae Kim, Jonghyup Lee, Dongsu Han (*co-first authors)


Expeditus: Congestion-aware Load Balancing in Clos Data Center Networks [pdf]

Peng Wang, Hong Xu, Zhixiong Niu, Dongsu Han, Yongqiang Xiong

ACM SoCC 2016

DFC: Accelerating String Pattern Matching for Network Applications [pdf][code]

Byungkwon Choi, Jongwook Chae, Muhammad Jamshed, Kyoungsoo Park, Dongsu Han


OpenSGX: An Open Platform for SGX Research [bibtex][pdf][code]

Prerit Jain, Soham Desai, Seongmin Kim, Ming-Wei Shih, JaeHyuk Lee, Changho Choi, Youjung Shin, Taesoo Kim, Brent Byunghoon Kang, Dongsu Han

NDSS 2016

A First Step Towards Leveraging Commodity Trusted Execution Environments for Network Applications [bibtex][pdf*][pptx] (* This version is an online version slightly modified from the original.)

Seongmin Kim, Youjung Shin, Jaehyung Ha, Taesoo Kim, Dongsu Han

ACM HotNets 2015

Breaking and Fixing VoLTE: Exploiting Hidden Data Channels and Mis-implementations [pdf]

Hongil Kim, Dongkwan Kim, Minhee Kwon, Hyungseok Han, Yeongin Jang, Dongsu Han, Taesoo Kim, Yongdae Kim

ACM CCS 2015

Practical, Real-time Centralized Control for CDN-based Live Video Delivery [bibtex][pdf]

Matthew K. Mukerjee, David Naylor, Junchen Jiang, Dongsu Han, Srinivasan Seshan, Hui Zhang


Accurate Latency-based Congestion Feedback for Datacenters [pdf]

Changhyun Lee, Chunjong Park, Keon Jang, Sue Moon, Dongsu Han


Information-Agnostic Flow Scheduling for Commodity Data Center [pdf][code]

Wei Bai, Li Chen, Kai Chen, Dongsu Han, Chen Tian, Hao Wang


Guaranteeing Deadlines for Inter-Datacenter Transfers [pdf][bibtex]

Hong Zhang, Kai Chen, Wei Bai, Dongsu Han, Chen Tian, Hao Wang, Haibing Guan, Ming Zhang

ACM Eurosys 2015

PIAS: Practical Information-Agnostic Flow Scheduling for Data Center Networks [pdf]

Wei Bai, Li Chen, Kai Chen, Dongsu Han, Chen Tian, Weicheng Sun

ACM HotNets 2014

MICA: A Holistic Approach to Fast In-Memory Key-Value Storage [pdf][pptx][code]

Hyeontaek Lim, Dongsu Han, David G. Andersen, Michael Kaminsky


mTCP: a Highly Scalable User-level TCP Stack for Multicore Systems [pdf][pptx][code]

EunYoung Jeong, Shinae Woo, Muhammad Asim Jamshed, Haewon Jeong, Sunghwan Ihm, Dongsu Han, Kyoungsoo Park

USENIX NSDI 2014 (Community Award)

Program Committee