Xin Zhe Khooi

About Me

I am a PhD candidate in the School of Computing at the National University of Singapore (NUS), advised by Prof. Mun Choon Chan. Before my PhD studies, I was a Research Assistant at the NUS-Singtel Cybersecurity R&D Laboratory working closely with Dr. Levente Csikor, Dr. Dinil Mon Divakaran, Prof. Jialin Li and Prof. Min Suk Kang.

Prior to joining NUS, I did my undergraduate studies at the Faculty of Computer Science and Information Technology (FCSIT), University of Malaya, Malaysia, with my senior-year thesis advised by Prof. Teck Chaw Ling.

My CV can be downloaded here (Last Updated: September’25).

Research Interests

My research focuses on systems approaches for enhancing 5G/6G cellular networks. Additionally, I am broadly interested in data center networking, software-defined networking (SDN), and programmable data planes.

News

• [Aug 2025] Work done during my internship at ByteDance, ReCCL, is accepted at EuroSys’26!
• [Aug 2025] A demo of SwapRAN will be presented at ACM MOBICOM’25.
• [Apr 2025] I will be presenting a demo of SwapRAN at the OAI Workshop 2025.
• [Apr 2025] Puppis is accepted at ACM E-ENERGY’25.
• [Dec 2024] Joint work with Anuj Kalia, SwapRAN is accepted at ACM MOBICOM’25!
• [Oct 2024] JUNCTION is accepted at IEEE SECON’24.
• [Oct 2024] Collaborated work, DBench is accepted at 5G-MEMU’24.
• [Apr 2024] Joined the AI Networking Team at ByteDance, Singapore as an intern.
• [Oct 2023] Joint work with our ex-intern, Archit, is accepted at EuroP4’23!
• [Sep 2023] Emerged as 1st runner-up for the ACM SRC at SIGCOMM!
• [Jul 2023] One poster accepted at ACM SIGCOMM’23 Posters and Demos!
• [May 2023] Three collaborated works are accepted at ACM SIGCOMM’23!

Recent Publications

• Handling Network Faults in Distributed AI Training:
  Failover is Now an Option
  Xin Zhe Khooi, Zhuo Jiang, Pan Xie, Zhigang Cui, Meng Wang, Yuze Jin, Pengfei Huo, Dongyang Wang, Lulu Chen, Lei Wang, Liaoyuan Feng, Xiaodong Liu, Peng Li, Qinlong Wang, Yang Bai, Yongcan Wang, Hao Jin, Jinshuai Sun, Shan Lu, Xiang Shi, Yingkai Zhao, Haiquan Chen, Yi Li, Jianxi Ye, Mun Choon Chan
  EuroSys’26. (To appear)
  

• Demo: Towards Seamless 5G vRAN Software Updates
  Xin Zhe Khooi*, Anuj Kalia*, Mun Choon Chan
  ACM MOBICOM’25.
  [Paper] [Code]
  *Joint first-author.

• How to Update Your 5G vRAN
  Xin Zhe Khooi*, Anuj Kalia*, Mun Choon Chan
  ACM MOBICOM’25.
  [Paper] [Code]
  *Joint first-author.

• Revisiting CPU Performance Scaling for Energy-Efficient Packet Processing Applications
  Biqing Qiu, Yixi Chen, Xin Zhe Khooi, Cha Hwan Song, Mun Choon Chan
  ACM E-ENERGY’25
  [Paper] [Code]
  

• JUNCTION: A Scalable Multi-access Solution using Programmable Switches
  Xin Zhe Khooi, Cha Hwan Song, Satis Kumar Permal, Nishant Budhdev, Levente Csikor, Raj Joshi, Mun Choon Chan
  IEEE SECON’24.
  [Paper] [Code]
  

• Towards Continuous Latency Monitoring through Open RAN Interfaces
  Satis Kumar Permal, Yixi Chen, Xin Zhe Khooi, Biqing Qiu, Mun Choon Chan
  5G-MEMU’24.
  [Paper] [Code]
  

• P4EAD: Securing the In-band Control Channels on Commodity Programmable Switches
  Archit Bhatnagar*, Xin Zhe Khooi*, Cha Hwan Song, Mun Choon Chan
  EuroP4’23.
  [Paper] [Code]
  *Joint first-author.

• Poster: Towards Accelerating the 5G Centralized Unit with Programmable Switches
  Xin Zhe Khooi, Archit Bhatnagar, Satis Kumar Permal, Nishant Budhdev, Cha Hwan Song, Mun Choon Chan
  ACM SIGCOMM’23.
  [Paper] [Poster]

• Network Load Balancing with In-network Reordering Support for RDMA
  Cha Hwan Song, Xin Zhe Khooi, Raj Joshi, Inho Choi, Jialin Li, Mun Choon Chan
  ACM SIGCOMM’23.
  [Paper] [Code]

• NeoBFT: Accelerating Byzantine Fault Tolerance Using Authenticated In-Network Ordering
  Guangda Sun, Mingliang Jiang, Xin Zhe Khooi, Yunfan Li, Jialin Li
  ACM SIGCOMM’23.
  [Paper] [Code]

• Masking Corruption Packet Losses in Datacenter Networks with Link-local Retransmission
  Raj Joshi, Cha Hwan Song, Xin Zhe Khooi, Nishant Budhdev, Ayush Mishra, Mun Choon Chan, Ben Leong
  ACM SIGCOMM’23.
  [Paper] [Code]

• DySO: Enhancing Application Offload Efficiency on Programmable Switches
  Cha Hwan Song, Xin Zhe Khooi, Dinil Mon Divakaran, Mun Choon Chan
  Elsevier Computer Networks.
  [Paper] [Code]

• Revisiting Application Offloads on Programmable Switches
  Cha Hwan Song, Xin Zhe Khooi, Dinil Mon Divakaran, Mun Choon Chan
  IFIP Networking’22.
  [Paper] [Code]

• Towards a Framework for One-sided RDMA Multicast
  Xin Zhe Khooi, Cha Hwan Song, Mun Choon Chan
  ACM/IEEE ANCS’21. EuroP4’21.
  [Paper] [Video] [Code]

• Revisiting Heavy-Hitter Detection on Commodity Programmable Switches
  Xin Zhe Khooi, Levente Csikor, Jialin Li, Min Suk Kang, Dinil Mon Divakaran
  IEEE NetSoft’21.
  [Paper] [Video] [Code]

• In-Network Applications: Beyond Single Switch Pipelines
  Xin Zhe Khooi, Levente Csikor, Jialin Li, Dinil Mon Divakaran
  IEEE NetSoft’21. TaPoPF’21.
  [Paper] [Video]

• In-Network Defense Against AR-DDoS Attacks
  Xin Zhe Khooi, Levente Csikor, Min Suk Kang, Dinil Mon Divakaran
  ACM SIGCOMM’20 Poster and Demo Sessions.
  [Paper] [Poster] [Demo Pt. I] [Demo Pt. II] [Code]

• Towards In-Network Time-Decaying Aggregates for Heavy-Hitter Detection
  Xin Zhe Khooi, Levente Csikor, Min Suk Kang, Dinil Mon Divakaran
  ACM SIGCOMM’20 Poster and Demo Sessions.
  [Paper] [Poster]

• DIDA: Distributed In-Network Defense Architecture Against Amplified Reflection DDoS Attacks
  Xin Zhe Khooi, Levente Csikor, Dinil Mon Divakaran, Min Suk Kang
  IEEE NetSoft’20.
  [Paper] [Video] [Code - BMv2] [Code - Tofino]

Teaching

• [Fall’25] CS5229 Advanced Computer Networks (w/ Mun Choon Chan)

• [Fall’23] CS5229 Advanced Computer Networks (w/ Mun Choon Chan)

• [Winter’23] CS2105 Introduction to Computer Networks (w/ Richard Ma and Jithin Vachery)

• [Fall’22] CS3103 Computer Networks Practice (w/ Mun Choon Chan)

• [Winter’22] CS4222 Wireless Networking (w/ Mun Choon Chan)

• [Fall’21] CS3103 Computer Networks Practice (w/ Mun Choon Chan)

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