Sung Kah Kay Assistant Professor Jialin Li wins Outstanding Paper Award at NSDI ‘26

A paper co-authored by Jialin Li, Sung Kah Kay Assistant Professor and alumnus Dehui Wei from the Department of Computer Science won the Outstanding Paper Award at NSDI (USENIX Symposium on Networked Systems Design and Implementation) '26, one of the top venues in computer networking and systems research.

The paper, "HyperEdge: An Edge CDN Infrastructure for Cost Efficient Video Streaming," was developed in collaboration with ByteDance. It addresses a costly problem faced by ByteDance's short video services: as ByteDance's platforms grew, delivering video through conventional content delivery networks became increasingly expensive. HyperEdge solves this by a new hybrid video deliver architecture that combines a network of under-utilised edge devices, a centralised tracker system, and an auxiliary CDN. HyperEdge also introduces a novel multi-path transmission protocol that keeps streaming reliable even when individual edge devices are unpredictable.

HyperEdge has been in production at ByteDance to support its popular short video platforms. It is now managing over a hundred thousand edge devices, serving about a hundred million users daily, and saving hundreds of millions of dollars in delivery costs annually.

HyperEdge was presented at NSDI '26's Distributed Data Systems session in May.