IEEE/ACM International Symposium on Quality of Service
25–28 June 2021 // Virtual Conference

Welcome to the IEEE/ACM IWQoS 2021!

IEEE/ACM IWQoS 2021 was planned to be held at Tokyo, Japan. Due to the situation of COVID-19 pandemic around the world, however, IEEE/ACM IWQoS 2021 will be offered as an online conference. 

NEW! Congratulations to Best Paper Award Winners and Runner-up Awards Winners. click here

Best Paper Award

LightNF: Simplifying Network Function Offloading in Programmable Networks
Xiang Chen (Peking University, Pengcheng Lab, and Fuzhou University, China); Qun Huang (Peking University, China); Peiqiao Wang (Fuzhou University, China); Zili Meng (Tsinghua University, China); Hongyan Liu (Zhejiang University, China); Yuxin Chen (University of Science and Technology of China, China); Dong Zhang (Fuzhou University, China); Haifeng Zhou (Zhejiang University, China); Boyang Zhou (Zhejiang Lab, China); Chunming Wu (College of Computer Science, Zhejiang University, China)
Efficient Fine-Grained Website Fingerprinting via Encrypted Traffic Analysis with Deep Learning
Meng Shen, Zhenbo Gao and Liehuang Zhu (Beijing Institute of Technology, China); Ke Xu (Tsinghua University, China)

Best Paper Award Runner-up

Understanding and Improving User Engagement in Adaptive Video Streaming
Chunyu Qiao and Jiliang Wang (Tsinghua University, China); Yanan Wang (IQIYI Science & Technology Co., Ltd., China); Yunhao Liu (Tsinghua University & The Hong Kong University of Science and Technology, China); Hu Tuo (IQIYI Science & Technology Co., Ltd., China)

NEWS: Program At Glance & Program are available now! click here

NEWS: Accepted Poster List is available now!  click here

NEWS: Accepted Paper List & Accepted Short Paper List are available now!  click here

Quality of Service has long been the focus of communications researchers worldwide. Since 1993, IWQoS has established itself as a highly reputable forum to present novel ideas on all QoS-related subjects. IWQoS 2021 sets the goal to continue to be a premier symposium and an international forum for presentation and discussion of cutting-edge research in the field. The scope of IWQoS 2021 covers both newest theoretical and experimental research papers.

2021 Patrons


  • National Institute of Information

    and Communications Technology


  • Cisco Systems


  • IEICE Technical

    Committee on Communication Quality