University of Victoria, British Columbia, Canada
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Jinwei (Clark) Zhao (/dʒaʊ/), 赵
锦威 |
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| PhD student at |
Department of Computer
Science University of Victoria, British Columbia, Canada |
1. Measuring Low-Earth-Orbit Satellite Networks (September 2022 - Present)
We conducted a comprehensive study of Starlink access, core, and global backbone networks.
We open-sourced the first comprehensive LEO satellite network measurement dataset, named LENS.
It includes the collected latency traces from more than 25 Starlink user terminals (UTs/dishes) across five continents
for inside-out measurements,
covering the latency performance from the dish to ground station gateways at the associated user "home PoP".
With outside-in measurements and the help of the RIPE Atlas platform, along with crowdsourced traceroute results
by Starlink community users on Reddit,
we helped the community to map the first near-complete unofficial Starlink global backbone map.
Additionally, our research on Starlink's IPv6
deployment, leveraging a custom target generation mechanism, has successfully identified over 5.5 million
Starlink user routers out of approximately 8 million users as reported by Starlink. This approach significantly
enhanced the capability of outside-in active measurements, overcoming the limitations posed by IPv4 CGNAT, where
only about 60,000 business Starlink users have reserved public IPv4 addresses.
Most recently, we are comparing the performance of Starlink and OneWeb at different locations around the world given
their different technologies, LEO parameters,
and targeted customers, and correlating UT, communicating satellites and landing ground stations without UT revealing
such information to improve the handover performance and behaviors.
1. Low-Earth-Orbit (LEO) Satellite Network Testbed
https://oac.uvic.ca/cccleo
Funded by the NSERC Research Tools and Instruments (RTI) Grant and in partnership with external collaborators
worldwide, we have developed the largest research testbed for LEO satellite networks, comprising over 25 Starlink and
OneWeb user terminals globally in five continents. With additional sponsorship from the Digital Research Alliance of Canada for computing and
storage infrastructure, we are building a distributed research platform open for network researchers worldwide. We
having been releasing open-source measurement datasets at https://github.com/clarkzjw/LENS.
2. Unofficial Starlink GeoIP Map, [Code], [Data]
https://pan.uvic.ca/~clarkzjw/starlink/
The unofficial Starlink GeoIP Map is a visualization of the planned naming and addressing scheme of the Starlink ISP,
representing the association between user IP and Starlink's point-of-presence (PoP).
The data repository contains raw snapshots of the Starlink GeoIP feed https://geoip.starlinkisp.net/feed.csv, DNS PTR Records of the GeoIP feed, monthly latency
snapshots for https://www.starlink.com/map?view=latency, Starlink PeeringDB history and RIPE Atlas
probes.
3. Starlink gRPC protobuf API for Golang
https://github.com/clarkzjw/starlink-grpc-golang
This project includes snapshots of the protobuf Golang API generated from the Starlink user dish (UT) protoset.
• Measuring the OneWeb Satellite Network, [PDF],
[Code], [Slides]
Jinwei Zhao, Owen Perrin, Ali Ahangarpour, Jianping Pan
2025 Network Traffic Measurement and Analysis Conference (TMA'25), doi:
10.23919/TMA66427.2025.11096999
Coverage: c't, APNIC Blog, Internet
Society Pulse Blog, AraWireless
• LENS: A LEO Satellite Network Measurement
Dataset, [Dataset], [Poster] 
Jinwei Zhao, Jianping Pan
2024 ACM 15th Multimedia Systems Conference Open-Source software & Datasets track (MMSys'24 ODS), doi:
10.1145/3625468.3652170
• Low Latency Live Video Streaming over a
Low-Earth-Orbit Satellite Network with DASH, [Code], [Slides] 
Jinwei Zhao, Jianping Pan
2024 ACM 15th Multimedia Systems Conference (MMSys'24), doi: 10.1145/3625468.3647616
DASH-IF Excellence in DASH Award
Third Place
• Measuring the Satellite Links of a LEO
Network, [Slides]
Jianping Pan, Jinwei Zhao, Lin Cai
2024 IEEE 59th International Conference on Communications (ICC'24), doi: 10.1109/ICC51166.2024.10623111
• Measuring a Low-Earth-Orbit Satellite
Network, [arXiv], [Slides]
Jianping Pan, Jinwei Zhao, Lin Cai
2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'23),
doi: 10.1109/PIMRC56721.2023.10294034
27. [Conference] Investigating Web Content
Delivery
Performance over Starlink, [arXiv]
Rohan Bose, Jinwei Zhao, Tanya Shreedhar, Jianping Pan, Nitinder Mohan, Accepted by WWW'26
26. [Conference] Faster Exploration and Exploitation for Communication Environment Awareness in Starlink
Quanwei Zhang, Zhiming Huang, Jinwei Zhao, Ali Ahangarpour, Jianping Pan, Accepted by
IEEE INFOCOM'26
25. [Conference] A Large-Scale IPv6-Based Measurement of the Starlink Network, [arXiv]
Bingsen Wang, Xiaohui Zhang, Shuai Wang, Li Chen, Jinwei Zhao, Jianping Pan, Dan Li, Yong Jiang, Accepted by
IEEE INFOCOM'26
24. [Workshop] GeoFeed in the wild: A case study on StarlinkISP.net, [PDF]
Jianping Pan, Jinwei Zhao
IAB Workshop on IP Address Geolocation (ip-geo) (ipgeows)
23. [Conference] Measuring the OneWeb
Satellite Network, [PDF], [Code], [Slides]
Jinwei Zhao, Owen Perrin, Ali Ahangarpour, Jianping Pan
2025 Network Traffic Measurement and Analysis Conference (TMA'25), doi:
10.23919/TMA66427.2025.11096999
Coverage: c't, APNIC Blog, Internet
Society Pulse Blog, AraWireless
22. [Journal] Low Earth Orbit Satellite Networks: Architecture, Key Technologies,
Measurement, and Open Issues
Jinkai Zheng, Tom H. Luan, Guanjie Li, Jinwei Zhao, Zhisheng Yin, Nan Cheng, Jianping Pan
IEEE Network, doi: 10.1109/MNET.2025.3572141
21. [Conference] A Congestion Control
Test Suite for Real-Time Communication, [Code]
Quanwei Zhang, Zhiming Huang, Jinwei Zhao, Jianping Pan
2025 ACM 16th Multimedia Systems Conference Open-Source software & Datasets track (MMSys'25 ODS), doi:
10.1145/3712676.3718341
20. [Conference] Modeling Packet
Loss of Low-Earth Orbit Satellite Networks, [Code]
Tengfei Liu, Tingting Wang, Ye Li, Jinwei Zhao, Ruifeng Gao, Jianping Pan
2025 IEEE Wireless Communications and Networking Conference Workshops (WCNC'25), doi:
10.1109/WCNC61545.2025.10978438
19. [Conference] FTRL-WRR: Learning-Based
Two-Path Scheduler for LEO Networks
Daoping Li, Jinwei Zhao, Jianping Pan
2025 IEEE Consumer Communications & Networking Conference (CCNC'25), doi: 10.1109/CCNC54725.2025.10976084
18. [Conference] Trajectory-based
Serving Satellite Identification with User Terminal's Field-of-View, [PDF], [Code]
Ali Ahangarpour, Jinwei Zhao, Jianping Pan
2024 ACM 2nd Workshop on LEO Networking and Communication (LEO-NET'24), doi: 10.1145/3697253.3697266
17. [Conference] StarQUIC: Tuning
Congestion Control Algorithms for QUIC over LEO Satellite Networks, [PDF], [Code]
Victor Kamel, Jinwei Zhao, Daoping Li, Jianping Pan
2024 ACM 2nd Workshop on LEO Networking and Communication (LEO-NET'24), doi: 10.1145/3697253.3697271
16. [Journal] An eBPF-Based Trace-Driven
Emulation Method for Satellite Networks, [arXiv], [Code]
Weibiao Tian, Ye Li, Jinwei Zhao, Sheng Wu, Jianping Pan
IEEE Networking Letters, doi: 10.1109/LNET.2024.3472034
15. [Conference] Adaptive Multi-Link Data
Allocation for LEO Satellite Networks
Jinkai Zheng, Tom H. H. Luan, Jinwei Zhao, Guanjie Li, Yao Zhang, Jianping Pan, Nan Cheng
2024 IEEE 43rd Global Communications Conference (GLOBECOM'24), doi: 10.1109/GLOBECOM52923.2024.10901226
14. [Conference] LENS: A LEO Satellite
Network Measurement Dataset, [Dataset], [Poster]
Jinwei Zhao, Jianping Pan
2024 ACM 15th Multimedia Systems Conference Open-Source software & Datasets track (MMSys'24 ODS), doi:
10.1145/3625468.3652170
13. [Conference] Low Latency Live Video
Streaming over a Low-Earth-Orbit Satellite Network with DASH, [Code], [Slides]
Jinwei Zhao, Jianping Pan
2024 ACM 15th Multimedia Systems Conference (MMSys'24), doi: 10.1145/3625468.3647616
DASH-IF Excellence in DASH Award
Third Place
12. [Conference] Measuring the Satellite
Links of a LEO Network, [Slides]
Jianping Pan, Jinwei Zhao, Lin Cai
2024 IEEE 59th International Conference on Communications (ICC'24), doi: 10.1109/ICC51166.2024.10623111
11. [MSc Thesis] Low-Latency Live Video Streaming over Low-Earth-Orbit Satellite Networks
Jinwei Zhao
Available at the University of Victoria Libraries
10. [Dataset] Starlink Latency and Downlink Throughput Measurement Dataset, [Zenodo]
Jinwei Zhao, Jianping Pan, doi: 10.5281/zenodo.10020034
9. [Conference] QoE-driven Joint
Decision-Making for Multipath Adaptive Video Streaming, [Code]
Jinwei Zhao, Jianping Pan
2023 IEEE 42nd Global Communications Conference (GLOBECOM'23), doi: 10.1109/GLOBECOM54140.2023.10437877
8. [Conference] Measuring a
Low-Earth-Orbit Satellite Network, [arXiv], [Slides]
Jianping Pan, Jinwei Zhao, Lin Cai
2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'23),
doi: 10.1109/PIMRC56721.2023.10294034
7. [Journal] Fast Image
Defogging Algorithm Based on Luminance Contrast Enhancement and Saturation Compensation, [PDF]
Xumin Cao, Chunxiao Liu, Jindong Zhang, Yuhang Liu, Jinwei Zhao
Journal of Computer-Aided Design & Computer Graphics, vol. 30, no. 10, pp: 1925-1934, Oct. 2018, doi:
10.3724/SP.J.1089.2018.17000 (In Chinese)
6. [Journal] Atmospheric Light Correction and Transmission Optimization Based Robust Image Dehazing, [PDF]
Yiyun Shen, Chunxiao Liu, Jindong Zhang, Yaqi Shao, Jinwei Zhao
Journal of Computer-Aided Design & Computer Graphics, vol. 29, no.9, pp: 1604-1612, Sep. 2017. (In Chinese)
5. [Journal] Integrating Sky
Detection with Texture Smoothing for Image Defogging, [PDF]
Yiyun Shen, Yaqi Shao, Chunxiao Liu, Huajian Zhou, Jinwei Zhao
Journal of Image and Graphics, vol. 22, no.7, pp. 897-905, Jul. 2017, doi: 10.11834/jig.170030 (In Chinese)
4. [Journal] Sky detection-
and
texture smoothing-based high-visibility haze removal from images and videos
Chunxiao Liu, Yiyun Shen, Yaqi Shao, Jinwei Zhao, Xun Wang
Computer Animation & Virtual Worlds, vol. 28, no. 3-4, p. e1776, May 2017, doi: 10.1002/cav.1776
3. [Journal] Texture
filtering based
physically plausible image dehazing, [PDF]
Chunxiao Liu, Jinwei Zhao, Yiyun Shen, Yanggang Zhou, Xun Wang, Yi Ouyang
The Visual Computer, vol. 32, no. 6, pp. 911-920, Jun. 2016, doi: 10.1007/s00371-016-1259-3
2. [Journal] Dark Channel
Prior-based Image Dehazing with Atmospheric Light Validation and Halo Elimination, [PDF]
Jinwei Zhao, Yiyun Shen, Chunxiao Liu, Yi Ouyang
Journal of Image and Graphics, vol. 21, no. 9, pp. 1221-1228, Aug. 2016, doi: 10.11834/jig.20160911 (In Chinese)
1. [Journal] Dominant Color Detection and Grayscale Propagation Based Color2gray Method, [PDF]
Chunxiao Liu, Zhenyang Zhu, Min Wu, Jinwei Zhao
Journal of Computer-Aided Design & Computer Graphics, vol. 28, no. 3, pp. 433-442, Mar. 2016 (In Chinese)