Mohamed M. Kassem
Nishanth Sastry
ABSTRACT
LEO satellite "mega-constellations" such as SpaceX's Starlink, Amazon's Kuiper, OneWeb are launching thousands of satellites annually, promising high-bandwidth low-latency connectivity. To quantify the achievable performance of such providers, we carry out a measurement study of the spatial and temporal characteristics as well as the geographic variability of the connectivity provided by Starlink, the current leader in this space. We do this by building and deploying a browser extension that provides data about web performance seen by 28 users from 10 cities across the world. We complement this with performance tests run from three measurement nodes hosted by volunteer enthusiasts in the UK, EU and USA. Our findings suggest that although Starlink offers some of the best web performance figures among the ISPs observed, there are important sources of variability in performance such as weather conditions. The bent-pipe connection to a satellite and back to earth also forms a significant component of the observed latency. We also observe frequent and significant packet losses of up to 50% of packets, which appear to be correlated with handovers between satellites. This has an effect on achievable throughput even when using modern congestion control protocols such as BBR or CUBIC.
Supplemental Material
- 2022. Two-line element set. https://celestrak.org/NORAD/documentation/tle-fmt.php.Google Scholar
- 2022. University of Surrey - Starlink Speedtest. https://chrome.google.com/webstore/detail/university-of-surrey-star/mjgbdghdiohoffoinlicfkihcdkokpbg.Google Scholar
- Ian F. Akyildiz and Ahan Kak. 2019. The Internet of Space Things/CubeSats. IEEE Network 33, 5 (2019), 212--218. Google ScholarDigital Library
- Ian F. Akyildiz and Ahan Kak. 2019. The Internet of Space Things/CubeSats: A ubiquitous cyber-physical system for the connected world. Computer Networks 150 (2019), 134--149. Google ScholarCross Ref
- Akram Al-Hourani. 2021. Session Duration Between Handovers in Dense LEO Satellite Networks. IEEE Wireless Communications Letters 10, 12 (2021), 2810--2814.Google ScholarCross Ref
- Christian T Ardito, Joshua J Morales, Joe Khalife, Ali Abdallah, Zaher M Kassas, et al. 2019. Performance evaluation of navigation using LEO satellite signals with periodically transmitted satellite positions. In Proceedings of the 2019 International Technical Meeting of The Institute of Navigation. 306--318.Google ScholarCross Ref
- Debopam Bhattacherjee, Simon Kassing, Melissa Licciardello, and Ankit Singla. 2020. In-Orbit Computing: An Outlandish Thought Experiment?. In Proceedings of the 19th ACM Workshop on Hot Topics in Networks (Virtual Event, USA) (HotNets '20). Association for Computing Machinery, New York, NY, USA, 197--204. Google ScholarDigital Library
- Debopam Bhattacherjee and Ankit Singla. 2019. Network topology design at 27,000 km/hour. In Proceedings of the 15th International Conference on Emerging Networking Experiments And Technologies. 341--354.Google ScholarDigital Library
- Tom Butash, Peter Garland, and Barry Evans. 2021. Non-geostationary satellite orbit communications satellite constellations history. International Journal of Satellite Communications and Networking 39, 1 (2021), 1--5. arXiv:https://onlinelibrary.wiley.com/doi/pdf/10.1002/sat.1375 Google ScholarDigital Library
- Luca Caviglione, Nedo Celandroni, Matteo Collina, Haitham Cruickshank, Gorry Fairhurst, Erina Ferro, Alberto Gotta, Michele Luglio, Cesare Roseti, Ahmed Abdel Salam, et al. 2015. A deep analysis on future web technologies and protocols over broadband GEO satellite networks. International Journal of Satellite Communications and Networking 33, 5 (2015), 451--472.Google ScholarCross Ref
- CeleStark. 2022. Satellite Tracking. https://www.celestrak.com/.Google Scholar
- Stanley CF Chan, KM Chan, Ke Liu, and Jack YB Lee. 2013. On queue length and link buffer size estimation in 3G/4G mobile data networks. IEEE Transactions on Mobile Computing 13, 6 (2013), 1298--1311.Google Scholar
- Stephen Clark. 2022. SpaceX passes 2,500 satellites launched for Starlink Internet Network. https://spaceflightnow.com/2022/05/13/spacex-passes-2500-satellites-launched-for-companys-starlink-network/Google Scholar
- Starlink Community. 2021. Dishy grpc client tools. https://github.com/starlink-community/starlink-cli.Google Scholar
- Kristin Cooke. 2022. When Will Starlink Internet Be Available? https://www.satelliteinternet.com/resources/starlink-beta-sign-up/Google Scholar
- Damir. 2020. Capacity of Starlink Network. https://lilibots.blogspot.com/2020/11/capacity-of-starlink-network.html.Google Scholar
- Bradley Denby and Brandon Lucia. 2020. Orbital Edge Computing: Nanosatellite Constellations as a New Class of Computer System. Association for Computing Machinery, New York, NY, USA, 939--954. Google ScholarDigital Library
- Jörg Deutschmann, Kai-Steffen Hielscher, and Reinhard German. 2019. Satellite internet performance measurements. In 2019 International Conference on Networked Systems (NetSys). IEEE, 1--4.Google ScholarCross Ref
- John Farserotu and Ramjee Prasad. 2000. A survey of future broadband multi-media satellite systems, issues and trends. IEEE Communications Magazine 38, 6 (2000), 128--133.Google ScholarDigital Library
- FCC. 2021. FCC grants SpaceX's Satellite Broadband Modification Application. https://www.fcc.gov/document/fcc-grants-spacexs-satellite-broadband-modification-applicationGoogle Scholar
- P. Fraise, B. Coulomb, B. Monteuuis, and J.-L. Soula. 2000. SkyBridge LEO satellites: optimized for broadband communications in the 21/sup st/ century. In 2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484), Vol. 1. 241--251 vol.1. Google ScholarCross Ref
- Zhixiang Gao, Aijun Liu, and Xiaohu Liang. 2020. The Performance Analysis of Downlink NOMA in LEO Satellite Communication System. IEEE Access 8 (2020), 93723--93732. Google ScholarCross Ref
- Seyed Ehsan Ghoreishi, Dmytro Karamshuk, Vasilis Friderikos, Nishanth Sastry, Mischa Dohler, and A Hamid Aghvami. 2019. A cost-driven approach to caching-as-a-service in cloud-based 5G mobile networks. IEEE Transactions on Mobile Computing 19, 5 (2019), 997--1009.Google ScholarCross Ref
- Mark Handley. 2018. Delay is not an option: Low latency routing in space. In Proceedings of the 17th ACM Workshop on Hot Topics in Networks. 85--91.Google ScholarDigital Library
- Yannick Hauri, Debopam Bhattacherjee, Manuel Grossmann, and Ankit Singla. 2020. "Internet from Space" without Inter-Satellite Links. In Proceedings of the 19th ACM Workshop on Hot Topics in Networks (Virtual Event, USA) (HotNets '20). Association for Computing Machinery, New York, NY, USA, 205--211. Google ScholarDigital Library
- Space Exploration Holdings. 2020. Application for modification of authorization for the SpaceX NGSO satellite system. https://fcc.report/IBFS/SAT-LOA-20200526-00055/2378669Google Scholar
- IPinfo. 2022. IPinfo API. https://ipinfo.io/developers/.Google Scholar
- Ahan Kak and Ian F. Akyildiz. 2019. Large-Scale Constellation Design for the Internet of Space Things/CubeSats. In 2019 IEEE Globecom Workshops (GC Wkshps). 1--6. Google ScholarCross Ref
- Dmytro Karamshuk, Nishanth Sastry, Mustafa Al-Bassam, Andrew Secker, and Jigna Chandaria. 2016. Take-away TV: Recharging work commutes with predictive preloading of catch-up TV content. IEEE Journal on Selected Areas in Communications 34, 8 (2016), 2091--2101.Google ScholarDigital Library
- Dmytro Karamshuk, Nishanth Sastry, Andrew Secker, and Jigna Chandaria. 2015. ISP-friendly peer-assisted on-demand streaming of long duration content in BBC iPlayer. In 2015 IEEE Conference on Computer Communications (INFOCOM). IEEE, 289--297.Google ScholarCross Ref
- Simon Kassing, Debopam Bhattacherjee, André Baptista Águas, Jens Eirik Saethre, and Ankit Singla. 2020. Exploring the "Internet from Space" with Hypatia. In Proceedings of the ACM Internet Measurement Conference (Virtual Event, USA) (IMC '20). Association for Computing Machinery, New York, NY, USA, 214--229. Google ScholarDigital Library
- Victor Le Pochat, Tom Van Goethem, Samaneh Tajalizadehkhoob, Maciej Korczyński, and Wouter Joosen. 2019. Tranco: A Research-Oriented Top Sites Ranking Hardened Against Manipulation. In Proceedings of the 26th Annual Network and Distributed System Security Symposium (NDSS 2019). Google ScholarCross Ref
- Librespeed. 2021. Speedtest. https://github.com/librespeed/speedtest.Google Scholar
- Kuiper Systems LLC. 2021. Application for authority to launch and operate a non-geostationary satellite orbit system in v-band and ku-band frequencies. https://fcc.report/IBFS/SAT-LOA-20211104-00145/13337525Google Scholar
- François Michel, Martino Trevisan, Danilo Giordano, and Olivier Bonaventure. 2022. A First Look at Starlink Performance. In Proceedings of the 2022 Internet Measurement Conference. Google ScholarDigital Library
- Remmy Musumpuka, Tom M. Walingo, and J. Macgregor Smith. 2016. Performance Analysis of Correlated Handover Service in LEO Mobile Satellite Systems. IEEE Communications Letters 20, 11 (2016), 2213--2216. Google ScholarCross Ref
- Thang K Nguyen, Chuyen T Nguyen, Hoang D Le, and Anh T Pham. 2021. TCP performance over satellite-based hybrid FSO/RF vehicular networks: Modeling and analysis. IEEE Access 9 (2021), 108426--108440.Google ScholarCross Ref
- Jordan Novet. 2021. Google wins cloud deal from Elon Musk's SpaceX for Starlink internet connectivity. https://www.cnbc.com/2021/05/13/google-cloud-wins-spacex-deal-for-starlink-internet-connectivity.htmlGoogle Scholar
- OpenWeather. 2022. Weather icons. https://openweathermap.org/weather-conditions.Google Scholar
- Chol Hyun Park, Phillipe Austria, Yoohwan Kim, and Ju-Yeon Jo. 2022. MPTCP Performance Simulation in Multiple LEO Satellite Environment. In 2022 IEEE 12th Annual Computing and Communication Workshop and Conference (CCWC). IEEE, 0895--0899.Google Scholar
- Daniel Perdices, Martino Perna, Gianluca and Trevisan, Danilo Giordano, and Marco Mellia. 2022. When Satellite is All You Have When Satellite is All You Have: Watching the Internet from 550 ms. In Proceedings of the 2022 Internet Measurement Conference. Google ScholarDigital Library
- Yubi Qian, Lu Ma, and Xuwen Liang. 2019. The performance of chirp signal used in LEO satellite Internet of Things. IEEE Communications letters 23, 8 (2019), 1319--1322.Google ScholarCross Ref
- Aravindh Raman, Dmytro Karamshuk, Nishanth Sastry, Andrew Secker, and Jigna Chandaria. 2018. Consume local: Towards carbon free content delivery. In 2018 IEEE 38th International Conference on Distributed Computing Systems (ICDCS). IEEE, 994--1003.Google ScholarCross Ref
- Aravindh Raman, Nishanth Sastry, Nader Mokari, Mostafa Salehi, Tooba Faisal, Andrew Secker, and Jigna Chandaria. 2018. Care to share? an empirical analysis of capacity enhancement by sharing at the edge. In Proceedings of the 2018 on Technologies for the Wireless Edge Workshop. 27--31.Google ScholarDigital Library
- Aravindh Raman, Nishanth Sastry, Arjuna Sathiaseelan, Jigna Chandaria, and Andrew Secker. 2017. Wi-stitch: Content delivery in converged edge networks. In Proceedings of the Workshop on Mobile Edge Communications. 13--18.Google ScholarDigital Library
- r/Starlink Subreddit. 2021. Neighbor has Starlink - but website says not available. Is this possible? https://www.reddit.com/r/Starlink/comments/m8wof7/neighbor_has_starlink_but_website_says_not/.Google Scholar
- Raffaello Secchi, AC Mohideen, and Gorry Fairhurst. 2018. Performance analysis of next generation web access via satellite. International Journal of Satellite Communications and Networking 36, 1 (2018), 29--43.Google ScholarCross Ref
- CAKAJ Shkelzen. 2009. Rain attenuation impact on performance of satellite ground stations for low earth orbiting (LEO) satellites in Europe. International Journal of Communications, Network and System Sciences 2009 (2009).Google Scholar
- SpaceX. 2016. SPACEX NON-GEOSTATIONARY SATELLITE SYSTEM. https://fcc.report/IBFS/SAT-LOA-20161115-00118/1158350.pdf.Google Scholar
- SpaceX. 2019. SPACEX NON-GEOSTATIONARY SATELLITE SYSTEM. https://fcc.report/IBFS/SAT-MOD-20190830-00087/1877671.Google Scholar
- Milda Tamošiunaite, Stasys Tamošiunas, Mindaugas Žilinskas, and Milda Tamošiuniene. 2011. Atmospheric Attenuation due to Humidity. In Electromagnetic Waves, Vitaliy Zhurbenko (Ed.). IntechOpen, Rijeka, Chapter 8. Google ScholarCross Ref
- Meaghan Tobin. 2022. Just 2% of Starlink users live outside of the West, data suggests. https://restofworld.org/2022/starlink-elon-musk-global-access/.Google Scholar
- Zhipeng Wang and P.T. Mathiopoulos. 2001. Analysis and performance evaluation of dynamic channel reservation techniques for LEO mobile satellite systems. In IEEE VTS 53rd Vehicular Technology Conference, Spring 2001. Proceedings (Cat. No. 01CH37202), Vol. 4. 2985--2989 vol.4. Google ScholarCross Ref
- Shiyi Xia, Quanjiang Jiang, Cheng Zou, and Guotong Li. 2019. Beam coverage comparison of LEO satellite systems based on user diversification. IEEE access 7 (2019), 181656--181667.Google ScholarCross Ref
- Chong-Hung Zee. 2013. Theory of geostationary satellites. Springer Science & Business Media.Google Scholar
- Wendong Zhou, Tao Hong, Xiaojin Ding, and Gengxin Zhang. 2021. LoRa Performance Analysis for LEO Satellite IoT Networks. In 2021 13th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 1--5.Google Scholar
Index Terms
- A browser-side view of starlink connectivity
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