HyunSeok Daniel Jang

Hi! I'm a first-year PhD Student at Northwestern University, advised by Fabian Bustamante.

HyunSeok Daniel Jang

Hi! I'm a first-year PhD Student at Northwestern University, advised by Fabian Bustamante.

My research interests are broadly in network measurement, analysis, and engineering.
I enjoy studying how infrastructural and geolocational characteristics of network systems impact measurements, with the goal of leveraging these insights to develop performance enhancing solutions.
My recent research topics include cellular roaming and global connectivity, Bluetooth Low Energy (BLE) tracking, and satellite networks.

Previously, I was a research assistant at Communication Networks Lab in New York University Abu Dhabi, where I was advised by Yasir Zaki. I am also a recipient of the Tamayyuz (Excellence) Research Fellowship.
I watch professional baseball in my free time, although the lifelong experience of being a Hanwha Eagles fan has rarely proven stress-relieving.


Publications

  • Roam Without a Home: Unraveling the Airalo Ecosystem [Link]
    HyunSeok Daniel Jang, Matteo Varvello, Andra Lutu, and Yasir Zaki
    ACM IMC, 2025
  • From GEO to LEO: First Look Into Starlink In-Flight Connectivity [Link]
    HyunSeok Daniel Jang, Matteo Varvello, Aravindh Raman, Yasir Zaki
    ACM IMC, 2025
  • PixLift: Accelerating Web Browsing via AI Upscaling [Link]
    Yonas Atinafu, Sarthak Malla, HyunSeok Daniel Jang, Nouar Aldahoul, Matteo Varvello, Yasir Zaki
    ACM Compass, 2025

Preprints

  • Challenges and Oppurtunities for Global Cellular Connectivity [Link]
    Viktoria Vomhof, HyunSeok Daniel Jang, Matteo Varvello, Stefan Geißler, Yasir Zaki, Tobias Hoßfeld, and Andra Lutu
    Submission Under Review, 2025
  • A Tale of Three Location Trackers: AirTag, SmartTag, and Tile [Link]
    HyunSeok Daniel Jang, Hazem Ibrahim, Rohail Asim, Matteo Varvello, Yasir Zaki
    Submission Under Review, 2025
  • TikTok's recommendations skewed towards Republican content during the 2024 U.S. presidential race [Link]
    HyunSeok Daniel Jang, Hazem Ibrahim, Nouar Aldahoul, Aaron R. Kaufman, Talal Rahwan, Yasir Zaki
    Submission Under Review, 2025