LeoCC: Making Internet Congestion Control Robust to LEO Satellite Dynamics
Zeqi Lai, Zonglun Li, Qian Wu, Hewu Li, Jihao Li, Xin Xie, Yuanjie Li, Jun Liu, Jianping Wu · 2025
The recent renaissance of low Earth orbit (LEO) satellite networks expands the boundaries of global Internet access, but also introduces substantial new challenges for existing end-to-end congestion control algorithms (CCAs). The rapid and continuous movement of LEO satellites leads to infrastructure-level dynamics, resulting in frequent, LEO-dynamics-induced changes in link capacity, delay, and packet loss rate, which can further mislead the rate control in existing CCAs and cause self-limited performance.