Projects
Selected projects
Hardware-validated systems and open research code.
Centralized PPO-Based DRL for Multi-UAV-BS Positioning and Trajectory Optimization
PPO
TD3
Multi-UAV-BS positioning
Disaster response
A centralized PPO agent learns to position multiple UAV base stations in real time, using only radio-sensing measurements (no GPS), to keep ground users connected as they move — trained and evaluated across four user-mobility patterns.
SDR-Based Wireless Testbeds & 5G NR AoA Estimation
USRP B210
GNU Radio
OpenAirInterface
5G NR
AoA estimation
Indoor/Outdoor
Reproducible software-defined radio testbeds built on USRP hardware, GNU Radio, and OpenAirInterface, used across the group's over-the-air experiments — including angle-of-arrival estimation from 5G NR Sounding Reference Signals, validated with commercial smartphones against a two-node USRP B210 receiver in both indoor and outdoor settings.