3 papers
eess.SP2025
RFI Detection and Identification at OVRO Using Pseudonymetry
Meles Weldegebriel, Zihan Li, Greg Hellbourg +2
Protecting passive radio astronomy observatories from unintended radio-frequency interference (RFI) is increasingly challenging as wireless activity expands near protected bands. W…
eess.SP2025
Sensing and Stopping Interfering Secondary Users: Validation of an Efficient Spectrum Sharing System
Meles Weldegebriel, Zihan Li, Dustin Maas +3
We present the design and validation of Stoppable Secondary Use (StopSec), a privacy-preserving protocol with the capability to identify a secondary user (SU) causing interference…
eess.SP2023
Channel Estimation via Loss Field: Accurate Site-Trained Modeling for Shadowing Prediction
Jie Wang, Meles G. Weldegebriel, Neal Patwari
Future mobile ad hoc networks will share spectrum between many users. Channels will be assigned on the fly to guarantee signal and interference power requirements for requested lin…