High Altitude Platform Station (HAPS)-Aided GNSS for Urban Areas. - Hongzhao Zheng; Mohamed Maher Atia; Halim Yanikomeroglu (WiSEE, 2022)

A Positioning System in an Urban Vertical Heterogeneous Network (VHetNet). - Hongzhao Zheng; Mohamed M. Atia; Halim Yanikomeroglu (CoRR, 2023)

Analysis of a HAPS-Aided GNSS in Urban Areas Using a RAIM Algorithm. - Hongzhao Zheng; Mohamed Maher Atia; Halim Yanikomeroglu (IEEE Open J. Commun. Soc., 2023)

Synthetic Waveform Generation for Satellite, HAPS, and 5G Base Station Positioning Reference Signal Using QuaDRiGa. - Hongzhao Zheng; Mohamed M. Atia; Halim Yanikomeroglu; Paulo S. R. Diniz (ICC, 2024)

Real GPS Data collected in Downtown Ottawa. - Hongzhao Zheng; Mohamed M. Atia; Halim Yanikomeroglu (IEEE DataPort, 2024)