Author

Khadijeh Ali Mahmoodi

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Open access Aug 2026

Pointing error evaluation in IRS-assisted VLC systems for indoor hospital environments: a comparative analytical study

Visible light communication (VLC) has emerged as a promising technology for indoor wireless networks that offers immunity to electromagnetic interference and enhanced physical-layer security, properties that are particularly valuable in hospital and clinical environments. Intelligent reflecting surfaces (IRSs) have rec...

Babak Sadeghi, S. M. Sadough, Khadijeh Ali Mahmoodi · Frontiers in Communications... · 0 citations

Open access Aug 2026

Comprehensive Channel Modeling of UAV-Assisted FSO Systems under Fog, AoA Fluctuations, and Pointing Errors

This paper investigates the outage performance of unmanned aerial vehicle (UAV)-assisted free-space optical (FSO) communication systems operating in foggy channels. The analysis jointly accounts for atmospheric turbulence, fog-induced attenuation, generalized Beckmann-distributed pointing errors (PE), and angle-of-arri...

Mahdi Ataee, S. M. Sadough, Khadijeh Ali Mahmoodi · EAI Endorsed Transactions on... · 0 citations

Jul 2026

Passive Retroreflector-Based Optical Multilateration for Three-Dimensional UAV Localization

This paper presents a three-dimensional (3D) unmanned aerial vehicle (UAV) localization framework based on optical round-trip time (RTT) ranging and multilateration. Multiple fixed optical transmitters estimate distances via laser reflections from a UAV equipped with passive retroreflectors, enabling infrastructure-ass...

Khadijeh Ali Mahmoodi, Bastien Béchadergue, Luc Chassagne et al. · International Symposium on C... · 0 citations