AUTHOR=Chaudhary Sushank , Khichar Sunita , Saadi Muhammad , Parniarifard Amir , Sharma Abhishek TITLE=Hybrid MDM-MIMO radio-over-free space optical system for high-capacity 5G and beyond networks under strong and weak scintillation JOURNAL=Frontiers in Physics VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1556402 DOI=10.3389/fphy.2025.1556402 ISSN=2296-424X