Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hossein Safi and Akbar Dargahi and Julian Cheng and Majid Safari,Analytical Channel Model and Link Design Optimization for Ground-to-HAP Free-Space Optical Communications,Journal of Lightwave Technology,0733-8724,Institute of Electrical and Electronics Engineers (IEEE),2020-09-15,38,18,5036-5047,https://cir.nii.ac.jp/crid/1360016870131401856,https://doi.org/10.1109/jlt.2020.2997806