@ARTICLE{fathi2018optimal, author={S. {Fathi-Kazerooni} and Y. {Kaymak} and R. {Rojas-Cessa} and J. {Feng} and N. {Ansari} and M. {Zhou} and T. {Zhang}}, journal={IEEE Transactions on Intelligent Transportation Systems}, title={Optimal Positioning of Ground Base Stations in Free-Space Optical Communications for High-Speed Trains}, year={2018}, volume={19}, number={6}, pages={1940-1949}, keywords={free-space optical communication;mobility management (mobile radio);next generation networks;optical links;railway communication;adjacent covered areas;optimal distance;train track;realistic model;FSO system;ground-to-train communication;FSO communications;communication rates;station positioning;optimal positioning;free-space optical communications;high-speed-train communications;FSO seamless handover;seamless signal handover;coverage areas;ground base station optimal positioning;free-space-optics coverage models;Base stations;Handover;Transceivers;Laser beams;Laser modes;Long Term Evolution;Free-space optical communications;high-speed trains;laser-based optical links;optimal base station location;beam coverage;FSO}, doi={10.1109/TITS.2017.2741999}, ISSN={}, month={June},}