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Optimum Distance Between Ground Base Stations For High-Speed Train Communications Using Free-Space Optical Laser Links, Sina Fathi Kazerooni
Optimum Distance Between Ground Base Stations For High-Speed Train Communications Using Free-Space Optical Laser Links, Sina Fathi Kazerooni
Theses
High-Speed trains (HSTs) can travel at speeds up to 430 Km/h. The increasing adoption rate of HSTs, and large number of Internet-connected digital devices, pose a great demand for a fast and reliable Internet connection in high-speed trains. Different radio-frequency (RF) wireless communication systems have been studied for HSTs. However, RF wireless communications in high-speed mobility environments suffer from frequent handovers, penetration loss, and Doppler effect. These problems promote the use of other technologies such as free-space optical (FSO) communications to provide reliable Internet connection for HST’s passengers.
Two different approaches for performing signal handover using FSO technology for ground …