Performance Analysis of Curved Track G2T-FSO(Ground-to-Train Free Space Optical)Model under Various Weather Conditions  

作　　者：Mohammed A.Alhartomi Mohammad F.L.Abdullah Wafi A.B.Mabrouk Mohammed S.M.Gismalla Ahmed Alzahmi Saeed Alzahrani Mohammad R.Altimania Mohammed S.Alsawat 

机构地区：[1]Department of Electrical Engineering,University of Tabuk,Tabuk,71491,Saudi Arabia [2]Faculty of Electrical and Electronic Engineering,Universiti Tun Hussein Onn Malaysia(UTHM),Johor,86400,Malaysia [3]Center for Communication Systems and Sensing,King Fahd University of Petroleum and Minerals(KFUPM),Dhahran,31261,Saudi Arabia [4]Department of Mechanical Engineering,University of Tabuk,Tabuk,71491,Saudi Arabia

出　　处：《Computer Modeling in Engineering & Sciences》2024年第12期2087-2105,共19页工程与科学中的计算机建模（英文）

基　　金：funded by the Deputyship for Research&Innovation,Ministry of Education in Saudi Arabia,grant number S-1443-0223.

摘　　要：The demand for broadband data services on high-speed trains is rapidly growing as more people commute between their homes and workplaces.However,current radio frequency(RF)technology cannot adequately meet this demand.In order to address the bandwidth constraint,a technique known as free space optics(FSO)has been proposed.This paper presents a mathematical derivation and formulation of curve track G2T-FSO(Ground-to-train Free Space Optical)model,where the track radius characteristics is 2667 m,divergence angle track is 1.5°for train velocity at V=250 km/h.Multiple transmitter configurations are proposed to maximize coverage range and enhance curve track G2T-FSO link performance under varying weather conditions.The curved track G2T-FSO model was evaluated in terms of received power,signal-to-noise ratio(SNR),bit error rate(BER),and eye diagrams.The results showed maximum coverage lengths of 618,505,365,and 240 m for 4Tx/1Rx,3Tx/1Rx,2Tx/1Rx,and 1Tx/1Rx configurations,respectively.The analyzed results demonstrate that the G2T-FSO link can be effectively implemented under various weather conditions.

关 键 词：Free space optics curve track ground-to-train communications geometrical loss weather conditions 

分 类 号：U213.1[交通运输工程—道路与铁道工程]