Method for Overcoming Doppler Effect in High-speed Rail
Huiming Li · Communications technology · 2012
In the mobile communication network,it's a hard to solve high-speed mobiling of the network,and thus problem always attracts much attention.High-speed mobiling would bring strong Doppler effect,and thus result in fast fading characteristics and serious impact on KPI,or even on network operation.High-speed rail is known for its high speed,and Doppler frequency shift brings much trouble to the high-speed rail network.This paper first analyzes the basic concept of the Doppler effect,then discusses its impact on mobile network and the method and algorithm for overcoming this effect,and finally gives suggestions in site selection for reducing the Doppler effect.