Performance analysis of massive multiple input multiple output for high speed railway

This paper analytically reviews the performance of massive multiple input output (MIMO) system for communication in highly mobility scenarios like high speed Railways. As popularity train increasing day by day, data rate wireless is extremely required. 5G systems must be designed to meet requirement broadband services at around 500 km/h, which expected achievable HSR systems, a 180 Mbps or higher. Significant challenges communications are fast time-varying fading, channel estimation errors, doppler diversity, carrier frequency offset, inter interference, penetration loss and frequent handovers. Therefore, crucial design models prevails. Recently, MIMO techniques have been proposed significantly improve networks upcoming technology. Massive provide throughput energy efficiency channel. In this paper, key findings, requirements onboard pointed out after thorough literature review. last, future research scope bridge gap designing efficient model using other optimization method mentioned.