Research of Wireless Transmission Strategy for High-Speed Railway

Due to the wireless base station coverage is not high along the highspeed railway lines, the wireless signal around is not stable. It is difficult to guarantee reliable wireless data transmission in high-speed train just depending on the hardware environment. For common solutions, there is no control over data transmission on application layer, and data transmission depends on hardware completely. So, the reliability of data transmission is poor, and efficiency is low in common solutions. To solve these problems, we propose a novel wireless data transmission method, predicting the next state of signal in software layer. The new transmission strategy in this paper adopts the control strategy of wireless data communication based on prediction. With predicting wireless signal strength along the railway reasonably and adopting data transmission control accordingly, it makes data transmission more secure. This is significant to wireless data transmission of high-speed railway.