The study of C-RAN application on broadband wireless access for high-speed railway

Centralized, cooperative, cloud radio access network (CRAN) is a novel wireless access network architecture which can provide low cost and high performance. Applying C-RAN on broadband wireless access system for highspeed railway (HSR) may improve the quality of existing network architecture. In this paper, we describe the current research status and some difficulties of broadband wireless access system for HSR. We then mainly focus on the architecture and advantages of C-RAN for HSR. Major technical issues of C-RAN application are also discussed. Finally, based on the analysis above, we believe that C-RAN can serve as a feasible candidate for the future wireless access for HSR.