Wireless resource multiplexing allocation algorithm for vehicle-vehicle communication in 5G network

Compared with 4G, 5G has greatly improved spectral efficiency, speed, security, etc., and 5G network is suitable for large-scale and ultra-high-speed application scenarios that are highly consistent with rail transit communication modes, and can meet the communication needs of vehicle-vehicle communication. Introducing vehicle-vehicle communication into the traditional train control system, vehicle-vehicle communication will occupy the physical resource block of vehicle-ground communication, resulting in serious interference phenomenon. Aiming at the interference problem caused by the reuse of vehicle-to-vehicle communication resources, a wireless resource allocation algorithm is proposed under the premise of ensuring its reliability. The improved HM algorithm is used to allocate the channel, and finally the spectrum utilization is improved through power optimization.