Analysis of Hybrid Radio Resource Allocation Scheme for Video Traffic in 5G V2X Systems

The paper is devoted to the task of ensuring strict requirements for latency and reliability of data delivery for uplink video traffic generated by a remote vehicle control application in 5G Vehicle-to-Everything (V2X) networks. A distinctive feature of this type of traffic is that the size of video frames is variable, so we propose using a hybrid radio resource allocation scheme. According to this scheme, each user is assigned a dedicated subchannel, as well as a subchannel common to all users, which is used when the resources of the dedicated subchannel are insufficient to transmit a packet. We develop an analytical model that allows us to estimate the probability of packet loss for each user when using a hybrid resource allocation scheme. We show how to select optimal parameters for the hybrid scheme by using the developed analytical model.