Joint Power control and Resource sharing for 5G-V2X communication in Cellular Networks

Vehicle to Everything (V2X) communication in 5G cellular networks plays a pivotal role in enhancing road safety, traffic efficiency and cooperative driving. A novel joint spectrum and power allocation scheme is implemented based on large-scale fading channel information in order to maximise the throughput of V2V users while maintaining the quality of service (QoS) of V2I users. In our system model, V2V users reuse the spectrum of V2I users in order to enhance the spectrum efficiency. An optimization technique namely weighted bipartite matching is used for spectrum reuse pair selection which is solved by using the Hungarian method. The throughput of V2V and V2I users is measured by varying the number of vehicles for a fixed number of V2I and V2V users respectively. The relationship between the throughput of V2V and V2I with SINR for different values of pathloss exponent is also discussed. The CDF of the proposed method is also compared with the existing scheme in terms of outage probability which proves the superiority of our work. Additionally, the computer simulations confirm the effectiveness of our work.