NOMA-Based Radio Resource Allocation in Vehicular Networks

Abstract The increasing prevalence of intelligent transportation systems necessitates more frequent communication between vehicles and the external environment. Due to large number user connections information exchange in this scenario, higher requirements for both delay reliability are also imposed they crucial improving spectrum efficiency. In an effort find a solution problem, we advocate proposal where multiple V2V share with each V2I, introduce NOMA enhance efficiency, mitigate resource collision issues among users, eliminate overhead resulting from retransmission. paper, propose three-stage scheme. addition, compare effectiveness two different OFDM strategies V2X systems. Simulation results demonstrate that using can effectively improve system capacity.