V2X has extremely high requirements for real-time information transmission, demanding as low a latency as possible to obtain timely information and maintaining a sufficiently high reliability to ensure complete and secure information. RSMA avoids complex successive interference cancellation (SIC) operations, such as those performed in NOMA, through a layered signal processing method. Although RSMA can enhance robustness, it has a high dependence on instantaneous channel knowledge. The segmentation, coding, and resource allocation for different parts of the signal all require more complex algorithm support, gradually increasing the complexity of RSMA and making it unable to meet the information transmission requirements in the V2X environment. This paper introduces a reconfigurable intelligent surface (RIS) into RSMA, using only second-order channel statistics to construct an algorithm with a quasi-closed-form solution, eliminating the dependence on instantaneous channel knowledge. Simulation results show that this method can effectively reduce computational overhead and is expected to become a solution for the development of next-generation 6G vehicle communication systems.
Li et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: