This paper introduces a novel cooperative vehicular communication algorithm tailored for future 6G ultra-massive vehicle-to-everything (V2X) networks leveraging integrated space-air-ground communication systems. Specifically, we address the challenge of real-time information exchange among rapidly moving vehicles. We demonstrate the existence of an upper bound on channel capacity given a fixed number of relays, and propose a low-complexity relay selection heuristic algorithm. Simulation results verify that our proposed algorithm achieves superior channel capacities compared to existing cooperative vehicular communication approaches.

翻译：本文针对未来6G超大规模车联网，提出一种基于空天地一体化通信系统的协同车辆通信算法。该研究重点解决了高速移动车辆间实时信息交换的挑战。我们证明了在固定中继节点数量的条件下信道容量存在理论上限，并提出一种低复杂度的中继选择启发式算法。仿真结果表明，与现有协同车辆通信方法相比，所提算法能够实现更优的信道容量。