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自動駕駛車聯網中通感算融合研究綜述與展望

Overview and prospect of communication-sensing-computing integration for autonomous driving in the internet of vehicles

  • 摘要: 為了應對自動駕駛車聯網極低的通信時延、極高的可靠性、更高的傳輸速率等極致性能需求,亟需破解現有車聯網中通信、感知、計算相互割裂與獨立分治的問題,實現“云?邊?端”一體化協同感知、協同傳輸和協同決策。為此,急需對自動駕駛車聯網的通感算融合開展研究,實現三者的高效融合。首先論述了目前在通信、感知、計算融合領域的研究進展,然后給出了通感算融合網絡的定義,論述了通感助算、通算助感以及感算助通的研究進展。針對自動駕駛車聯網的應用場景,創造性地提出了“五層四面”通感算融合的網絡架構,橫向五層自下而上分別是:多元接入層、統一網絡層、多域資源層、協同服務層、管理與應用層;縱向四面分別是:通信面、感知面、算力面、智能融合面,通過五層四面的深度融合,進一步提升了自動駕駛車聯網中通感算融合網絡的性能。其次,提出了評價通感算融合網絡的性能指標體系,最后針對目前研究存在的問題以及未來發展方向給出了四點可行性建議。

     

    Abstract: To meet extreme performance requirements, such as extremely low communication delay, extremely high reliability, and a higher transmission rate, for autonomous driving in the Internet of vehicles (IoV), the future IoV should be merged into a united framework that integrates communication, sensing, and computing. At the same time, as the 5G-Advanced system moves toward supporting a broader toB vertical industry, it will face a more complex and heterogeneous user environment and multidimensional digital space, which requires 5G-Advanced terminals and 5G-Advanced networks to have stronger environmental sensing, computing, and intelligence capabilities. To realize deep integration for autonomous driving in the IoV, the sensing of IoV depends on not only radar positioning, camera imaging, and various sensor detections but also communication, which can collect a variety of data to the edge node for calculation. At the same time, with the support of cloud edge and end integration efficient computing power to achieve high-precision sensing and efficient communication, the integration network further improves collaborative mobile computing robustness. Therefore, the three functions of communication, sensing, and computing for autonomous driving in the IoV are interrelated and promote each other. To break through the architectural barrier of universal sensing integration in the Internet of autonomous vehicles, it is necessary to explore how to build a universal sensing integration network architecture with decoupled resources, scalable capabilities, and reconfigurable architecture, as well as universal sensing integration resource management technology. However, communication, sensing, and computing are separated from each other in the existing IoV. Thus, we scrutinize the scientific problem of the endogenous integration of communication, sensing, and computing for autonomous driving in the IoV. First, the current research progress in integrating communication, sensing, and computing is discussed. Second, communication-sensing-computing-integrated IoV is defined, and the research progress on communication-sensing-assisted computing, communication-computing-assisted sensing, and sensing-computing-assisted communication is discussed. Aiming at the scenario of an IoV for autonomous driving, the architecture of communication-sensing-computing-integrated IoV with five layers and four planes is proposed. The horizontal five layers from bottom to top are a multiple access layer, unified network layer, multi-domain resource layer, collaborative service layer, and management and application layer. The four vertical planes are communication, sensing, computing power, and intelligent integration planes, respectively. Deeply integrating the five layers and four planes further improves the performance of the integrated IoV. Third, key performance indexes for evaluating the integrated IoV are proposed. Finally, four feasible suggestions are given for the current research problems and the future development direction.

     

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