协同感知与5G NR-V2X侧链路在道路安全中的作用
The Role of Collective Perception and 5G NR-V2X Sidelink in Road Safety
浏览论文内容
中文总结 AI 辅助
本文综述ETSI协同感知服务（CPS）的标准化现状，通过网络级仿真结合真实世界数据集，评估5G NR-V2X侧链路下不同目标选择策略的CPS性能，指出需联合设计感知消息生成与无线接入机制以最大化效益。
中文摘要 AI 辅助
车辆和路边基础设施日益配备能够感知周围环境的传感器，通过车万物联网（V2X）通信共享该信息是Day-2应用的关键支撑，且得到欧洲电信标准协会（ETSI）协同感知服务（CPS）的支持。尽管CPS有望在未来智能交通系统中发挥基础性作用，但其运行可能大幅增加信道负载，对无线资源利用率、通信可靠性和信息管理构成挑战。本文综述了CPS标准化的当前状态，并在密集部署场景下研究其影响，该场景中联网车辆通过第五代（5G）新无线电-V2X（NR-V2X）侧链路（SL）通信进行交互。主要贡献是对协同感知消息的不同目标选择策略下的通信可靠性、延迟、信道占用率和信息有用性进行了现实评估。分析通过网络级仿真框架开展，该框架整合了来自真实世界数据集的经验目标轨迹，从而避免了合成交通模型的局限性。结果表明，感知消息生成与无线接入机制紧密耦合，应联合设计以最大化协同感知服务的效益。
英文摘要
Vehicles and roadside infrastructure are increasingly equipped with sensors capable of perceiving their surroundings. Sharing this information through vehicle-to-everything (V2X) communications is a key enabler of Day-2 applications and is supported by the ETSI collective perception service (CPS). While CPS is expected to play a fundamental role in future intelligent transportation systems, its operation may significantly increase channel load, posing challenges in terms of radio resource utilization, communication reliability, and information management. This paper reviews the current status of CPS standardization and investigates its impact in dense deployment scenarios where connected vehicles communicate through fifth-generation (5G) New Radio-V2X (NR-V2X) sidelink (SL) communications. The main contribution is a realistic evaluation of communication reliability, latency, channel occupancy, and information usefulness under different object-selection strategies for collective perception messages. The analysis is conducted through a network-level simulation framework integrating empirical object traces derived from real-world datasets, thereby avoiding the limitations of synthetic traffic models. Results show that perception message generation and radio access mechanisms are tightly coupled and should be jointly designed to maximize the benefits of collective perception services.
