基于通感一体化的车联网信号波形设计研究

Discussion of Vehicular Networking Signal Waveform Design Based on Integrated Sensing and Communication

6G网络以其对空天地海实现的全覆盖和通感算智技术的融合应用,可支持“万物智联”下的各种应用。在基于通信感知一体化的车联网应用中,为了满足目标对象的通信和定位、测距、测速等感知需求,在无线接口则需要波形设计、波束赋形等空口关键技术的支持。通过通信感知一体化网络系统中无线空口的信号波形设计方案进行研究,对比分析多种方案的特点及其对车联网应用的适应性。特别对可解决感知信号多普特频移的正交时频空调制方案的实现方式和调制过程进行具体探究,分析了其峰值平均功率比,并对其应用于车联网可能面临的挑战进行了探讨。

The 6G network can support various applications under the"intelligent connection of cverything"with its full covcrage of air,space,ground and sea and the integrated application of synaesthesia computing technology.In the application of Internet of Vehicles based on the inte-gration of communication and perception,in order to meet the perception requirements of the target object such as communication and positioning,ranging,and specd measurement,the wireless interface nceds to be supported by key air interface technologies such as waveform de-sign and beamforming.Through the study of the signal waveform design scheme of the wire-less air interface in the integrated network system of communication and perception,the charac-teristics of various schemes and their adaptability to the application of Internet of Vehicles are compared and analyzed.In particular,the implementation mode and modulation process of the orthogonal time-frequency air-conditioning scheme that can solve the Doput frequency shift of the perception signal are specifically explored,the peak-average power ratio is analyzed,and the challenges that it may face when applied to the Internet of Vehicles are discussed.