车辆集成传感和通信(ISAC):具有5G-NR信号的双基地雷达

IF 7.1 2区 计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Nikhil K. Nataraja;Sudhanshu Sharma;Kamran Ali;Fan Bai;Rui Wang;Andreas F. Molisch
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引用次数: 0

摘要

随着5G [3gpp新无线电(NR)]部署的不断扩大,它们作为“机会主义”双基地雷达感测系统的使用,使用基站(BS)作为发射器(TX),用户设备(UE)作为接收器(RX),开启了一种不需要额外硬件的新感测方式的可能性,从而有效地实现了车辆的集成感测和通信(ISAC)。特别是,这种基于5g的雷达传感可以补充和增强先进驾驶辅助系统(ADAS)和未来自动驾驶汽车中的现有单站雷达,例如用于检测非视距(NLoS)物体。然而,5G-NR信号是为通信目的而设计的,根据3gpp标准定义,它们在时间和频率上既不是连续的,也不是周期性的。这使得创建一个高效的符合标准的双基地雷达系统变得具有挑战性。本文介绍了一套克服这些障碍的方法。我们首先探讨了NR标准中定义的不同参考信号(RSs),然后分析了如何将它们最好地组合在一起用于雷达目的。我们还提出了高分辨率的基于参数的串行干扰抵消(SIC),以比傅里叶分辨率更好的方式提取延迟多普勒域中的散射体。文中还讨论了标准中规定的联合预编码和波束形成的影响。为了证明我们方法的有效性,我们使用合成通道模拟我们的结果,并通过通道测量验证它们。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrated Sensing and Communication (ISAC) for Vehicles: Bistatic Radar With 5G-NR Signals
As 5G [3 GPP New Radio (NR)] deployments continue to expand, their use as an “opportunistic” bistatic radar sensing system that uses the base station (BS) as the transmitter (TX) and the user equipment (UE) as the receiver (RX) opens the possibility of a new sensing modality that does not need extra hardware, and thus efficiently realize integrated sensing and communication for vehicles (ISAC). In particular, such 5G-based radar sensing can complement and enhance the existing monostatic radar in advanced driver assistance systems (ADAS) and future self-driving cars, e.g., for detecting non-line-of-sight (NLoS) objects. However, 5G-NR signals have been designed for communication purposes and, as per the 3 GPP standard definition, they are neither continuous nor periodic in time and frequency. This then makes it challenging to create an efficient standards-compliant bistatic radar system. This paper describes a suite of methods for overcoming these obstacles. We first explore the different reference signals (RSs) defined in the NR standard, and then analyze how they can be best combined for radar purposes. We also present high-resolution parameter-based serial interference cancellation (SIC) to extract the scatterers in the delay-Doppler domain with better-than-Fourier resolution. The impacts of combined precoding and beamforming stipulated in the standard are also discussed in this paper. To demonstrate the validity of our approach, we simulate our results using synthetic channels and validate them with channel measurements.
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来源期刊
CiteScore
6.00
自引率
8.80%
发文量
1245
审稿时长
6.3 months
期刊介绍: The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.
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