Nikhil K. Nataraja;Sudhanshu Sharma;Kamran Ali;Fan Bai;Rui Wang;Andreas F. Molisch
{"title":"车辆集成传感和通信(ISAC):具有5G-NR信号的双基地雷达","authors":"Nikhil K. Nataraja;Sudhanshu Sharma;Kamran Ali;Fan Bai;Rui Wang;Andreas F. Molisch","doi":"10.1109/TVT.2024.3514573","DOIUrl":null,"url":null,"abstract":"As 5G [3 GPP <italic>New Radio</i> (NR)] deployments continue to expand, their use as an “opportunistic” bistatic radar sensing system that uses the <italic>base station</i> (BS) as the <italic>transmitter</i> (TX) and the <italic>user equipment</i> (UE) as the <italic>receiver</i> (RX) opens the possibility of a new sensing modality that does not need extra hardware, and thus efficiently realize <italic>integrated sensing and communication for vehicles</i> (ISAC). In particular, such 5G-based radar sensing can complement and enhance the existing monostatic radar in <italic>advanced driver assistance systems</i> (ADAS) and future self-driving cars, e.g., for detecting <italic>non-line-of-sight</i> (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 <italic>reference signal</i>s (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 <italic>serial interference cancellation</i> (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.","PeriodicalId":13421,"journal":{"name":"IEEE Transactions on Vehicular Technology","volume":"74 4","pages":"6121-6137"},"PeriodicalIF":7.1000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Integrated Sensing and Communication (ISAC) for Vehicles: Bistatic Radar With 5G-NR Signals\",\"authors\":\"Nikhil K. Nataraja;Sudhanshu Sharma;Kamran Ali;Fan Bai;Rui Wang;Andreas F. Molisch\",\"doi\":\"10.1109/TVT.2024.3514573\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As 5G [3 GPP <italic>New Radio</i> (NR)] deployments continue to expand, their use as an “opportunistic” bistatic radar sensing system that uses the <italic>base station</i> (BS) as the <italic>transmitter</i> (TX) and the <italic>user equipment</i> (UE) as the <italic>receiver</i> (RX) opens the possibility of a new sensing modality that does not need extra hardware, and thus efficiently realize <italic>integrated sensing and communication for vehicles</i> (ISAC). In particular, such 5G-based radar sensing can complement and enhance the existing monostatic radar in <italic>advanced driver assistance systems</i> (ADAS) and future self-driving cars, e.g., for detecting <italic>non-line-of-sight</i> (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 <italic>reference signal</i>s (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 <italic>serial interference cancellation</i> (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.\",\"PeriodicalId\":13421,\"journal\":{\"name\":\"IEEE Transactions on Vehicular Technology\",\"volume\":\"74 4\",\"pages\":\"6121-6137\"},\"PeriodicalIF\":7.1000,\"publicationDate\":\"2024-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Vehicular Technology\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10788035/\",\"RegionNum\":2,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Vehicular Technology","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10788035/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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.
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.