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Compatibility Analysis of the Turbo Controller Area Network (TURBO CAN)
Choi, Eunmin,Han, Sungmin,Lee, Jaeseok,Lee, Seonghun,Kang, Suwon,Choi, Ji-Woong IEEE 2018 IEEE Transactions on Vehicular Technology VT Vol.67 No.6
<P>Given the increased amount of data traffic in in-vehicle networks with more systems now included in vehicles, enormous amounts of research have recently focused on providing reliable and inexpensive quality of service for in-vehicle communication systems. To support high-speed data processing while maintaining backward compatibility with controller area network (CAN) for in-vehicle communication systems, the turbo controller area network (TURBO CAN) was proposed, combining the standard baseband CAN signal with a passband modulated signal. In this paper, we demonstrate both an improvement in the performance and the validity of the backward compatibility of the TURBO CAN system. To be specific, we provide passband channel modeling of the CAN system based on the channel gain and the noise characteristics as measured in an actual vehicle environment. Using these measurements, we also provide proper criteria for determining the power constraint of the passband signal to achieve a highly compatible system by analyzing the channel capacity of TURBO CAN as well as the bit error rate of a standard CAN receiver.</P>
초고속 차량 링크 Automotive SerDes Alliance (ASA) 시스템
최은민(Eunmin Choi),정우진(Woojin Jeong),송호승(Hoseung Song),조민지(Minji Cho),강수원(Suwon Kang),최지웅(Ji-Woong Choi) 한국자동차공학회 2021 한국자동차공학회 부문종합 학술대회 Vol.2021 No.6
According to the development of connected and autonomous vehicles (CAVs) technology, the number of electronic devices embedded in vehicles is increasing and it causes the increment of data traffic of the in-vehicle networks. For highspeed data transmission, especially for the sensor network, the demand of automotive serializer/deserializer (SerDes) has increased. However, conventional automotive SerDes technologies do not provide interoperability because each company independently develops the technology. Automotive SerDes alliance (ASA) provides interoperability and 4~5 times higher data rate than conventional automotive SerDes technologies by standardizing with automotive original equipment manufacturers (OEMs) and vehicle semiconductor companies. In this paper, we introduce the ASA system in terms of frame structure and physical layer that are currently being standardized.
정우진(Woojin Jeong),최은민(Eunmin Choi),최지웅(Ji-Woong Choi) 제어로봇시스템학회 2021 제어·로봇·시스템학회 논문지 Vol.27 No.2
This paper proposes an autocorrelation-based intrusion detection system for a controller area network (CAN). The CAN is a bus topology network used in cyber-physical systems such as vehicles, robots, and trains. As the applications of the CAN are closely related to human life, and any malfunctions may lead to accidents, the system robustness is critical. However, the CAN is vulnerable to attacks because no authentication or encryption exists in the CAN protocol. The proposed system uses the autocorrelation of the CAN signals to identify the source node and detects the attack signals. Moreover, we evaluate the performance of the proposed system through a simulation and in a real-car environment. As the proposed system involves physical layer security, no modification of the CAN protocol is necessary. In addition, redundant security can be implemented when the system is applied with authentication or encryption protocols.
링크 속도에 따른 차량 내부 네트워크에서 Time-Sensitive Network 성능 평가
조민지(Minji Cho),최은민(Eunmin Choi),송호승(Hoseung Song),정우진(Woojin Jeong),최지웅(Ji-Woong Choi) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
본 논문은 다양한 운전자보조시스템(Advanced Driver Assistance Systems, ADAS) 기술 탑재로 카메라 및 센서 데이터가 증가함에 따라 차량 내부 네트워크(In-Vehicle Network, IVN)에서 생기는 트래픽 혼잡을 IEEE 802.1 TSN(Time-Sensitive Networking)을 통해 해결할 수 있어 이에 대한 성능을 분석한다. 또한, 링크 속도에 따라 필요로 하는 TSN 표준이 다르므로 TSN 기술 구현에 대한 복잡성을 고려하여 적절한 TSN 기술을 선택하기 위한 가이드라인을 제안한다.