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인라인 커넥터를 고려한 채널 기반의 차량용 SerDes 성능 평가
정우진(Woojin Jeong),송호승(Hoseung Song),최은민(Eunmin Choi),강수원(Suwon Kang),최지웅(Ji-Woong Choi) 한국자동차공학회 2020 한국 자동차공학회논문집 Vol.28 No.11
High-speed in-vehicle networks are required to process vast amounts of data from various sensors, such as cameras, light detection and ranging(LiDAR), and radars to develop autonomous driving technology. Automotive Serializer/ Deserializer(SerDes), such as flat panel display(FPD), gigabit multimedia serial link(GMSL), and Automotive SerDes Alliance (ASA), has been proposed in order to adopt high-speed SerDes technology to vehicles. In this paper, we investigate the optimal receiver environment parameters to provide the highest link performance for the Automotive SerDes channel under the in-line connectors mandatory for car assembly. In addition, we propose a channel estimation method by using auto-correlation in order to set the receiver analog front-end in an optimal way to achieve the highest signal-to-noise power ratio(SNPR) performance in various automotive link conditions.
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.