Simulating TSN traffic scheduling and shaping for future automotive Ethernet

• Published in: Journal of communications and networks Vol. 23; no. 1; pp. 53 - 62
• Main Authors: Zhou, Zifan, Lee, Juho, Berger, Michael Stubert, Park, Sungkwon, Yan, Ying
• Format: Journal Article
• Language: English
• Published: 한국통신학회 01.02.2021
• Subjects: 전자/정보통신공학
• ISSN: 1229-2370; 1976-5541
• DOI: 10.23919/JCN.2021.000001

The broadening range of applications for vehicles hasmotivated the evolution of the automotive communication network. Ethernet has been deployed in production vehicles to build invehiclenetworks (IVN) by main manufacturers. To extent Ethernetwith real-time service for future E/E architecture, a time-sensitivenetworking (TSN) profile for automotive Ethernet has been created. This paper evaluates the implementation of multiple trafficscheduling and shaping mechanisms in the automotive Ethernet,respectively. And we especially focus on two solutions, namely thetime-aware shaping (TAS) and asynchronous traffic shaping (ATS). To investigate the performance, we introduce a TSN-based automotivegateway testing model in a simulation environment. Furthermore,another two methods, i.e., strict-priority and credit-basedshaper (CBS), as well as TAS and ATS are implemented in themodel and tested within a domain-based IVN scenario. The resultsshow that TAS guarantees the shortest worst-case latency ofhigh-priority streams, whereas it has a longer transmission latencyfor low-priority streams. ATS provides less determinism for highprioritystreams than TAS, but ensures a better average latency ofall streams. KCI Citation Count: 2