Quantitative Evaluation of Effect of FP on QoS Controls in IEEE 802.1TSN over In-Vehicle Networks by Multiple Regression Analysis

This paper studies the quantitative effect of Frame Preemption (FP) defined in IEEE 802.1 TSN, a standard for transmitting time-sensitive data on Ethernet when used with CBS and TAS, which are QoS controls in IEEE 802.1 TSN. Since FP is a method of preferentially transmitting highly urgent intermittent traffic, it is necessary for in-vehicle networks. When designing an in-vehicle network, it is essential to evaluate the effect of FP on other priority control methods. However, since it operates independently of other QoS controls, it isn't easy to estimate the effect of FP when combining it with other QoS controls. This paper uses an in-vehicle network QoS estimation based on multiple regression analysis to quantitatively evaluate the effectiveness of FP in an Ethernet-based in-vehicle network that combines CBS, TAS, and FP.