Design of An Improved Ethernet AVB Model for Real-time Communication in In-Vehicle Network

Abstract

The amount of traffics is increasing rapidly due to the increase of the number of electronic components and vehicle applications in vehicles. They require more network bandwidth and more stringent end-to-end latency and jitter constraints. In this situation, IEEE Audio/Video Bridging (AVB) is expected to be a promising technology in In-Vehicle Network since it guarantees high level of Quality of Service (QoS) for real-time communication. AVB defined tow SR-Classes for time sensitive traffics. However, as a result of the complexity of stream reservation domain construction, in-vehicle networks tend to use single traffic classes. In addition, the AVB jitter constraint is too weak. In this paper, an improved Ethernet AVB model with single SR-Class and time-triggered scheduling is proposed. In this model, time-sensitive traffics with high jitter requirements are forwarded through time-triggered scheduling, and ordinary time-sensitive flows are forwarded using SR-Class. Through simulations we confirm that proposed model not only satisfies the Qos requirements, but also has some extra advantages.

Image Link Through Adaptive Encoding Data Base and Optimized GPU Algorithm for Real-time Image Processing of Artificial Intelligence

“…Moreover, the AVB jitter limitation is too fragile. To solve this problem, an improved Ethernet AVB model with single SR-Class and time triggered scheduling is proposed that satisfies the QoS requirements with some extra advantages [8]. In addition, evaluating the availability of the eAVB is considered a next-generation vehicle communication [9].…”

“…The present paper is focusing on investigations about the latency of eAVB networking, since it exerts a significant influence of communicating different automotive signals on time. Communication signals without timing boundaries can disable functions that cause serious situations for the driver and the car environment [6][7][8].…”

Study of Fixed Point Message Scheduling Algorithm for In-Vehicle Ethernet

“…In-vehicle Ethernet achieves efficient real-time communication by using audio video bridging/time-sensitive network (AVB/TSN) technology and is suitable for application scenarios with high realtime requirements. As an open standard technology, in-vehicle Ethernet is highly flexible and scalable and can be integrated into various vehicle systems through standardized interfaces, and protocol stack design methods, thereby improving system development efficiency and maintainability [4]. In-vehicle Ethernet can not only realize high-speed data exchange between ECUs inside the vehicle, but also supports seamless communication between the vehicle and the external environment, other vehicles, and even cloud servers, opening up a new path for the development of intelligent connected vehicles [5].…”

Development of an Ethernet-Based Heuristic Time-Sensitive Networking Scheduling Algorithm for Real-Time In-Vehicle Data Transmission

“…However, existing IVN protocols are showing their technical limitations as vehicles tend to be smarter by employing advanced driver assistance systems (ADAS), vehicle-to-everything (V2X), and autonomous driving. In particular, sensors used for autonomous driving such as light detection and ranging (LiDAR), radar, and cameras require a large amount of data exchange for sensor fusion and artificial intelligence processing [4][5][6][7][8][9][10].…”