Abstract
Increasing bandwidth requirements in vehicles are pushing the backbone architectures to use faster switching technologies like Ethernet. However, the traditional Ethernet cannot satisfy the strict latency requirements in a vehicle. As a solution, switched Ethernet variants like Time-Sensitive Networking (TSN) and Audio Video Bridging (AVB) are being standardized for automotive Ethernet. Moreover, it is expected that the intravehicle backbone architectures will shift to a zonal architecture for more centralizing the processing and decreasing the costs. In this paper, we present the recent trends, advances and challenges in intra-vehicle backbone networks. Moreover, we compare a TSN+AVB Ethernet backbone architecture with an alternative cut-through switching optical backbone network architecture by simulation and show that the cut-through switching optical architecture may achieve lower latency.
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