Analysis of Network Latency in Automotive Central Electronic and Electrical Architecture Based on XGSPON

In response to the bandwidth bottleneck and delay-sensitive challenges posed by high-data-volume transmission in intelligent vehicles, an Electrical/Electronic (E/E) architecture based on 10 Gbit/s Symmetric Passive Optical Network (XGSPON) technology is designed according to the vehicular environment. First, the overall E/E architecture is designed and described. On this basis, a composite network loop delay analysis method is proposed, which enables in-depth analysis of the end-to-end delay characteristics of the network architecture through detailed network topology diagrams and mathematical equations for upper-bound delay. Finally, a performance comparison is conducted between the proposed architecture and traditional Ethernet architectures using simulation software. The results demonstrate that the XGSPON-based architecture outperforms traditional Ethernet architectures in terms of end-to-end delay, effectively supporting the requirements for high-data-volume and low-latency transmission.