10BASE-T1S has emerged as the dominant technology to replace traditional multidrop networks paving the way towards IP-based converged in-vehicle communication. In a 10BASE-T1S system, nodes transmit in a cyclic pattern where each node transmits once per cycle and must wait for its opportunity to come in the next cycle resulting in higher latency. With increasing centralization in software defined vehicle (SDV) architectures, end to end latency becomes even more pronounced, making 10BASE-T1S performance a concern for low latency control applications. A common mitigation strategy is to limit the number of nodes on each segment, but this increases the number of 10BASE-T1S links, wiring cost and complexity. To address this challenge, we applied a set of latency optimization methods and demonstrated improvements in latency using a simulator.
