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Evaluation of Latency Time for High-Speed In-Vehicle Lan Protocols
Published May 11, 1994 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
The latency time of high-speed in-vehicle LAN systems was evaluated in order to analyze the difference in latency time between the non-destructive CSMA/CD (CSMA/CD+NDA) and the token passing selected as the high-speed LAN protocols. The evaluating method was constructed by combining simulation and an approximate equation. As a result, the limits of traffic volume available for vehicle application were approximately 80 to 90 % for the CSMA/CD+NDA and 30 to 40 % for the token passing at a transmission rate of 1 Mbps.