| Presentation | 2017-07-28 Reliability Analysis for CANs based-on Discrete Time Markov Chain Ryohei Satoh, Satoshi Fukumoto, Mamoru Ohara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, the controller area networks (CANs), the industry standard of in-vehicle network protocol, have continued to lose its reliability due to high electromagnetic noise caused by miniaturized inverter circuits. Nakamura et al. proposed the hybrid communication protocol, consisting of automatic repeat request (ARQ) and forward error correction (FEC), as a high reliability method. In this paper, we use discrete time Markov chain to analyze the reliability of this protocol. We describe a fault model in which frame error rate (FER) depends on the value of transmit error counter (TEC). We represent the value of TEC as states of discrete time Markov chain and FER as its transition probability. By numerical calculation, we show that the average time until transition to the HALT mode in the hybrid communication protocol is longer than one in standard CAN protocol. We also argue that the average number of data frames lost before transmitting to the HALT mode caused by FEC mode depends largely on the timing of transition to the FEC mode, FER, and the length of parity group. Therefore, when the average number is large, some measures are required. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | controller area network (CAN) / hybrid communication protocol / stochastic analysis / discrete time Markov chain |
| Paper # | R2017-15 |
| Date of Issue | 2017-07-21 (R) |
| Conference Information | |
| Committee | R |
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| Conference Date | 2017/7/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Wakkanai Sun Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsushi Yuge(National Defense Academy) |
| Vice Chair | Akira Asato(Fujitsu) |
| Secretary | Akira Asato(Hosei Univ.) |
| Assistant | Shinji Inoue(Kansai Univ.) / Hiroyuki Okamura(Hiroshima Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Reliability |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reliability Analysis for CANs based-on Discrete Time Markov Chain |
| Sub Title (in English) | |
| Keyword(1) | controller area network (CAN) |
| Keyword(2) | hybrid communication protocol |
| Keyword(3) | stochastic analysis |
| Keyword(4) | discrete time Markov chain |
| 1st Author's Name | Ryohei Satoh |
| 1st Author's Affiliation | Tokyo Metropolitan University(Tokyo Metropolitan Univ.) |
| 2nd Author's Name | Satoshi Fukumoto |
| 2nd Author's Affiliation | Tokyo Metropolitan University(Tokyo Metropolitan Univ.) |
| 3rd Author's Name | Mamoru Ohara |
| 3rd Author's Affiliation | Tokyo Metropolitan University(Tokyo Metropolitan Univ.) |
| Date | 2017-07-28 |
| Paper # | R2017-15 |
| Volume (vol) | vol.117 |
| Number (no) | R-161 |
| Page | pp.pp.7-12(R), |
| #Pages | 6 |
| Date of Issue | 2017-07-21 (R) |