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Online Schedule of Sporadic Life-Critical Traffic in TTEthernet

  • Xueqian Tang
  • , Qiao Li
  • , Yuanjun Zuo
  • , Guangshan Lu
  • , Huagang Xiong
  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Time-Triggered Ethernet (TTEthernet) supports mixed-criticality traffic on a single physical network for aerospace applications. But, when a safety-critical application encounters an unexpected life-critical emergency circumstance and needs to send life-critical traffic, existed traffic classes of TTEthernet cannot meet the strict real-time requirements of the sporadic life-critical traffic because the emergency circumstance may happen at any time. Thus, the paper proposes a mode-change mechanism to transmit life-critical traffic by a modified protocol control frame with a higher transmission priority. The integration strategy of the time-triggered/rate-constrained dataflow changes from the offline porosity schedule in the normal mode to the online First-Input-First-Output schedule in the emergency mode. The simulation results show that the mode-change mechanism can meet the real-time requirements of the sporadic life-critical traffic and have a small limited impact on the end-to-end delay of other traffic classes.

源语言英语
主期刊名2019 IEEE 5th International Conference on Computer and Communications, ICCC 2019
出版商Institute of Electrical and Electronics Engineers Inc.
1312-1316
页数5
ISBN(电子版)9781728147437
DOI
出版状态已出版 - 12月 2019
活动5th IEEE International Conference on Computer and Communications, ICCC 2019 - Chengdu, 中国
期限: 6 12月 20199 12月 2019

出版系列

姓名2019 IEEE 5th International Conference on Computer and Communications, ICCC 2019

会议

会议5th IEEE International Conference on Computer and Communications, ICCC 2019
国家/地区中国
Chengdu
时期6/12/199/12/19

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