REA-6TiSCH: Reliable Emergency-Aware Communication Scheme for 6TiSCH Networks
| Autor: | Mikael Gidlund, Hossam Farag, Patrik Österberg, Simone Grimaldi |
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| Rok vydání: | 2021 |
| Předmět: |
Schedule
Computer Networks and Communications business.industry Computer science Reliability (computer networking) 010401 analytical chemistry 020206 networking & telecommunications 02 engineering and technology Communications system 01 natural sciences 0104 chemical sciences Computer Science Applications IPv6 Protocol stack Hardware and Architecture Signal Processing 0202 electrical engineering electronic engineering information engineering Key (cryptography) business Information Systems Computer network Communication channel |
| Zdroj: | IEEE Internet of Things Journal. 8:1871-1882 |
| ISSN: | 2372-2541 |
| Popis: | From the perspective of the emerging Industrial Internet of Things (IIoT), the 6TiSCH working group has been created with the main goal to integrate the capabilities of the IEEE 802.15.4e time-slotted channel hopping (TSCH) with the IPv6 protocol stack. In order to support time-critical applications in IIoT, reliable real-time communication is a key requirement. Specifically, aperiodic critical traffic, such as emergency alarms, must be reliably delivered to the destination-oriented directed acyclic graph root within strict deadline bounds to avoid system failure or safety-critical situations. Currently, there is no mechanism defined in the 6TiSCH architecture for timely and reliably handling of such traffic and its prioritization over the noncritical one. In this article, we introduce REA-6TiSCH, a reliable emergency-aware communication scheme to support real-time communications of emergency alarms in 6TiSCH networks. In REA-6TiSCH, the aperiodic emergency traffic is opportunistically enabled to hijack transmission cells preassigned for the regular periodic traffic in the TSCH schedule. Moreover, we introduce a distributed optimization scheme to improve the probability that an emergency flow is delivered successfully within its deadline bound. To the best of our knowledge, this is the first approach to incorporate emergency alarms in 6TiSCH networks. We evaluate the performance of REA-6TiSCH through extensive simulations and the results show the effectiveness of our proposed method in handling emergency traffic compared to the Orchestra scheme. Additionally, we discuss the applicability of REA-6TiSCH and provide guidelines for real implementation in 6TiSCH networks. |
| Databáze: | OpenAIRE |
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