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AODR: A Novel Retransmission Scheme for WIA-FA Networks

: Shi, H.; Zheng, M.; Liang, W.; Zhang, J.; Kasparick, M.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE International Conference on Communications, ICC 2020. Proceedings : Dublin, Ireland, 7 - 11 June 2020
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-5089-5
ISBN: 978-1-7281-5090-1
6 S.
International Conference on Communications (ICC) <2020, Online>
Fraunhofer HHI ()

In industrial wireless sensor networks (IWSNs), monitoring data generated by field devices are supposed to be delivered to the gateway with low latency and high reliability. However, most of industrial wireless standards are based on IEEE 802.15.4 and offer limited data rates, which prevents their adoption in critical scenarios. Based on IEEE 802.11, WIA-FA is proposed to address higher communication requirements in factory automation. In this paper, we first analyze the drawbacks of the default NACK-based retransmission scheme of WIA-FA, and then propose an automatic on-demand retransmission (AODR) scheme. Finally, we give a detailed reliability analysis of the proposed AODR scheme. Simulation results show that the proposed AODR scheme outperforms existing works in terms of reliability for different scenarios.