Although the Industrial Internet of Things (IIoT) has made great improvements in factory automation, there are still many challenges in meeting the response time and reliability requirements of IIoT communications. These challenges are because of the need for real-time communications in an industrial environment with high electromagnetic interferences. To meet these challenges, in the context of real-time industrial device communications, Controller Area Network (CAN) protocol is commonly employed, which is noise resistance, nevertheless, the presence of a faulty node in CAN networks can lead to deadline violation of messages and timing failure. In this paper, to control the behavior of nodes, message retransmission is performed based on the criticality of message reception (MRMC-CAN). The proposed method in comparison with standard CAN and WCTER-based approaches reduces consumed bandwidth by an average of 10.5% and 4.4%, respectively. Moreover, the proposed technique improves response time in comparison with standard CAN by an average of 36.19%.

Keywords