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A conditional retransmission enabled transport protocol for real-time networked control systems

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3 Author(s)
Li Gui ; Fac. of Sci. & Technol., Queensland Univ. of Technol., Brisbane, QLD, Australia ; Yu-Chu Tian ; Fidge, C.

Real-time networked control systems (NCSs) over data networks are being increasingly implemented on a massive scale in industrial applications. Along with this trend, wireless network technologies have been promoted for modern wireless NCSs (WNCSs). However, popular wireless network standards such as IEEE 802.11/15/16 are not designed for real-time communications. Key issues in real-time applications include limited transmission reliability and poor transmission delay performance. Considering the unique features of real-time control systems, this paper develops a conditional retransmission enabled transport protocol (CRETP) to improve the delay performance of the transmission control protocol (TCP) and also the reliability performance of the user datagram protocol (UDP) and its variants. Key features of the CRETP include a connectionless mechanism with acknowledgment (ACK), conditional retransmission and detection of ineffective data packets on the receiver side.

Published in:

Local Computer Networks (LCN), 2011 IEEE 36th Conference on

Date of Conference:

4-7 Oct. 2011