Network Coded Constrained Application Protocol With Improved Energy Efficiency for IIoT Networks

Qinbin Zhou

doi:10.1109/JIOT.2023.3241055

Network Coded Constrained Application Protocol With Improved Energy Efficiency for IIoT Networks

2023-06-15

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DOI：10.1109/JIOT.2023.3241055

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Abstract

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Constrained application protocol (CoAP) for low-power low-rate data transport in Industrial Internet of Things (IIoT) networks is typically running with two modes, namely, confirmable mode and nonconfirmable mode, respectively. Confirmable mode relies on retransmission to ensure a guaranteed Quality of Service (QoS) in terms of packet loss rate at the cost of increased latency and power consumption. Whereas nonconfirmable mode consumes less power, it is known to be packet loss prone. To enrich the CoAP transport for IIoT networks, we propose a packet-level forward error correction (FEC) mechanism based on systematic coding with an adaptive code rate to provide energy efficient and reliable packet delivery. We mathematically analyze packet loss and cost of energy consumption of the proposed mechanism and compare it with the confirmable CoAP transport scheme in the Gilbert-Elliott channel model. We demonstrate that the proposed mechanism can enhance the performance of nonconfirmable CoAP to be comparable to confirmable CoAP in terms of packet loss rate, while outperforming it in energy consumption. The analytical and simulation results verify that the proposed mechanism is suitable for IIoT networks especially in high-erasure burstiness scenarios.

Keywords:

Reliability

Industrial Internet of Things

Forward error correction

Energy consumption

Receivers

Protocols

Channel models

Constrained application protocol (CoAP)

energy efficiency

forward error correction (FEC)

Industrial Internet of Things (IIoT)

Network Coded Constrained Application Protocol With Improved Energy Efficiency for IIoT Networks

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