Delay Aware Fault-Tolerant Concurrent Data Collection Trees in Shared IIoT Applications

Industrial Internet of things (IIoT) refers to a network of smart devices, equipped with a variety of sensors connected to the Internet. The devices in IIoT can be shared among multiple public and/or private applications. These applications can simultaneously access the data generated by these devices, necessitating concurrent data-collection. With devices being power-constrained, the chances of device failures are high in shared device infrastructure. This results in partitioned network topology and impacts data collection. Furthermore, the network-topology reconstruction process is also energy-consuming. This paper proposes a fault-tolerant design of concurrent data col-lection process in shared IIoT applications. Via simulation, we show our proposed algorithm handles device failures without affecting the overall time-duration of concurrent data-collection and handles the faults better as compared to an existing algorithm in terms of better overall data collection time.