Industrial Internet of Things: Challenges, Opportunities, and Directions
Abstract
Internet of Things (IoT) is an emerging domain that promises ubiquitous connection to the Internet, turning common objects into connected devices. The IoT paradigm is changing the way people interact with things around them. It paves the way for creating pervasively connected infrastructures to support innovative services and promises better flexibility and efficiency. Such advantages are attractive not only for consumer applications, but also for the industrial domain. Over the last few years, we have been witnessing the IoT paradigm making its way into the industry marketplace with purposely designed solutions. In this paper, we clarify the concepts of IoT, Industrial IoT, and Industry 4.0. We highlight the opportunities brought in by this paradigm shift as well as the challenges for its realization. In particular, we focus on the challenges associated with the need of energy efficiency, real-time performance, coexistence, interoperability, and security and privacy. We also provide a systematic overview of the state-of-the-art research efforts and potential research directions to solve Industrial IoT challenges.
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The physical isolation model of OT security has eroded rapidly.
“This model has eroded rapidly.[5], [29]”
From Zero Trust Architecture for Smart Factories: Securing Digital Twins and Cyber-Physical OT Systems (2026) · cites this paper as [29]
Early industrial control systems employed proprietary fieldbus protocols PROFIBUS, Modbus, and DNP3 over dedicated hardware links largely inaccessible to adversaries without physical proximity.
“Early industrial control systems employed proprietary fieldbus protocols PROFIBUS, Modbus, and DNP3 over dedicated hardware links largely inaccessible to adversaries without physical proximity.[29], [12]”
From Zero Trust Architecture for Smart Factories: Securing Digital Twins and Cyber-Physical OT Systems (2026) · cites this paper as [29]
Operational Technology security has historically relied on the physical isolation paradigm.
“Operational Technology security has historically relied on the physical isolation paradigm.”
From Zero Trust Architecture for Smart Factories: Securing Digital Twins and Cyber-Physical OT Systems (2026) · cites this paper as [29]
Edge gateways authenticate the originating device via mutual TLS (mTLS), verify each telemetry payload's digital signature, and forward only cryptographically verified payloads to the transport layer.
“Edge gateways perform the first verification step: they authenticate the originating device via mutual TLS (mTLS), verify each telemetry payload's digital signature, and forward only cryptographically verified payloads to the transport layer.[29]”
From Zero Trust Architecture for Smart Factories: Securing Digital Twins and Cyber-Physical OT Systems (2026) · cites this paper as [29]
When mobile edge computing (MEC) is used, it makes network congestion worse, especially for tasks requiring a lot of data bits, which could result in task failure and a long queue.
“When mobile edge computing (MEC) is used, it makes network congestion worse, especially for tasks requiring a lot of data bits, which could result in task failure and a long queue [36].”
From A Critical Overview of Industrial Internet of Things Security and Privacy Issues Using a Layer-Based Hacking Scenario (2023) · cites this paper as [36]
PI organizes data around named tags inside asset hierarchies; enterprise systems organize data around relational keys and dimensional models.
“PI organizes data around named tags inside asset hierarchies; enterprise systems organize data around relational keys and dimensional models.”
From Data Observability Framework for Mission-Critical Industrial ETL Pipelines: Anomaly Detection, SLA Modeling, and Proactive Failure Identification (2026) · cites this paper as [7]
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Rehman, M. H. U., Dirir, A. M., Salah, K., Damiani, E., & Svetinovic, D. (2021) · IEEE Transactions on Industrial Informatics · doi:10.1109/tii.2021.3075706 · Cited by 132 · see citing works
Dew-Cloud-Based Hierarchical Federated Learning for Intrusion Detection in IoMT
Singh, P., Gaba, G. S., Kaur, A., Hedabou, M., & Gurtov, A. (2023) · IEEE Journal of Biomedical and Health Informatics · doi:10.1109/jbhi.2022.3186250 · Cited by 103 · see citing works
An Experimental Analysis of Security Vulnerabilities in Industrial IoT Devices
Jiang, X., Lora, M., & Chattopadhyay, S. (2020) · ACM Transactions on Internet Technology · doi:10.1145/3379542 · Cited by 101 · see citing works
Key Challenges and Emerging Technologies in Industrial IoT Architectures: A Review
Mirani, A. A., Velasco-Hernandez, G., Awasthi, A., & Walsh, J. (2022) · Sensors · doi:10.3390/s22155836 · Cited by 119 · see citing works
SDN-Enabled Energy-Efficient Routing Optimization Framework for Industrial Internet of Things
Naeem, F., Tariq, M., & Poor, H. V. (2021) · IEEE Transactions on Industrial Informatics · doi:10.1109/tii.2020.3006885 · Cited by 83 · see citing works
Self-Sovereign Identity: Use-cases, Technologies, and Challenges for Industrial IoT
Bartolomeu, P. C., Vieira, E., Hosseini, S. M., & Ferreira, J. (2019) · 2019 24th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA) · doi:10.1109/etfa.2019.8869262 · Cited by 79 · see citing works
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“ing plant facility boundaries, the left horizontal axis relies on the IEC 62890 standard and represents life cycles with associated value streams followed by continuous data acquisition enabling rapid and dynamic response to demand changes [76].”
BackgroundInfluentialSecuring IIoT using Defence-in-Depth: Towards an End-to-End secure Industry 4.0
Mosteiro-Sanchez, A., Barcelo, M., Astorga, J., & Urbieta, A. (2020) · Journal of Manufacturing Systems · doi:10.1016/j.jmsy.2020.10.011 · Cited by 64 · see citing works
Kebande, V. R. (2022) · Forensic Science International Reports · doi:10.1016/j.fsir.2022.100257 · Cited by 58 · see citing works
Supervisory control and data acquisition approach in node-RED: Application and discussions
Nițulescu, I.-V., & Korodi, A. (2020) · IoT · doi:10.3390/iot1010005 · Cited by 53 · see citing works
Secure Partial Aggregation: Making Federated Learning More Robust for Industry 4.0 Applications
Gao, J., Zhang, B., Guo, X., Baker, T., Li, M., & Liu, Z. (2022) · IEEE Transactions on Industrial Informatics · doi:10.1109/tii.2022.3145837 · Cited by 41 · see citing works
Eyeleko, A. H., & Feng, T. (2023) · IEEE Internet of Things Journal · doi:10.1109/jiot.2023.3308195 · Cited by 38 · see citing works
“However, the architecture itself poses difficulties in terms of communication protocol inefficiencies, network congestion, and latency problems [34], [35], [36].”
BackgroundDataStream XES Extension: Embedding IoT Sensor Data into Extensible Event Stream Logs
Mangler, J., Grüger, J., Malburg, L., Ehrendorfer, M., Bertrand, Y., Benzin, J.-V., Rinderle-Ma, S., Serral Asensio, E., & Bergmann, R. (2023) · Future Internet · doi:10.3390/fi15030109 · Cited by 33 · see citing works
“The recent developments and technologies used in the Industrial Internet of Things ( IIoT ) [1] demand a more intelligent and interconnected process-based control of IoT devices [2].”
MethodA Survey on Internet of Things (IoT), Industrial IoT (IIoT) and Industry 4.0
Deshpande, S. N., & Jogdand, R. M. (2020) · International Journal of Computer Applications · doi:10.5120/ijca2020920790 · Cited by 16 · see citing works
Securing Remote User Authentication in Industrial Internet of Things
Nimmy, K., Sankaran, S., Achuthan, K., & Calyam, P. (2022) · 2022 IEEE 19th Annual Consumer Communications & Networking Conference (CCNC) · doi:10.1109/ccnc49033.2022.9700512 · Cited by 13 · see citing works
Wireless Technologies and Applications for Industrial Internet of Things: A Review
Bahri, N., Saadaoui, S., Tabaa, M., Sadik, M., & Medromi, H. (2021) · Advances in Intelligent Systems and Computing · doi:10.1007/978-981-15-6048-4_44 · Cited by 9 · see citing works
Industrial IoT: Challenges and Mitigation Policies
Kumar, P., Singh, A., & Sengupta, A. (2021) · Lecture Notes on Data Engineering and Communications Technologies · doi:10.1007/978-981-16-0965-7_13 · Cited by 1 · see citing works
Zero Trust Architecture for Smart Factories: Securing Digital Twins and Cyber-Physical OT Systems
Alagappan, V. (2026) · International Journal of Artificial Intelligence, Data Science, and Machine Learning · doi:10.63282/3050-9262.ijaidsml-v7i2p109
Sojitra, E. (2026) · American International Journal of Computer Science and Technology · doi:10.63282/3117-5481/aijcst-v8i3p101
- Authors
- Sisinni, E., Saifullah, A., Han, S., Jennehag, U., & Gidlund, M.
- Affiliations
- University of Brescia (IT)
- Wayne State University (US)
- University of Connecticut (US)
- Venue
- IEEE Transactions on Industrial Informatics
- Published
- 2018-11
- Volume
- 14
- Issue
- 11
- Pages
- 4724-4734
- ISSN
- 1551-3203 (ISSN-L)
- 1941-0050
- OpenAlex
- W2811266402
- Cited by
- 2,380
- References
- 88
- Citations by year
- 2026: 189 · 2025: 287 · 2024: 346 · 2023: 372 · 2022: 417 · 2021: 384 · 2020: 251 · 2019: 119 · 2018: 14 · 2014: 1
- FWCI
- 159.05
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Industrial Informatics (publishedVersion)
- Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Industrial and Manufacturing Engineering › Digital Transformation in Industry
- Physical Sciences › Computer Science › Computer Networks and Communications › IoT and Edge/Fog Computing
- Physical Sciences › Computer Science › Information Systems › Internet of Things and AI
- Keywords
- Industrial Internet of Things, Industry 4.0, energy efficiency, real-time performance, coexistence, interoperability, privacy and security, IoT devices, research challenges
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