Hemant Kumar Apat
Hemant Kumar Apat
Assistant Professor
Dr. Hemant Kumar Apat is an academic and researcher in the field of Cloud and Fog Computing, Internet of Things (IoT), Blockchain-assisted Security, and Optimization Algorithms. He earned his Ph.D. in Computer Science and Engineering from the National Institute of Technology (NIT) Rourkela, where his doctoral research focused on developing performance enhancement strategies for fog–cloud computing environments. His work proposed innovative task placement and optimization techniques aimed at minimizing latency, energy consumption, and cost while ensuring secure and scalable service delivery in IoT-based systems. He is currently serving as an Assistant Professor at the School of Computer Applications, KIIT Deemed-to-be University, Bhubaneswar, where he teaches core computer science subjects including Cloud Computing, Data Structures, Design and Analysis of Algorithms, Optimization Theory, and Data Mining. He obtained his M.Tech. from Maulana Azad National Institute of Technology (MANIT), Bhopal, in 2018, where he explored graph-theoretic approaches in bioinformatics. Dr. Apat’s research outcomes include several SCI-indexed publications, international conference papers, book chapters, and multiple patent filings. His current research continues to focus on optimizing distributed computing architectures and integrating emerging technologies for sustainable and intelligent IoT-driven applications.
Research Interests
Fog Computing, Internet of Things, Cloud Computing
Fog Computing, Internet of Things, Cloud Computing
Journals/Conferences :
International Journals
------------------------
1.H. K. Apat, B. Sahoo, “JaGW: A hybrid meta-heuristic algorithm for IoT workflow placement in fog computing environment,” Simulation Modelling Practice and Theory (Elsevier), 2025, Vol. 144 pp. 103163. DOI: 10.1016/j.simpat.2025.103163. [IF: 4.6]
1. H. K. Apat, B. Sahoo, “LESP: A fault-aware Internet of Things service placement in fog computing,” Sustainable Computing: Informatics and Systems (Elsevier), 2025 Vol: 46, pp. 101097, DOI: 10.1016/j.suscom.2025.101097. [IF: 5.7]
2.H. K. Apat, Veena Goswami, Bibhudatta Sahoo, Rabindra K. Barik, Manob Jyoti Saikia, “Fog Service Placement Optimization: A Survey of State-of-the-Art Strategies and Techniques,” Computers (MDPI), 2025, Vol. 8, Issue: 6, pp-99,DOI: 10.3390/computers14030099. [IF: 4.2]
3.H. K. Apat, B. Sahoo, “A Blockchain assisted fog computing for secure distributed storage system for IoT Applications,” Journal of Industrial Information Integration (Elsevier),2024 Vol: 42, pp. 100739. DOI: 10.1016/j.jii.2024.100739. [IF: 11.6]
4. H.K. Apat, Bibhudatta Sahoo, Veena Goswami, Rabindra K. Barik , “A Hybrid Meta-Heuristic Algorithm for Multi-Objective IoT Service Placement in Fog Computing Environments”, Decision Analytics (Elsevier), 2023- Vol: 10, Issue 6, pp. 100379, DOI: 10.1016/j.dajour.2023.100379. [Scopus]
5. H. K. Apat, Rashmiranjan Nayak, Bibhudatta Sahoo, “A comprehensive review on Internet of Things application placement in Fog computing environment,” Internet of Things Engineering (Elsevier), 2023, Vol: 23(6): pp. 100866, DOI: 10.1016/j.iot.2023.100866. [IF: 7.6]
6.Sunil K. Panigrahi, Veena Goswami, H. K. Apat, Ganga B. Mund, Himansu Das, Rabindra K. Barik, “PQ-Mist: Priority Queueing Assisted Mist–Cloud–Fog System for Geospatial Web Services,” Fuzzy Logic and Computational Intelligence (MDPI), 2023 Vol. 11(16): 3562, DOI: 10.3390/math11163562. [IF: 2.2]
7.Sunil K. Panigrahi, Veena Goswami, H. K. Apat, Rabindra K. Barik, Ankit Vidyarthi, Punit Gupta, Meshal Alharbi, “An interconnected IoT-inspired network architecture for data visualization in remote sensing domain,” Alexandria Engineering Journal (Elsevier), 2023 Vol: 81, pp:17–28. DOI: 10.1016/j.aej.2023.08.078. [IF: 6.6]
8. P. Maiti, H. K. Apat, B. Sahoo, A. K. Turuk, “An effective approach of latency-aware fog smart gateways deployment for IoT services,” Internet of Things (Elsevier), 2019, Vol: 8(6), pp: 100091. DOI: 10.1016/j.iot.2019.10009. [IF: 7.6]
International Conferences
----------------------------
1.H. K. Apat, Pranati Sattarapu, Rudra Narayan Dash, Veena Goswami, Sagarika Mohanty, Rabindra K. Barik, “Leveraging towards Multi-objective IoT Application Placement in Fog Computing Environment” IEEE International Conference on Smart Technologies for Power, Energy and Control (STPEC), 2023, pp. 1–6. DOI: 10.1109/STPEC59253.2023.10430628.
2. H. K. Apat, B. Sahoo, S. Mohanty, M. Mukul, R. K. Barik, “A Blockchain assisted fog computing framework for secure data sharing mechanism in smart home” 2023 IEEE International Conference on Contemporary Computing and Communications (InC4), Bangalore, India, 2023, pp. 1–6. DOI: 10.1109/InC457730.2023.10262985.
3.H. K. Apat, B. Sahoo, S. Mohanty, “A Quality of Service (QoS) aware Fog Computing model for intelligent (IoT) applications” 19th OITS International Conference on Information Technology (OCIT), 2021, pp. 267–272. DOI: 10.1109/OCIT53463.2021.00061.
4. H. K. Apat, K. Bhaisare, B. Sahoo, P. Maiti, “Energy Efficient Resource Management in Fog Computing Supported Medical Cyber-Physical System” International Conference on Computer Science, Engineering and Applications (ICCSEA), 2020 pp. 1–6. DOI: 10.1109/ICCSEA49143.2020.9132855.
5.H. K. Apat, B. Sahoo, K. Bhaisare, P. Maiti, “An Optimal Task Scheduling Towards Minimized Cost and Response Time in Fog Computing Infrastructure” International Conference on Information Technology (ICIT), Bhubaneswar, India, 2019, pp. 160–165. DOI: 10.1109/ICIT48102.2019.00035.
6. S. Mohanty, A. S. Shekhawat, B. Sahoo, H. K. Apat, P. Khare, “Minimizing Latency for Controller Placement Problem in SDN”, 19th OITS International Conference on Information Technology (OCIT), Bhubaneswar, India, 2019 pp. 393–398. DOI: 10.1109/OCIT53463.2021.00083.
7.H. K. Apat, B. Sahoo, P. Maiti, “Service Placement in Fog Computing Environment”, International Conference on Information Technology (ICIT), 2018, Bhubaneswar, India, pp. 272–277. DOI: 10.1109/ICIT.2018.00062.
9.P. Maiti, H. K. Apat, A. Kumar, B. Sahoo, A. K. Turuk, “Deployment of Multi-tier Fog Computing System for IoT Services in Smart City” IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), Goa, India, 2019 pp. 1–6. DOI: 10.1109/ANTS47819.2019.9117921.
10.H. K. Apat, B. Sahoo, P. Maiti, P. Patel, “Review on QoS Aware Resource Management in Fog Computing Environment” IEEE International Symposium on Sustainable Energy, Signal Processing and Cyber Security (iSSSC), Gunupur, Odisha, India, 2020, pp. 1–6. DOI: 10.1109/iSSSC50941.2020.9358897.
11.H. K. Apat, K. Bhaisare, B. Sahoo, P. Maiti, “A Nature-Inspired-Based Multi-objective Service Placement in Fog Computing Environment” , In Intelligent Systems: Proceedings of ICMIB 2020, Singapore: Springer Singapore, 2020, pp. 293–304.
12.P. Maiti, H. K. Apat, M. Altowayti, S. Sahoo, B. Sahoo, A. K. Turuk, “QoS-aware Service Provisioning in Heterogeneous Fog computing supporting IoT Applications”, International Conference on Vision Towards Emerging Trends in Communication and Networking (ViTECoN), Vellore, India, 2019, pp. 1–5. DOI: 10.1109/ViTECoN.2019.8899417.
Book Chapters
1.H. K. Apat, B. Sahoo, P. Madapathi, P. Maiti, “SDN-Enabled Fog Computing Architecture” , In Software-Defined Networking for Future Internet Technology, Apple Academic Press, 2021, pp. 217–236. ISBN: 978-1-003-1457-21.
2.P. Maiti, B. Sahoo, A. K. Turuk, H. K. Apat, “Micro-Service Provisioning in the Multi-Tier SDN-Fog Architecture for IoT Applications”, In Software-Defined Networking for Future Internet Technology, Apple Academic Press, 2021, pp. 217–236. ISBN: 978-1-003-1457-21.
3.H. K. Apat, R. Nayak, B. Sahoo, S. Mohanty, “Application Placement in Fog-enabled Internet of Things (IoT) Healthcare System using Body Sensor Networks”, In Handbook of Research on Mathematical Modeling for Smart Healthcare Systems, 2022, IGI Global. ISBN: 978-1-6684-4580-8.
4. S. Mohanty, B. Sahoo, H. K. Apat, “An Overview of Software Defined Internet of Vehicles” In Handbook of SDN Supported Edge-Cloud Interplay for Next Generation Internet of Things, Chapman and Hall/CRC. 2022, ISBN: 978-1-0032-1387-1.
5. H. K. Apat, B. Sahoo, S. Mohanty, K. S. Sahoo, “A Scalable Software Defined Edge Computing Model for Sustainable Smart City Internet of Things (IoT) Application” In Handbook of SDN Supported Edge-Cloud Interplay for Next Generation Internet of Things, Chapman and Hall/CRC, 2022, ISBN: 978-1-0032-1387-1.
Patents
--------
1.Md. Akram Khan, B. Sahoo, Sambit Kumar Mishra, H. K. Apat, “Energy Efficient Container Consolidation in Cloud Data Center”, Indian Patent Application No: 202531083582A, Published: 2025-09-12, 2025, Status: Published
2.H. K. Apat, B. Sahoo, S. Mohanty, A. Kumar, “Smart Adaptive Suspension Device,” Indian Patent Application No: 438186-001. Published: 2024-11-30. Status: Published.
3. H. K. Apat, P. M. Khilar, B. S.ahoo, S. Mohanty, “IoT Based Fog Cloud Storage Device” Indian Patent Application No: 456100-001. Published: 2025-04-21. Status: Granted.
4. H. K. Apat, V. Goswami, R. K. Barik, “Fog Computing Task Prioritization and Placement for IoT Applications Using Priority Queue-Based Framework” Indian Patent Application No: 202431093464. Published: 2024-11-29. Status: Published.
5. H. K. Apat, B. Sahoo, P. Maiti, “Interoperable Edge Gateway Controller for Managing Heterogeneous IoT Devices in Three-Layer Fog Computing Architecture” Indian Patent Application No: 202431095872, 2024, Published: 2024-12-20. Status: Published.
International Journals
------------------------
1.H. K. Apat, B. Sahoo, “JaGW: A hybrid meta-heuristic algorithm for IoT workflow placement in fog computing environment,” Simulation Modelling Practice and Theory (Elsevier), 2025, Vol. 144 pp. 103163. DOI: 10.1016/j.simpat.2025.103163. [IF: 4.6]
1. H. K. Apat, B. Sahoo, “LESP: A fault-aware Internet of Things service placement in fog computing,” Sustainable Computing: Informatics and Systems (Elsevier), 2025 Vol: 46, pp. 101097, DOI: 10.1016/j.suscom.2025.101097. [IF: 5.7]
2.H. K. Apat, Veena Goswami, Bibhudatta Sahoo, Rabindra K. Barik, Manob Jyoti Saikia, “Fog Service Placement Optimization: A Survey of State-of-the-Art Strategies and Techniques,” Computers (MDPI), 2025, Vol. 8, Issue: 6, pp-99,DOI: 10.3390/computers14030099. [IF: 4.2]
3.H. K. Apat, B. Sahoo, “A Blockchain assisted fog computing for secure distributed storage system for IoT Applications,” Journal of Industrial Information Integration (Elsevier),2024 Vol: 42, pp. 100739. DOI: 10.1016/j.jii.2024.100739. [IF: 11.6]
4. H.K. Apat, Bibhudatta Sahoo, Veena Goswami, Rabindra K. Barik , “A Hybrid Meta-Heuristic Algorithm for Multi-Objective IoT Service Placement in Fog Computing Environments”, Decision Analytics (Elsevier), 2023- Vol: 10, Issue 6, pp. 100379, DOI: 10.1016/j.dajour.2023.100379. [Scopus]
5. H. K. Apat, Rashmiranjan Nayak, Bibhudatta Sahoo, “A comprehensive review on Internet of Things application placement in Fog computing environment,” Internet of Things Engineering (Elsevier), 2023, Vol: 23(6): pp. 100866, DOI: 10.1016/j.iot.2023.100866. [IF: 7.6]
6.Sunil K. Panigrahi, Veena Goswami, H. K. Apat, Ganga B. Mund, Himansu Das, Rabindra K. Barik, “PQ-Mist: Priority Queueing Assisted Mist–Cloud–Fog System for Geospatial Web Services,” Fuzzy Logic and Computational Intelligence (MDPI), 2023 Vol. 11(16): 3562, DOI: 10.3390/math11163562. [IF: 2.2]
7.Sunil K. Panigrahi, Veena Goswami, H. K. Apat, Rabindra K. Barik, Ankit Vidyarthi, Punit Gupta, Meshal Alharbi, “An interconnected IoT-inspired network architecture for data visualization in remote sensing domain,” Alexandria Engineering Journal (Elsevier), 2023 Vol: 81, pp:17–28. DOI: 10.1016/j.aej.2023.08.078. [IF: 6.6]
8. P. Maiti, H. K. Apat, B. Sahoo, A. K. Turuk, “An effective approach of latency-aware fog smart gateways deployment for IoT services,” Internet of Things (Elsevier), 2019, Vol: 8(6), pp: 100091. DOI: 10.1016/j.iot.2019.10009. [IF: 7.6]
International Conferences
----------------------------
1.H. K. Apat, Pranati Sattarapu, Rudra Narayan Dash, Veena Goswami, Sagarika Mohanty, Rabindra K. Barik, “Leveraging towards Multi-objective IoT Application Placement in Fog Computing Environment” IEEE International Conference on Smart Technologies for Power, Energy and Control (STPEC), 2023, pp. 1–6. DOI: 10.1109/STPEC59253.2023.10430628.
2. H. K. Apat, B. Sahoo, S. Mohanty, M. Mukul, R. K. Barik, “A Blockchain assisted fog computing framework for secure data sharing mechanism in smart home” 2023 IEEE International Conference on Contemporary Computing and Communications (InC4), Bangalore, India, 2023, pp. 1–6. DOI: 10.1109/InC457730.2023.10262985.
3.H. K. Apat, B. Sahoo, S. Mohanty, “A Quality of Service (QoS) aware Fog Computing model for intelligent (IoT) applications” 19th OITS International Conference on Information Technology (OCIT), 2021, pp. 267–272. DOI: 10.1109/OCIT53463.2021.00061.
4. H. K. Apat, K. Bhaisare, B. Sahoo, P. Maiti, “Energy Efficient Resource Management in Fog Computing Supported Medical Cyber-Physical System” International Conference on Computer Science, Engineering and Applications (ICCSEA), 2020 pp. 1–6. DOI: 10.1109/ICCSEA49143.2020.9132855.
5.H. K. Apat, B. Sahoo, K. Bhaisare, P. Maiti, “An Optimal Task Scheduling Towards Minimized Cost and Response Time in Fog Computing Infrastructure” International Conference on Information Technology (ICIT), Bhubaneswar, India, 2019, pp. 160–165. DOI: 10.1109/ICIT48102.2019.00035.
6. S. Mohanty, A. S. Shekhawat, B. Sahoo, H. K. Apat, P. Khare, “Minimizing Latency for Controller Placement Problem in SDN”, 19th OITS International Conference on Information Technology (OCIT), Bhubaneswar, India, 2019 pp. 393–398. DOI: 10.1109/OCIT53463.2021.00083.
7.H. K. Apat, B. Sahoo, P. Maiti, “Service Placement in Fog Computing Environment”, International Conference on Information Technology (ICIT), 2018, Bhubaneswar, India, pp. 272–277. DOI: 10.1109/ICIT.2018.00062.
9.P. Maiti, H. K. Apat, A. Kumar, B. Sahoo, A. K. Turuk, “Deployment of Multi-tier Fog Computing System for IoT Services in Smart City” IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), Goa, India, 2019 pp. 1–6. DOI: 10.1109/ANTS47819.2019.9117921.
10.H. K. Apat, B. Sahoo, P. Maiti, P. Patel, “Review on QoS Aware Resource Management in Fog Computing Environment” IEEE International Symposium on Sustainable Energy, Signal Processing and Cyber Security (iSSSC), Gunupur, Odisha, India, 2020, pp. 1–6. DOI: 10.1109/iSSSC50941.2020.9358897.
11.H. K. Apat, K. Bhaisare, B. Sahoo, P. Maiti, “A Nature-Inspired-Based Multi-objective Service Placement in Fog Computing Environment” , In Intelligent Systems: Proceedings of ICMIB 2020, Singapore: Springer Singapore, 2020, pp. 293–304.
12.P. Maiti, H. K. Apat, M. Altowayti, S. Sahoo, B. Sahoo, A. K. Turuk, “QoS-aware Service Provisioning in Heterogeneous Fog computing supporting IoT Applications”, International Conference on Vision Towards Emerging Trends in Communication and Networking (ViTECoN), Vellore, India, 2019, pp. 1–5. DOI: 10.1109/ViTECoN.2019.8899417.
Book Chapters
1.H. K. Apat, B. Sahoo, P. Madapathi, P. Maiti, “SDN-Enabled Fog Computing Architecture” , In Software-Defined Networking for Future Internet Technology, Apple Academic Press, 2021, pp. 217–236. ISBN: 978-1-003-1457-21.
2.P. Maiti, B. Sahoo, A. K. Turuk, H. K. Apat, “Micro-Service Provisioning in the Multi-Tier SDN-Fog Architecture for IoT Applications”, In Software-Defined Networking for Future Internet Technology, Apple Academic Press, 2021, pp. 217–236. ISBN: 978-1-003-1457-21.
3.H. K. Apat, R. Nayak, B. Sahoo, S. Mohanty, “Application Placement in Fog-enabled Internet of Things (IoT) Healthcare System using Body Sensor Networks”, In Handbook of Research on Mathematical Modeling for Smart Healthcare Systems, 2022, IGI Global. ISBN: 978-1-6684-4580-8.
4. S. Mohanty, B. Sahoo, H. K. Apat, “An Overview of Software Defined Internet of Vehicles” In Handbook of SDN Supported Edge-Cloud Interplay for Next Generation Internet of Things, Chapman and Hall/CRC. 2022, ISBN: 978-1-0032-1387-1.
5. H. K. Apat, B. Sahoo, S. Mohanty, K. S. Sahoo, “A Scalable Software Defined Edge Computing Model for Sustainable Smart City Internet of Things (IoT) Application” In Handbook of SDN Supported Edge-Cloud Interplay for Next Generation Internet of Things, Chapman and Hall/CRC, 2022, ISBN: 978-1-0032-1387-1.
Patents
--------
1.Md. Akram Khan, B. Sahoo, Sambit Kumar Mishra, H. K. Apat, “Energy Efficient Container Consolidation in Cloud Data Center”, Indian Patent Application No: 202531083582A, Published: 2025-09-12, 2025, Status: Published
2.H. K. Apat, B. Sahoo, S. Mohanty, A. Kumar, “Smart Adaptive Suspension Device,” Indian Patent Application No: 438186-001. Published: 2024-11-30. Status: Published.
3. H. K. Apat, P. M. Khilar, B. S.ahoo, S. Mohanty, “IoT Based Fog Cloud Storage Device” Indian Patent Application No: 456100-001. Published: 2025-04-21. Status: Granted.
4. H. K. Apat, V. Goswami, R. K. Barik, “Fog Computing Task Prioritization and Placement for IoT Applications Using Priority Queue-Based Framework” Indian Patent Application No: 202431093464. Published: 2024-11-29. Status: Published.
5. H. K. Apat, B. Sahoo, P. Maiti, “Interoperable Edge Gateway Controller for Managing Heterogeneous IoT Devices in Three-Layer Fog Computing Architecture” Indian Patent Application No: 202431095872, 2024, Published: 2024-12-20. Status: Published.