Cardiff School of Technologies>Staff Profiles>Rehmat Ullah

Dr Rehmat Ullah

Department: Department of Computer Science

Office/Location: Cardiff School of Technologies, Llandaff Campus

Telephone:

Email: rullah@cardiffmet.ac.uk

Staff Overview

​Dr. Rehmat currently works as a Lecturer (Assistant Professor) at Cardiff school of technologies, Cardiff Metropolitan University, UK. He earned his B.S. and M.S. degrees in computer science from COMSATS university Islamabad, Pakistan, and his Ph.D. degree in electronics and computer engineering from Hongik University, South Korea. After obtaining a PhD degree he worked as an Assistant Professor at Gachon University, South Korea. Then he moved to UK, where he gained his post-doctoral experience at the University of St Andrews, Scotland, UK and Queen’s University Belfast, Northern Ireland, UK. During this time, he worked on various projects in the area of Edge Computing, Edge Intelligence/Edge AI, Internet of Things and 5G with various industries such as Ericsson Hungary and Rakuten Mobile Japan.

His work has appeared in more than 45 research papers in peer reviewed conferences and top journals such as IEEE Communications Magazine, IEEE Internet of Things journal, IEEE Transactions on Network Science and Engineering, IEEE Wireless Communications Magazine, Journal of Network and Computer Applications, and Future Generation Computer Systems. He currently holds four patents, and his two US patents are under review.

In terms of professional service, Dr Rehmat has served as a member of the technical program committee, as a keynote speaker and as a session chair for several flagship conferences such as ACM ICN, ACM IMC, and as an invited reviewer for numerous high-impact journals. In 2022, Dr. Rehmat was recognized as Global Talent by the Royal Academy of Engineering, UK. More information is available from his personal website at www.rehmatkhan.com

Teaching

​His research and teaching activities have primarily focused on network and distributed systems, particularly edge/fog computing, information centric networking and 5G evolution and beyond with a recent focus on distributed machine learning such as federated learning for edge computing systems.

At the University of St Andrews, UK and Queen’s University Belfast, he actively contributed to the supervision of several PhD and MEng students. At Cardiff School of Technologies, he is currently supervising six undergraduate students.

He is available for PhD/MPhil/MSc/BSc supervision in the following areas:

  • Edge computing systems
  • Edge intelligence/Edge AI
  • Distributed machine learning for edge computing systems
  • Information-centric networking
  • 5G and beyond

Research

​Dr Rehmat’s research focuses on the broader areas of network and distributed systems particularly the development of architectures, algorithms, and protocols for emerging paradigms, such as edge computing, edge Intelligence/edge AI, information centric networking, and 5G evolution and beyond with a recent focus on federated learning for edge computing systems. This includes the design, measurement studies, prototyping, testbed development, and performance evaluations.

Major interests research includes:

  • Edge computing systems
  • Edge intelligence/Edge AI
  • Distributed machine learning for edge computing systems
  • Information-centric networking
  • 5G and beyond

Key Publications

Journals/Conferences (Selected):

  1. Rehmat Ullah, Di Wu, Paul Harvey, Peter Kilpatrick, Ivor Spence and Blesson Varghese “"FedFly: Toward Migration in Edge-Based Distributed Federated Learning," in IEEE Communications Magazine, vol. 60, no. 11, pp. 42-48, November 2022, (Impact Factor=9.03)
  2. Di Wu, Rehmat Ullah, Paul Harvey, Peter Kilpatrick, Ivor Spence and Blesson Varghese "FedAdapt: Adaptive Offloading for IoT Devices in Federated Learning," in IEEE Internet of Things Journal, vol. 9, no. 21, pp. 20889-20901, 1 Nov.1, 2022, (Impact Factor=10.238)
  3. Gary Cleland, Di Wu, Rehmat Ullah, and Blesson Varghese, “FedComm: Understanding Communication Protocols for Edge-based Federated Learning,” 15th IEEE/ACM International Conference on Utility and Cloud Computing (UCC2022,) December 6-9, 2022 - Vancouver, Washington, USA (27% acceptance rate)
  4. Quang Ngoc Nguyen, Rehmat Ullah, Byung-Seo Kim, Rosilah Hassan, Takuro Sato, and Tarik Taleb “A Cross-layer Green Information-Centric Networking Design toward Energy Internet”, IEEE Transactions on Network Science and Engineering, vol. 9, no. 3, pp. 1577-1593, 1 May-June 2022, (Impact Factor=5.033)
  5. Muhammad Ali Naeem, Rehmat Ullah, Yahui Meng, Rashid Ali, and Bilal Ahmed Lodhi “Caching Content on the Network Layer: A Performance Analysis of Caching Schemes in ICN-based Internet of Things,” IEEE Internet of Things Journal, vol. 9, no. 9, pp. 6477-6495, May 1, 2022, (Impact Factor=10.238)
  6. Boubakr Nour, Spyridon Mastorakis, Rehmat Ullah and Nicholas Stergiou “Information-Centric Networking in Wireless Environments: Security Risks and Challenges,” IEEE Wireless Communications Magazine, vol. 28, no. 2, pp. 121-127, April 2021, (Impact Factor=12.777)
  7. Muhammad Atif Ur Rehman, Rehmat Ullah, Byung-Seo Kim, Boubakr Nour, and Spyridon Mastorakis “CCIC-WSN: An Architecture for Single Channel Cluster-based Information-Centric Wireless Sensor Networks,” IEEE Internet of Things Journal, vol. 8, no. 9, pp. 7661-7675, 1 May1, 2021, (Impact Factor=10.238)
  8. Rehmat Ullah, Muhammad Atif Ur Rehman, Muhammad Ali Naeem, Byung-Seo Kim and Spyridon Mastorakis “ICN with Edge for 5G: Exploiting In-network Caching in ICN-based Edge Computing for 5G Networks.” Future Generation Computer Systems, Vol. 111, pp. 15-174, October 1st, 2020, (Impact Factor=7.307)
  9. Muhammad Salah ud Din, Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim “Improving Lifetime of Resource-constrained IoT Devices by Mitigating Redundant Transmissions in Heterogeneous Wireless Multimedia of Things,” Digital Communication and Networks, (Impact Factor=6.348)
  10. Balázs Sonkoly, Dávid Haja, Balázs Németh, Márk Szalay, János Czentye, János Dóka, Róbert Szabó, Rehmat Ullah, Byung-Seo Kim, and László Toka “Scalable Edge Cloud Platforms for IoT Services.” Journal of Network and Computer Applications, Vol.170, pp. 1-18, 15 November 2020. (Impact Factor=7.574)
  11. Andrew Churcher, Rehmat Ullah, Jawad Ahmad, Sadaqat ur Rehman, Fawad Masood, Mandar Gogate, Fehaid Alqahtani, Boubakr Nour, and William J. Buchanan “An Experimental Analysis of Attack Classification Using Machine Learning in IoT Networks,” Sensors, 2021, 21, 446, (Impact Factor=3.847)
  12. Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Hierarchical Name-Based Mechanism for Push-Data Broadcast Control in Information-Centric Multihop Wireless Networks,” Sensors, vol. 19, no. 14, pp. 1-18, 2019, (Impact Factor=3.847)
  13. Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Design and Implementation of an Open-Source Framework and Prototype For Named Data Networking based Edge Cloud Computing System,” IEEE Access, vol. 7, pp. 57741-57759, 2019, (Impact Factor=3.476)
  14. Rehmat Ullah, Syed Hassan Ahmed, and Byung-Seo Kim, “Information-Centric Networking with Edge Computing for IoT: Research Challenges and Future Directions,” IEEE Access, vol. 6, pp. 73465-73488, 2018, (Impact Factor=3.476)
  15. Rehmat Ullah, Yasir Faheem, and Byung-Seo Kim, “Energy and Congestion-aware Routing Metric for Smart Grid AMI Networks in Smart City,” IEEE Access, Volume 5, No. 1, pp.13799-13810, 2017, (Impact Factor=3.476)
  16. Rehmat Ullah, Muhammad Atif Ur Rehman, Byung-Seo Kim, Balázs Sonkoly, and János Tapolcai “On Pending Interest Table in Named Data Networking Based Edge Computing: The Case of Mobile Augmented Reality,” The 11th International Conference on Ubiquitous and Future Networks, July 2 (Tue.) ~ July 5 (Fri.), 2019, Zagreb, Croatia.
  17. Rehmat Ullah, Muhammad Atif Ur Rehman, Byung-Seo Kim, and Seong Oun Hwang, “RAPEL: Robust and Adaptive Method for PIT Entry Lifetime in Wireless Content-Centric Networks,” The 11th International Conference on Ubiquitous and Future Networks, July 2 (Tue.) ~ July 5 (Fri.), 2019, Zagreb, Croatia.
  18. Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “A Testbed implementation of NDN based Edge Computing for Mobile Augmented Reality,” In Proceedings of the 20th International Workshop on Mobile Computing Systems and Applications (HotMobile '19). ACM, New York, NY, USA.


Patents:

  1. Rehmat Ullah, Dong-Hak Kim, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Method for Push-based Data Broadcast Control in Information-Centric Internet of Things," Registration No: 10-2327947, Date granted: 17-11-2021
  2. Rehmat Ullah, Dong-Hak Kim, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Method for enabling Information Centric Networking-based Edge Computing in 5G Networks." Registration No: 10-2310212, Date granted: 06-10-2021
  3. Rehmat Ullah, Hyeon Du Jin, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Integration System of Named Data Networking-based Edge Cloud Computing for Internet of Things." Registration No: 10-2260781, Date granted: 31-05-2021
  4. Muhammad Atif Ur Rehman, Muhammad Khalil Afzal, Rehmat Ullah, Byung Seo Kim “Method to communication in Cluster-based Information-Centric Wireless Networks." Registration No: 10-2404984, Date granted: 20-05-2022


Software/open-source projects:

  1. FedFly: Towards Migration in Edge-based Distributed Federated Learning, source code can be downloaded from https://github.com/qub-blesson/fedfly
  2. FedAdapt: Adaptive Offloading for IoT Devices in Federated Learning, source code can be downloaded from https://github.com/qub-blesson/FedAdapt
  3. FedComm: Understanding Communication Protocols for Edge based Federated Learning, source code can be downloaded from https://github.com/qub-blesson/FedComm
  4. NEC: An Open-Source Framework for Name Data Networking, Edge Computing, and Cloud Computing, source code can be downloaded from https://github.com/acmsigcomm18hackathon/hackathonprojects


Other Projects and activities

​Invited and keynote talks:

  1. Edge Federated Learning: Recent Advances and Open Research Problems, at the 1st International Conference on Trends and Innovations in Smart Technologies October 07-08, 2022, London, United Kingdom
  2. Edge Computing: What is it and Why Does it Matter? at 2021 Summer School, IEEE Seoul Section, Sensors Council Chapter, July 16, 2021 (Virtual)
  3. Edge AI: Federated Learning for Edge Computing Systems, at Brain Korea 21: Research Team for Super-Distributed Autonomous Computing Service Technologies, June 23, 2021 (Virtual)
  4. Information Centric Networking with Edge Computing for 5G and beyond, at Budapest University of Technology and Economics (BME), Building I, Science Park, July 1, 2019, Budapest, Hungary.
  5. An Open-Source Framework for Name Data Networking (NDN), Edge Computing, and Cloud Computing, at Nokia Bell Labs, August 25, 2018, Budapest, Hungary.


TPC/Session chair: International Conferences and Workshops:

  1. TPC Co Chair at Workshop on "Metaverse-based Networking and Computing” 28 May – 01 June 2023, Rome, Italy
  2. Session chair: 3rd International Conference of Advanced Computing and Informatics held in Faculty of science Ain Chock - 15-16 October 2022, Casablanca, Morocco.
  3. TPC member: 9th ACM Conference on Information-Centric Networking (ICN 2022), Sept. 19–21, 2022, Osaka Japan
  4. Session chair: ICN Applications and Wireless Networking at the 9th ACM Conference on Information-Centric Networking (ICN 2022), Sept. 19–21, 2022, Osaka Japan
  5. Chair of Emerging Technologies Track at the Second International Conference of Smart Systems and Emerging Technologies 15- 17 March 2022, Prince Sultan University, Riyadh, Saudi Arabia.
  6. Technical Advisory Committee (TAC): ICIHPE 2020 October 14 - 18 2020, Virtual Conference
  7. PC member: The Sixteenth International Conference on Wireless and Mobile Communications June 28 - July 02, 2020, Athens, Greece.
  8. Shadow TPC Member: ACM Internet Measurement Conference, 2018, Boston, MA, USA.
  9. 1st ACM MobiHoc Workshop on Networking and Cybersecurity for Smart Cities, June 25, 2018, Los Angeles.
  10. IEEE Consumer Communications & Networking Conference, January 12-15, 2018, Las Vegas, USA.
  11. 4th International Workshop: Research Advancements in Future Internet Architectures, June 3-6, 2018, Porto, Portugal.
  12. IEEE 87th Vehicular Technology Conference: VTC2018-Spring, June 3–6, 2018, Porto, Portugal.

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