Rehmat Ullah

Research Fellow at School of Computer Science, University of St Andrews, UK.

In a nutshell

I earned my B.S. and M.S. degrees in computer science from COMSATS university Islamabad, Pakistan, and the Ph.D. degree in electronics and computer engineering from Hongik University, South Korea. Currently, I am a research fellow at the University of St Andrews, UK working with Dr. Blesson Varghese at the Edge Computing Hub in school of computer science. My main tasks at the Edge Computing Hub include: (i) conducting research in tackling system-oriented challenges of Edge computing, (ii) assisting in the development of research proposals, (iii) contributing to the supervision of PhD candidates, and (iv) coordinating and liaising with other members of the research group and the Rakuten Mobile team in Japan over work progress. Previously, I worked as a research fellow at Queen's University Belfast, UK and as an assistant professor at Gachon University, South Korea.
My 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, Internet of Things, 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.

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Education.

  • 2016-2020

    Ph.D. in Electronics and Computer Engineering

    Major in networks and distributed systems

    Department of Electronics and Computer Engineering

    Hongik University, Republic of Korea.

    Dissertation Title: “Information-Centric Edge Computing for Internet of Things and 5G: Protocol Design and Implementation.”

    Advisor: Dr. Byung-Seo Kim (Professor)

  • 2014-2016

    M.S in Computer Science MS(CS)

    Major in wireless communications and networks

    Department of Computer Science

    COMSATS University Islamabad, Islamabad Campus, Pakistan.

    Thesis Title: “QoS-Aware Energy-Efficient Communication in Smart Grid AMI Networks.”

    Advisor: Dr. Yasir Faheem (Associate Professor)

  • 2009-2013

    BS in Computer Science BS(CS)

    Department of Computer Science

    COMSATS University Islamabad, Attock Campus, Pakistan.

    Thesis Title: “Development of an Application for Autonomous Network Architechture.”

    Advisor: Dr. Zeeshan Iqbal (Assistant Professor)

Research.

Edge Computing Systems

Edge Intelligence/Edge AI

Wireless Federated Learning

Information-Centric Networking

I am currently working on distributed machine learning with a focus on federated learning for edge computing systems.

5G and beyond

Publications.

Total Impact Factor (118.234), Google Scholar, ResearchGate, ORCID, Web of Science ResearcherID.

Patents.

4.  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: 2021-11-17 Certificate, Patent

3.  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: 2021-10-06 Certificate, Patent

2.  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: 2021-05-31. Certificate, Patent

1.  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: 05-20-2022. Patent

Journal papers (SCI/SCIE).
(*=Corresponding author, **=Equal contribution/co-first author )

21. Rehmat Ullah, Di Wu, Paul Harvey, Peter Kilpatrick, Ivor Spence and Blesson Varghese “FedFly: Towards Migration in Edge-based Distributed Federated Learning,” IEEE Communications Magazine, Accepted on July 18, 2022. Article, Source Code (Impact Factor=9.03)

20.  Di Wu, Rehmat Ullah, Paul Harvey, Peter Kilpatrick, Ivor Spence and Blesson Varghese “FedAdapt: Adaptive Offloading for IoT Devices in Federated Learning,” IEEE Internet of Things Journal, 2021. Article, Source Code (Impact Factor=10.238)

19.   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 Article (Impact Factor=5.033)

18.  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 Article (Impact Factor=10.238)

17.  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 Article (Impact Factor=12.777)

16.  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 Article (Impact Factor=10.238)

15.  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. [ISSN: 0167-739X] Article (Impact Factor=7.307)

14.  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, , Article (Impact Factor=6.348)

13.  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. [ISSN:1084-8045] Article (Impact Factor=7.574) This is a joint work with Ericsson Research and MTA-BME Network Softwarization Research Group, Hungary.

12.  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. Article (Impact Factor=3.847)

11.  Jehangir Arshad, Abdul Rehman, Ateeq Ur Rehman, Rehmat Ullah*, and Seong Oun Hwang, “Spectral Efficiency Augmentation in Uplink Massive MIMO Systems by Increasing Transmit power and Uniform Linear Array Gain,” Sensors , Vol. 20, 4982, (ISSN 1424-8220) Article (Impact Factor=3.847)

10.  Muhammad Salah Udin, Muhammad Atif Ur Rehman, Rehmat Ullah, Chan Won Park and Byung-Seo Kim “Towards Network Lifetime Enhancement of Resource Constrained IoT Devices in Heterogeneous Wireless Sensor Networks.” Sensors, vol. 20, no. 15, pp. 1-23, 2020. Article (Impact Factor=3.847)

9.  Muhammad Ali Naeem , Muhammad Atif Ur Rehman, Rehmat Ullah and Byung-Seo Kim “A Comparative Performance Analysis of Papularity-based Caching Startegies of NDN based Internet Communication Architecture.” IEEE Access , vol. 8, pp. 50057-50077, 2020. doi: 10.1109/ACCESS.2020.2980385, Article (Impact Factor=3.476)

8.  Muhammad Atif Ur Rehman, Dong-Hak Kim, Kyungmee Choi , Rehmat Ullah, and Byung-Seo Kim, “A Statistical Performance Analysis of Named Data Ultra Dense Networks,” Applied Sciences, vol. 09, no. 18, pp. 1-18, 06 September 2019. Article (Impact Factor=2.838)

7.  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. Article (Impact Factor=3.847)

6.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, “NINQ: Name Integrated Query Framework for Named Data Networking of Things,” Sensors, vol. 19, no. 13, pp. 1-30, 2019. Article (Impact Factor=3.847)

5.  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, doi: 10.1109/ACCESS.2019.2914067 Article, Source Code (Impact Factor=3.476)

4.  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. doi: 10.1109/ACCESS.2018.2884536 Article (Impact Factor=3.476)

3.  Rehmat Ullah, Muhammad Khalil Afzal, and Byung-Seo Kim, “A Novel Parallel Processing Mechanism for Data Transmission in Wireless Content-Centric Networking,” Journal of Intelligent and Fuzzy Systems, vol. 35, no. 6, pp. 5815-5825, 2018. doi: 10.3233/JIFS-169824 Article (Impact Factor=1.737)

2.  Muhammad Khalil Afzal, Rehmat Ullah, Byung-Seo Kim, and Sung Won Kim, “A Reliable and Scalable Groupcast Block Acknowledgement Scheme for Video Multicast over IEEE 802.11aa Standard,” Journal of Intelligent and Fuzzy Systems, vol. 35, no. 6, pp. 5853-5865, 2018. doi: 10.3233/JIFS-169828 Article (Impact Factor=1.737)

1.  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, doi: 10.1109/ACCESS.2017.2728623 Article (Impact Factor=3.476)

Conference Proceedings and Workshops.

21.  Muhammad Salah Ud Din, Muhammad Atif Ur Rehman, Rehmat Ullah, Hyundoo Jin, and Byung-Seo Kim, “Energy-Efficient Cluster-head Declaration Mechanism for Wireless Sensor Networks,” 8th International Conference on Green and Human Information Technology, Feb. 05 ~07, 2020, Hanoi, Vietnam.

20.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, “A Compact NDN Architecture for Cluster based Information Centric Wireless Sensor Networks” Accepted as poster in the 6th ACM Conference on Information-Centric Networking, 2019, Macau, China.

19.  Donghak Kim, Rehmat Ullah, and Byung-Seo Kim, “RSP Consensus Algorithm for Blockchain” The 20th Aisa-PacificNetwork Operations and Management Symposium, September 18-20, 2019, Matsue, Japan.

18.  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.

16.  Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Named Data Networking with Edge Computing for 5G Radio Access Network” In Proceedings of the Korean Network Operations and Management (KNOM) Conference, May 30~31, 2019, Daegu, Korea.

15.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, “Caching in Named Data Networking with an Open Source Edge Computing Framework” In Proceedings of the Korean Network Operations and Management (KNOM) Conference, May-30~31, 2019, Daegu, Korea.

14.  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, 181-181. doi: https://doi.org/10.1145/3301293.3309565

13.  Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Push-based Data Broadcast Control for Information-Centric Internet of Things,” In Proceedings of the 7th International Conference on Green and Human Information Technology, Jan. 16-18, 2019, Kuala Lumpur, Malaysia.

12.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, “An In-Network Query Structure for Information Centric Sensor Networks,” In Proceedings of the 7th International Conference on Green and Human Information Technology, Jan. 16-18, 2019, Kuala Lumpur, Malaysia.

11.  Malik Nadeem, Khalid Awan, Rehmat Ullah, and Seong Oun Hwang, “DoS Attack and Countermeasures in Named Data Networking,” In Proceedings of the 7th International Conference on Green and Human Information Technology, Jan. 16-18, 2019, Kuala Lumpur, Malaysia.

10.  Rehmat Ullah, and Byung-Seo Kim, "Leveraging Named Data Networking in Edge Computing," In the NDNComm, September 19-20, 2018, NIST, Washington D.C, USA.

9.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, "Named Query Framework for Named Data Networking of Things," In the NDNComm, September 19-20, 2018, NIST, Washington D.C, USA.

8.  Muhammad Atif Ur Rehman, Rehmat Ullah, and Byung-Seo Kim, “Naming Schemes in Information-Centric Networking,” In Proceedings of the Korean Network Operations and Management (KNOM) Conference, May 10~11, 2018, Jeju Island, Korea.

7.  Rana Asif Rehman, Rehmat Ullah, Muhammad Atif Ur Rehman, and Byung-Seo Kim, “Caching and Forwarding in Named Data Networking based MANETs,” In Proceedings of the Korean Network Operations and Management (KNOM) Conference, May 10~11, 2018, Jeju Island, Korea,

6.  Rehmat Ullah, Hyundoo Jin, and Byung-Seo Kim, “A Novel Method for Delay Mitigation in Content- Centric Networking- based Wireless Networks,” In Proceedings of the 6th International Conference on Green and Human Information Technology, Jan. 31 ~ Feb. 2, 2018, Chiang Mai, Thailand.

5.  Muhammad Khalil Afzal, Rehmat Ullah, Sung Won Kim, and Byung-Seo Kim, “A Reliable and Scalable Groupcast Block Acknowledgement Scheme for Video Multicast over IEEE 802.11aa Standard,” In Proceedings of the 6th International Conference on Green and Human Information Technology, Jan. 31 ~ Feb. 2, 2018, Chiang Mai, Thailand.

4.  Rehmat Ullah, Tran Dinh Hieu, and Byung-Seo Kim, “A Multi-Metric Routing Protocol for Low-Power and Lossy Networks,” In Proceedings of the KICS Winter Conference, January 18~20, 2017, PyeongChang, Republic of Korea.

3.  Sung Hoon Mah, Hong Min Bae, Rehmat Ullah, and Byung-Seo Kim, “A Study on the Smart Home focused on the change of Housing Space,” In Proceedings of the General Meeting & Annual Autumn Conference, Nov25 ~ 26, 2016, Daegu, Republic of Korea.

2.  Naveed Ilyas, Maryam Akbar, Rehmat Ullah ,.., “SEDG: Scalable and Efficient Data Gathering Routing Protocol for Underwater WSNs,” 6th International Conference on Ambient Systems, Networks and Technologies (ANT-2015), London, UK, vol. 52, pp: 584 - 591. doi:10.1016/j.procs.2015.05.043

1.  Sheeraz Ahmed, Mariam Akbar, Rehmat Ullah ,.., “ARCUN: Analytical approach towards Reliability with Cooperation for Underwater WSNs,” 6th International Conference on Ambient Systems, Networks and Technologies (ANT-2015), London, UK. vol. 52, pp: 576-583. doi:10.1016/j.procs.2015.05.042

Editorial.

1.  Waqas Khalid, Heejung Yu , Rashid Ali and Rehmat Ullah, “Advanced Physical-Layer Technologies for Beyond 5G Wireless Communication Networks,” Sensors, 2021, 21, 3197. Editorial

Professional Activities.

Contact.

ru21 [at] st-andrews.ac.uk rehmat_ciit [at] hotmail.com rehmatkhan991
  • School of Computer Science North Haugh St Andrews Fife United Kingdom.