Dr. Rehan Ahmed

Assistant Professor and Chairperson, Department of computer and software Engineering

PhD - Electrical Engineering, University of Wisconsin-Madison, USA

  • rehan.ahmed@newitu2.itu.edu.pk

RESEARCH INTERESTS

Dr Rehan's research has spanned the field of real-time/embedded systems. This field involves careful co-design of hardware and software components for a given set of requirements and constraints. Dr Rehan has researched the design and analysis of these systems, focusing on their reliability and quality of service aspects. Specific topics include thermal constrained scheduling, mixed-critical systems, energy harvesting systems, and thermal security considerations in computing platforms.

Biography

Dr. Rehan Ahmed has been a part of the Computer Engineering Department at Information Technology University, Lahore, since June 2020. He completed his BSc. in Electrical Engineering from UET Lahore in 2007. Following this, he worked at LUMS SSE for one year as a Research Associate. In 2008, he went to University of Wisconsin Madison, USA, and earned his Master and a Ph.D. degree in Electrical Engineering from there in 2010 and 2015 respectively. His research at UW Madison was on Real-Time Systems. Specifically, he worked on consolidating the timing constraints of the real-time tasks with thermal constraints of the processing platform. Upon finishing his doctorate, Dr. Rehan joined TEC (Link), ETH Zurich, Switzerland as a postdoctoral researcher. As part of this group, Dr. Rehan diversified his research to include energy harvesting systems, mixed-criticality systems, and thermal security considerations, among other sub-fields. From March 2019 to May 2020, Dr. Rehan was an Assistant Professor at the Faculty of Electrical Engineering, GIK Institute.

Journal
  • Rehan Ahmed, Bernhard Buchli, Pratyush Kumar, and Lothar Thiele. “Optimal Power Management With Guaranteed Minimum Energy Utilization For Solar Energy Harvesting Systems”. In: ACM Transactions on Embedded Computing Systems (TECS), July 2019. Link
  • Rehan Ahmed, Pengcheng Huang, Max Millen, and Lothar Thiele. “On the Design and Application of Thermal Isolation Servers”. In: ACM Transactions on Embedded Computing Systems (TECS) 16.5s (Oct. 2017). p. 165. Link
  • Georgia Giannopoulou, Pengcheng Huang, Rehan Ahmed, Davide B Bartolini, and Lothar Thiele. “Isolation scheduling on multicores: model and scheduling approaches”. In: Real-Time Systems (May 2017). pp. 1–54. Link
  • Rehan Ahmed, Parameswaran Ramanathan, and Kewal K Saluja. “Necessary and Sufficient Conditions for Thermal Schedulability of Periodic Real-Time Tasks Under Fluid Scheduling Model”. In: ACM Transactions on Embedded Computing Systems (TECS) 15.3 (July 2016). Link, p. 49.
  • Faheem Sheikh, Shahid Masud, and Rehan Ahmed. “Superscalar architecture design for high-performance DSP operations”. In: Microprocessors and Microsystems 33.2 (Mar. 2009). pp. 154–160. Link
 
Conference
  1. Stefan Draskovic, Rehan Ahmed, Cong Lin, and Lothar Thiele. “A Case for Atmospheric Transmittance: Solar Energy Prediction in Wireless Sensor Nodes”. In: The 14th IEEE International Conference On Green Computing and Communications (GreenCom 2018).July 2018. Link
  2. Pengcheng Huang, Georgia Giannopoulou, Rehan Ahmed, Davide B Bartolini, and Lothar Thiele. “An isolation scheduling model for multicores”. In: IEEE Real-Time Systems Symposium (RTSS). Dec. 2015, pp. 141–152. Link
  3. (Best Student Paper) Rehan Ahmed, Ayoosh Bansal, Bhuvana Kakunoori, Parameswaran Ramanathan, and Kewal K Saluja. “Thermal Extension of the Total Bandwidth Server”. In: IEEE International Conference on VLSI Design (VLSID). Jan. 2015, pp. 47–52. Link  
  4. Rehan Ahmed, Parameswaran Ramanathan, and Kewal K Saluja. “Necessary and sufficient conditions for thermal schedulability of periodic real-time tasks”. In: IEEE Euromicro Conference on Real-Time Systems (ECRTS). July 2014, pp. 243–252. Link
  5. Rehan Ahmed, Parameswaran Ramanathan, and Kewal K Saluja. “Temperature minimization using power redistribution in embedded systems”. In: IEEE International Conference on VLSI Design (VLSID). Jan. 2014, pp. 264–269. Link
  6. Rehan Ahmed, Parameshwaram Ramanathan, Kewal K Saluja, and Chunhua Yao. “Scheduling aperiodic tasks in next generation embedded real-time systems”. In: IEEE International Conference on VLSI Design (VLSID). Jan. 2013, pp. 25–30. Link
  7. Rehan Ahmed, Parameswaran Ramanathan, and Kewal K Saluja. “On thermal utilization of periodic task sets in uni-processor systems”. In: IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA). Aug. 2013, pp. 267–276. Link
  8. Abdur Rahman M Maud, Shahid Masud, and Rehan Ahmed. “Architecture level design space exploration of superscalar processor for multimedia applications”. In: IEEE International Symposium on Performance Evaluation of Computer & Telecommunication Systems (SPECTS 2009). Vol. 41. July 2009, pp. 21–26. Link
  9. Rehan Ahmed, Faheem Sheikh, and Shahid Masud. “Power aware design of superscalar architecture for high performance DSP operations”. In: IEEE Canadian Conference on Electrical and Computer Engineering (CCECE). May 2008, pp. 433–438. Link
 

  • Gerald Holdridge Teaching Excellence Award 2014 at UW Madison
  • Best student paper award at IEEE International Conference on VLSI Design, 2015.
  • Referee services for the following journals/conferences:
    • ACM Transaction on Embedded Computing Systems (TECS)
    • Journal of Parallel and Distributed Computing (JPDC)
    • IEEE Design and Test (DTSI)
    • Euromicro Conference on Real-Time Systems (ECRTS)
    • Real-Time Systems Symposium (RTSS)
    • International Conference on VLSI Design (VLSID)

  • 2020: Assistant Professor at ITU
  • 2019 - 2020: Assistant Professor at GIKI
  • 2015 -2019: Postdoctoral Researcher at ETHZ
  • 2009 - 2015: MS, Ph.D student at UW Madison
  • 2007-2008: Research Associate at LUMS
  • 2003 - 2007: BSc. Electrical Engineering student at UET Lahore