Akram Ben Ahmed

Senior Researcher

Intelligent Platforms Research Institute
National Institute of Advanced Industrial Science and Technology (AIST)
2-3-26 Aomi, Koto-ku, Tokyo JAPAN

Phone: +81-50-3522-9122
Email: akram (dot) benahmed (at) aist (dot) go (dot) jp

orcid.org/0000-0002-1253-8620

Profile

Akram BEN AHMED received his B.S. degree in Computer Science from the University of Sfax, Tunisia in 2009. He received his M.S.E and Ph.D. degrees in Computer Science and Engineering from the University of Aizu, Japan in 2012 and 2015, respectively. Upon his graduation, he joined the Amano laboratory at Keio University, Japan, as a postdoctoral researcher. He is currently a Senior Research Scientist at the National Institute of Advanced Industrial Science and Technology (AIST), Japan

Research Interests

Edge-computing communication
FPGA-based AI acceleration
On-chip interconnections
Reliability and Fault-tolerant systems
Ultra low-power embedded systems

Journals

A. Ben Ahmed, T. Hirofuchi and T. Fukai, "Hardware Design and Evaluation of an FPGA-Based Network Switch Supporting Asynchronous Traffic Shaping for Time Sensitive Networking," in IEEE Access, vol. 12, pp. 123149-123165, Sept. 2024
N. -D. Nguyen, K. N. Dang, A. B. Ahmed, A. B. Abdallah and X. -T. Tran, "NOMA: A Novel Reliability Improvement Methodology for 3-D IC-based Neuromorphic Systems," in IEEE Transactions on Components, Packaging and Manufacturing Technology, Oct. 2024 (Early Access)
Ullah IMDAD, Akram BEN AHMED, Kazuei HIRONAKA, Kensuke IIZUKA, Hideharu AMANO, A Multi-FPGA Implementation of FM-Index Based Genomic Pattern Search, IEICE Transactions on Information and Systems, Volume E106.D, Issue 11, Pages 1783-1795, Nov. 2023
N. -D. Nguyen, A. B. Ahmed, A. B. Abdallah and K. N. Dang, "Power-Aware Neuromorphic Architecture With Partial Voltage Scaling 3-D Stacking Synaptic Memory," in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 31, no. 12, pp. 2016-2029, Dec. 2023
K. N. Dang, A. B. Ahmed, A. B. Abdallah and X. -T. Tran, "HotCluster: A Thermal-Aware Defect Recovery Method for Through-Silicon-Vias Toward Reliable 3-D ICs Systems," in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 41, no. 4, pp. 799-812, Apr. 2022
Miho YAMAKURA, Ryousei TAKANO, Akram BEN AHMED, Midori SUGAYA, Hideharu AMANO, A Multi-Tenant Resource Management System for Multi-FPGA Systems, IEICE Transactions on Information and Systems, Volume E104.D, Issue 12, Pages 2078-2088, Dec. 2021
Kazuei HIRONAKA, Kensuke IIZUKA, Miho YAMAKURA, Akram BEN AHMED, Hideharu AMANO, Remote Dynamic Reconfiguration of a Multi-FPGA System FiC (Flow-in-Cloud), IEICE Transactions on Information and Systems, Volume E104.D, Issue 8, Pages 1321-1331, Aug. 2021
K. N. Dang, A. B. Ahmed, Y. Okuyama and A. B. Abdallah, "Scalable Design Methodology and Online Algorithm for TSV-Cluster Defects Recovery in Highly Reliable 3D-NoC Systems," in IEEE Transactions on Emerging Topics in Computing, vol. 8, no. 3, pp. 577-590, Oct. 2020
K. N. Dang, M. C. Meyer, A. B. Ahmed, A. B. Abdallah and X. -T. Tran, "A Non-Blocking Non-Degrading Multiple Defects Link Testing Method for 3D-Networks-on-Chip," in IEEE Access, vol. 8, pp. 59571-59589, March 2020
K. N. Dang, A. B. Ahmed, A. B. Abdallah and X. -T. Tran, "TSV-OCT: A Scalable Online Multiple-TSV Defects Localization for Real-Time 3-D-IC Systems," in IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 28, no. 3, pp. 672-685, March 2020
Hayate Okuhara, Akram Ben Ahmed, Johannes Maximilian Kühn, Hideharu Amano, ''Asymmetric Body Bias Control with Low Power FD-SOI Technologies: Modeling and Power Optimization", IEEE Transactions on Very Large Scale Integration Systems, 26 (7) 1254-1267, July 2018.
Hayate Okuhara, Akram Ben Ahmed, Hideharu Amano, ''Digitally Assisted On-chip Body Bias Tuning Scheme for Ultra Low-power VLSI Systems", IEEE Transactions on Circuits and Systems I: Regular Papers, 65 (10) 3241 - 3254, October 2018.
Khanh N. Dang, Akram Ben Ahmed, Xuan-Tu Tran, Yuichi Okuyama, Abderazek Ben Abdallah, ''Scalable design methodology and online algorithm for TSV-cluster defects recovery in highly reliable 3D-NoC systems", IEEE Transactions on Emerging Topics in Computing, October 2017 (In press).
Khanh N. Dang, Akram Ben Ahmed, Yuichi Okuyama, Abderazek Ben Abdallah, ''A Comprehensive Reliability Assessment of Fault-Resilient Network-on-Chip Using Analytical Model". IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 25 (11) 3099-3112, November 2017.
Akram Ben Ahmed, Hiroki Matsutani, Michihiro Koibuchi, Kimiyoshi Usami, and Hideharu Amano, ''Multi-Voltage Variable Pipeline Routers with the Same Clock Frequency for Low-power Network-on-Chips Systems", IEICE Transactions on Electronics, E99-C (8) 909-917, August 2016.
Akram Ben Ahmed and Abderazek Ben Abdallah, ''Adaptive Fault-Tolerant Architecture and Routing Algorithm for Reliable Many-Core 3D-NoC systems", Journal of Parallel and Distributed Computing, 93 (94) 30-43, July 2016.
Akram Ben Ahmed and Abderazek Ben Abdallah, ''Graceful deadlock-free Fault-tolerant Routing Algorithm for 3D-Network-on-Chip Architectures", Journal of Parallel and Distributed Computing. 74 (4) 2229-2240, April 2014.
Akram Ben Ahmed and Abderazek Ben Abdallah, ''Architecture and Design of High-throughput, Low-latency and Fault Tolerant Routing Algorithm for 3D-Network-on-Chip", The Journal of Supercomputing, 66 (3) 1507-1532, December 2013.

International Conferences

A. Ben Ahmed, T. Hirofuchi and T. Fukai, "FPGA-Based Network Switch Architecture Supporting Credit Based Shaper for Time Sensitive Networks," 2024 IEEE 29th International Conference on Emerging Technologies and Factory Automation (ETFA), pp. 1-8, Oct. 2024
A. Ben Ahmed, R. Takano and T. Hirofuchi, "Exploring the Potential of Error-permissive Communication in Multi-FPGA-based Edge Computing," 2022 IEEE 15th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC), Penang, Malaysia, 2022, pp. 93-97
Y. Yamauchi, A. B. Ahmed, K. Hironaka, K. Iizuka and H. Amano, "Horizontal division of deep learning applications with all-to-all communication on a multi-FPGA system," 2020 Eighth International Symposium on Computing and Networking Workshops (CANDARW), pp. 277-281, Nov. 2020
K. N. Dang, A. B. Ahmed, F. Z. Rokhani, A. B. Abdallah and X. -T. Tran, "A thermal distribution, lifetime reliability prediction and spare TSV insertion platform for stacking 3D-ICs," 2020 International Conference on Advanced Technologies for Communications (ATC), Oct. 2020, pp. 50-55
Ullah, M.M.I., Ben Ahmed, A., Amano, H. (2020). Implementation of FM-Index Based Pattern Search on a Multi-FPGA System. In: Rincón, F., Barba, J., So, H., Diniz, P., Caba, J. (eds) Applied Reconfigurable Computing. Architectures, Tools, and Applications. ARC 2020. Lecture Notes in Computer Science(), vol 12083, Mar. 2020
K. N. Dang, M. C. Meyer, A. B. Ahmed, A. B. Abdallah and X. -T. Tran, "2D-PPC: A single-correction multiple-detection method for Through-Silicon-Via Faults," 2019 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), pp. 109-112, Nov. 2019
K. Azegami, Kazusa Musha, Kazuei Hironaka, Akram Ben Ahmed, Michihiro Koibuch and Yao Hu, "A STDM (Static Time Division Multiplexing) Switch on a Multi-FPGA System," 2019 IEEE 13th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC), pp. 328-333, Oct. 2019
Yuxi Sun, Akram Ben Ahmed, and Hideharu Amano, "Acceleration of Deep Recurrent Neural Networks with an FPGA cluster", In Proceedings of the 10th International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies (HEART '19), pp. 1–4, June 2019
K. N. Dang, A. B. Ahmed and X. -T. Tran, "An on-Communication Multiple-TSV Defects Detection and Localization for Real-Time 3D-ICs," 2019 IEEE 13th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC), pp. 223-228, Oct. 2019
Kazuei Hironaka, Kensuke Iizuka, Akram Ben Ahmed, M M Imdad Ullah, Yugo Yamauchi, Yuxi Sun, Miho Yamakura, Aoi Hiruma and Hideharu Amano "Demonstration of Flow-in-Cloud: A Multi-FPGA System," 2019 29th International Conference on Field Programmable Logic and Applications (FPL), pp. 417-418, Sept. 2019
K. Dang, A. Ben Ahmed, A. Ben Abdallah and X. -T. Tran, "TSV-IaS: Analytic Analysis and Low-Cost Non-Preemptive on-Line Detection and Correction Method for TSV Defects," 2019 IEEE Computer Society Annual Symposium on VLSI (ISVLSI), pp. 501-506, Jul. 2019
Akram Ben Ahmed, Daichi Fujiki, Hiroki Matsutani, Michihiro Koibuchi and Hideharu Amano, ''AxNoC: Low-power Approximate Network-on-Chips using Critical-Path Isolation", In Proc. of the 12th IEEE/ACM International Symposium on Networks-on-Chip (NOCS-2018), Turin, Italy, pp. 44-51, October, 2018 (Best Paper Award Candidate).
Akram Ben Ahmed, Hayate Okuhara, Hiroki Matsutani, Michihiro Koibuchi and Hideharu Amano, ''Adaptive Body Bias Control Scheme for Ultra Low-power Network-on-Chip Systems", In Proc. of the IEEE 7th International Symposium on Embedded Multicore SoCs (MCSoC-18), Hanoi, Vietnam, pp. 146-153 , September, 2018.
Hayate Okuhara, Akram Ben Ahmed, Johannes Maximilian Kühn and Hideharu Amano, ''Leveraging asymmetric body bias control for low power LSI design", In Proc. of the IEEE COOL Chips XIX, Yokohama, Japan, pp. 1-3, April, 2017.
Johannes Maximilian Kühn, Akram Ben Ahmed, Hayate Okuhara, Hideharu Amano, Oliver Bringmann, and Wolfgang Rosenstiel, ''MuCCRA4-BB: A Fine-Grained Body Biasing Capable DRP", In Proc. of the IEEE COOL Chips, Yokohama, Japan, pp. 1-3, April, 2016.
Michael Meyer, Akram Ben Ahmed, Yuki Tanaka, Abderazek Ben Abdallah, ''On the Design of a Fault-tolerant Photonic Network-on-Chip", In Proc. of the IEEE International Conference on Systems, Man, and Cybernetics, Hong Kong, pp. 821-826, October, 2015.
Michael Meyer, Akram Ben Ahmed, Yuichi Okuyama, and Abderazek Ben Abdallah, ''FTTDOR: Microring Fault-resilient Optical Router for Reliable Network-on-Chip Systems", In Proc. of the IEEE 9th International Symposium on Embedded Multicore SoCs (MCSoC-15), Turin, Italy, pp. 227-234, September, 2015.
Abderazek Ben Abdallah, Mitsuhiro Nakamura, Akram Ben Ahmed, Michael Meyer, Yuichi Okuyama, ''Fault-tolerant Router for Highly-reliable Many-core 3D-NoC Systems", In Proc. of the 3rd International Scientific Conference on Engineering and Applied Sciences (ISCEAS 2015), Okinawa, Japan, July, 2015.
Akram Ben Ahmed, Michael Meyer, Yuichi Okuyama, Abderazek Ben Abdallah, ''Adaptive Error- and Traffic-aware Router Architecture for Electrical 3D Network-on-Chip Systems", In Proc. of the IEEE 8th International Symposium on Embedded Multicore SoCs (MCSoC-14), Aizu-Wakamatsu, Japan, pp. 197-204, September, 2014.
Akram Ben Ahmed, Achraf Ben Ahmed, and Abderazek Ben Abdallah, ''Deadlock-Recovery Support for Fault-tolerant Routing Algorithms in 3D-NoC Architectures", In Proc. of the IEEE 7th International Symposium on Embedded Multicore SoCs (MCSoC-13), Tokyo, Japan, pp. 67-72, September, 2012.
Akram Ben Ahmed, Takayuki Ochi, Shohei Miura, A. Ben Abdallah, ''Run-Time Monitoring Mechanism for Efficient Design of Application-specific NoC Architectures in Multi/Manycore Era", In Proc. of the 6th International Workshop on Engineering Parallel and Multicore Systems, Taichung, Taiwan, pp. 440-445, July, 2013.
Akram Ben Ahmed, Abderazek Ben Abdallah, ''Low-overhead Routing Algorithm for 3D Network-on-Chip", In Proc. of the 3rd International Conference on Networking and Computing (ICNC-12), Okinawa, Japan, pp. 23-32, December, 2012.
Akram Ben Ahmed, Abderazek Ben Abdallah, ''LA-XYZ: Low Latency, High Throughput Look-Ahead Routing Algorithm for 3D Network-on-Chip (3D-NoC) Architecture", In Proc. of the IEEE 6th International Symposium on Embedded Multicore SoCs (MCSoC-12), Aizu-Wakamatsu, Japan, pp. 167-174, September, 2012.
Akram Ben Ahmed, Kenichi Mori, Abderazek Ben Abdallah, ''ONoC-SPL Customized Network-on-Chip (NoC) Architecture and Prototyping for Data-intensive Computation Applications", In Proc. of the 4th International Conference on Awareness Science and Technology (iCAST-2012), Seoul, South Korea, pp. 257-262, August,2012.
Akram Ben Ahmed, Abderazek Ben Abdallah, Kenichi Kuroda ''Architecture and Design of Efficient 3D Network-on-Chip (3D NoC) for Custom Multi-Core SoC", In Proc. of the 5th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA-2010), Fukuoka, Japan, pp. 67-73, November 4-6, 2010 (Best Paper Award).