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Pages

Posts

Visit Shanghai Jiao Tong University

less than 1 minute read

Published:

Dr. Sean Ma was invited to visit The Digital System and Chip Research and Design Center, Shanghai Jiao Tong University from November 1, 2024, to November 30, 2024

Team building (PhD Research Group)

less than 1 minute read

Published:

Team building (BBQ) within our PhD research group. The location is One Tree Hill, Auckland, New Zealand

Invitation to McSoC2023

less than 1 minute read

Published:

I was invited to attend McSoC 2023 in Singapore.

Team building (PhD Research Group)

less than 1 minute read

Published:

Team building within our PhD research group. The location is Piha, Auckland, New Zealand

portfolio

publications

Optimized layer architecture for layered LDPC code decoder

Published in 2018 International Conference on Advanced Technologies for Communications (ATC), 2018

We proposed an optimized BPU to perform all the operations of check nodes and variable nodes of a QC-LDPC decoder.

Recommended citation: Ma, L., & Sham, C. W. (2018, October). Optimized layer architecture for layered LDPC code decoder. In 2018 International Conference on Advanced Technologies for Communications (ATC) (pp. 287-291). IEEE. https://ieeexplore.ieee.org/abstract/document/8587568/

A novel data packing technique for QC-LDPC decoder architecture applied to NAND flash controller

Published in 2019 IEEE 8th Global Conference on Consumer Electronics (GCCE), 2019

This paper presents a data packing technique for Quasi-Cyclic LDPC codes decoder applied to NAND flash controller.

Recommended citation: Ma, L., Chou, H. F., & Sham, C. W. (2019, October). A novel data packing technique for QC-LDPC decoder architecture applied to NAND flash controller. In 2019 IEEE 8th Global Conference on Consumer Electronics (GCCE) (pp. 897-898). IEEE. https://ieeexplore.ieee.org/abstract/document/9015393/

A real-time flexible telecommunication decoding architecture using FPGA partial reconfiguration

Published in IEEE Transactions on Circuits and Systems II: Express Briefs, 2019

A real-time reconfigurable decoding architecture is introduced to alleviate high computational complexity and power consumption

Recommended citation: Ma, L., Sham, C. W., Sun, J., & Tenorio, R. V. (2019). A real-time flexible telecommunication decoding architecture using fpga partial reconfiguration. IEEE Transactions on Circuits and Systems II: Express Briefs, 67(10), 2149-2153. https://ieeexplore.ieee.org/abstract/document/8906146/

SoC-FPGA-based implementation of iris recognition enhanced by QC-LDPC codes

Published in 2019 International Conference on Field-Programmable Technology (ICFPT), 2019

We focus on an iris recognition system implementation with an error correction scheme, namely QC-LDPC

Recommended citation: Ma, L., & Sham, C. W. (2019, December). Soc-fpga-based implementation of iris recognition enhanced by qc-ldpc codes. In 2019 International Conference on Field-Programmable Technology (ICFPT) (pp. 391-394). IEEE. https://ieeexplore.ieee.org/abstract/document/8977863/

Iris recognition system implementation improved by QC-LDPC codes

Published in 2020 IEEE 2nd Global Conference on Life Sciences and Technologies (LifeTech), 2020

An iris recognition system is implemented with certain LDPC codes which have the ability to correct intrinsic fuzziness.

Recommended citation: Ma, L., & Sham, C. W. (2020, March). Iris recognition system implementation improved by qc-ldpc codes. In 2020 IEEE 2nd Global Conference on Life Sciences and Technologies (LifeTech) (pp. 88-99). IEEE. https://ieeexplore.ieee.org/abstract/document/9081256/

A Novel Iris Verification Framework Using Machine Learning algorithm on Embedded Systems

Published in 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE), 2020

We propose a new iris verification framework for an embedded system which uses IrisMatch-CNN as feature extraction and classification.

Recommended citation: Lo, C. Y., Sham, C. W., & Ma, L. (2020, October). A Novel Iris Verification Framework Using Machine Learning algorithm on Embedded Systems. In 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE) (pp. 173-175). IEEE. https://ieeexplore.ieee.org/abstract/document/9291908/

An iris recognition system implementation with error correction capability by reusing WiFi standard LDPC codes

Published in 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE), 2020

The paper proposes a method to reuse IEEE 802.11n LDPC codes onto an iris recognition system based on an embedded device.

Recommended citation: Ma, L., Zhong, X., Sham, C. W., & Lo, C. Y. (2020, October). An iris recognition system implementation with error correction capability by reusing WiFi standard LDPC codes. In 2020 IEEE 9th Global Conference on Consumer Electronics (GCCE) (pp. 265-267). IEEE. https://ieeexplore.ieee.org/abstract/document/9291859/

A RISC-V SoC for mobile payment based on visible light communication

Published in 2020 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), 2020

A RISC-V SoC (system on chip) based on visible light communication (VLC) for mobile payment application is presented.

Recommended citation: Zhong, X., Sham, C. W., & Ma, L. (2020, December). A risc-v soc for mobile payment based on visible light communication. In 2020 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS) (pp. 102-105). IEEE. https://ieeexplore.ieee.org/abstract/document/9301688/

CNN Accelerator with Non-Blocking Network Design

Published in 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE), 2021

We designed a new hardware architecture that uses a non-blocking network for accelerating the convolutional neural network (CNN)

Recommended citation: Lo, C. Y., Ma, L., & Sham, C. W. (2021, October). CNN Accelerator with Non-Blocking Network Design. In 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE) (pp. 813-815). IEEE. https://ieeexplore.ieee.org/abstract/document/9622107/

A highly integrated RISC-V based SoC for on-board unit in ETC system

Published in 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE), 2021

A highly integrated system-on-chip for the on-board unit in the electronic toll collection system is presented.

Recommended citation: Zhong, X., Sham, C. W., & Ma, L. (2021, October). A highly integrated risc-v based soc for on-board unit in etc system. In 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE) (pp. 302-303). IEEE. https://ieeexplore.ieee.org/abstract/document/9622039/

A dynamically reconfigurable QC-LDPC implementation for iris recognition

Published in 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE), 2021

Extracting and analyzing iris textures for biometric recognition has been extensively studied.

Recommended citation: Ma, L., Sham, C. W., Lo, C. Y., & Zhong, X. (2021, October). A dynamically reconfigurable qc-ldpc implementation for iris recognition. In 2021 IEEE 10th Global Conference on Consumer Electronics (GCCE) (pp. 808-812). IEEE. [https://ieeexplore.ieee.org/abstract/document/9622039/](https://ieeexplore.ieee.org/abstract/document/9622068/)

Early-Stopped Technique for BCH Decoding Algorithm Under Tolerant Fault Probability

Published in International Congress on Information and Communication Technology, 2024

Recommended citation: Wang, SS., Chou, Hf., Zhong, X., Ma, S.L. (2024). Early-Stopped Technique for BCH Decoding Algorithm Under Tolerant Fault Probability. In: Yang, XS., Sherratt, S., Dey, N., Joshi, A. (eds) Proceedings of Ninth International Congress on Information and Communication Technology. ICICT 2024 2024. Lecture Notes in Networks and Systems, vol 1002. Springer, Singapore. https://doi.org/10.1007/978-981-97-3299-9_3 https://link.springer.com/chapter/10.1007/978-981-97-3299-9_3

PQDE: Comprehensive Progressive Quantization with Discretization Error for Ultra-Low Bitrate MobileNet towards Low-Resolution Imagery

Published in 2024 IEEE 6th International Conference on AI Circuits and Systems (AICAS), 2024

Recommended citation: Z. Yue, R. Wu, L. Ma, C. Fu and C. -W. Sham, "PQDE: Comprehensive Progressive Quantization with Discretization Error for Ultra-Low Bitrate MobileNet towards Low-Resolution Imagery," 2024 IEEE 6th International Conference on AI Circuits and Systems (AICAS), Abu Dhabi, United Arab Emirates, 2024 https://ieeexplore.ieee.org/abstract/document/10595949/

talks

WebVM - an innovative approach to teaching OS concepts

Published:

Elliott Wen (the major contributor) and I have developed a home-grown teaching tool, WebVM, for operating system courses. WebVM provides students instant access to an Ubuntu Linux operating system in their browser. Students have full admin access to the OS, allowing them to develop system kernel modules. Other related products such as Flexit or Coderunner won’t allow this. For SOFTENG 370 in 2024 Sem 1, we received overwhelmingly positive feedback (4.43) from the students. Many praised the effectiveness of WebVM in helping them learn important operating system concepts and practical system development skills. Students particularly enjoyed one assignment, which involved creating a Linux kernel module to control a virtual LED panel and draw a picture they like.

teaching

UoA Postgraduate Supervision experience

Postgraduate supervision, The University of Auckland, School of Computer Science, 2023

Doctor of Philosophy in Computer Science

Jiale Li (2023- Now)

The Computer Architecture for Edge Artificial Intelligence

Zhihang Liu (2023- Now)

Hardware Acceleration of Deep-learning Algorithm on FPGA for Edge Device

Zongcheng Yue (2022- Now)

Computational Architecture for Intelligent Edge Computing

Brian Zhong (2019- Now)

A Comprehensive Study on RISC-V’s Applications to AIoT Endpoint SoCs

Master of Science (Research)

Yulin Fu (2024- Now)

FPGA-Adapted Neural Network Models for Low-Latency, High-Accuracy Image recognition: An Integrated Approach

Dongwei Yan (2024- Now)

Effective Progressive Quantization: Enhancing Residual Neural Networks with Ultra-Low Precision Validation on ResNet18 and ResNet50

Master of Information and Technology (Internship)

Han(Olivia) Li (2023-2024)

Roshan Shaheen (2023-2024)

Rupak Lingwal (2023-2024)