MEMBER

Sangbu Yun

Ph.D. Student (Integrated Ph.D. Program),

Department of Electrical Engineering,

Pohang University of Science and Technology (POSTECH)

Contact Information

• Address : #4219, Information & Electronics Building (E3-2), KAIST, Daejeon, Korea

• Email : sb9767[at]postech.ac.kr / boo.epiclab[at]gmail.com

• Office : +82-(0)42-350-7579

Educational Backgrounds

• [2021/09~Present] Ph.D. Candidate in Electrical Engineering, POSTECH, Pohang, Korea

• [2017/03~2021/08] B.S. in Electrical Engineering, POSTECH, Pohang, Korea

Professional Experiences

• [2025/08~Present] Visiting Researcher, Sch. Electrical Engineering, KAIST, Daejoen, Korea

• [2024/10~2025/02] Visiting Researcher, Dept. EECS, University of Michigan, Ann Arbor, USA

• [2019/06~Present] Research Assistant, Dept. Electrical Engineering, POSTECH, Pohang, Korea

Research Interests

• Intelligent Mobile System-on-Chip

• Digital Signal Processing Hardware Architecture

• ASIC/FPGA Implementation

• HW/SW Co-design

• Parallel Computing

• 5G Communication systems

Publications

• International Journal Papers

  1. Jaehee Kim, Changhyeon Kim, Sangbu Yun, Dongyun Kam, Soonhyun Kwon, Yongjune Kim, and Youngjoo Lee*, "Hybrid ordered statistics decoding of short-length BCH codes for URLLC systems: Theoretical analysis and decoder implementation," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 72, no. 11, pp. 6528-6540, Nov. 2025. (Invited)

  2. Wonhee Lee+, Jin Hyun+, Seung-Ick Choi, Sangbu Yun, Kwangho Chung, Seok Jong Chung, Jun Kyu Hwang, Eun Joo Yang, Youngjoo Lee*, and Na Young Kim*, "Distinguishing pathologic gait in older adults using instrumented insoles and deep neural networks," IEEE Journal of Biomedical and Health Informatics, vol. 29, no. 7, pp. 4758-4768, July 2025.

  3. Sangbu Yun+, Jeongwon Choe+, and Youngjoo Lee*, "High-throughput software-defined LDPC encoder and decoder with x86-based data-level parallelism," IEEE Transactions on Vehicular Technology, vol. 74, no. 1, pp. 50-60, Jan. 2025.

  4. Dain Park, Dongyun Kam, Sangbu Yun, Jeongwon Choe, and Youngjoo Lee*, "Hard-decision SCL polar decoder with weighted pruning operation for storage applications," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 71, no. 9, pp. 4181-4185, Sep. 2024.

  5. Sangbu Yun, Seungsik Moon, Yo-Seb Jeon, and Youngjoo Lee*, "Intelligent MIMO detection with momentum-induced unfolded layers," IEEE Wireless Communications Letters, vol. 13, no. 3, pp. 879-883, Mar. 2024.

  6. Seungwoo Hong, Dongyun Kam, Sangbu Yun, Jeongwon Choe, Namyoon Lee, and Youngjoo Lee*, "Low-complexity and low-latency SVC decoding architecture using modified MAP-SP algorithm," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, no. 4, pp. 1774-1787, Apr. 2022.

  7. Sangbu Yun, Byeong Yong Kong, and Youngjoo Lee*, "Area- and energy-efficient LDPC decoder using mixed-resolution check-node processing," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 69, no. 3, pp. 999-1003, Mar. 2022.

• International Conference Proceedings

  1. Jaehee Kim, Changhyeon Kim, Sangbu Yun, Dongyun Kam, Soonhyun Kwon, Yongjune Kim, and Youngjoo Lee*, "Hybrid ordered statistics decoding of short-length BCH codes for URLLC systems: Theoretical analysis and decoder implementation," IEEE International Symposium on Integrated Circuits and Systems (ISICAS, TCAS-I Special Issue), Qingdao, China, Oct. 2025.

  2. Sangbu Yun and Youngjoo Lee* "A 5.76 Gb/s 79.7 pJ/b 128×32 massive deep-learning uplink MIMO detector in 28nm CMOS technology," IEEE Asian Solid-State Circuits Conference (A-SSCC), Hiroshima, Japan, Nov. 2024.

  3. Dongyun Kam, Sangbu Yun, Jeongwon Choe, Zhengya Zhang, Namyoon Lee, and Youngjoo Lee*, "A 21.9 ns, 15.7 Gbps/mm^2 (128, 15) BOSS FEC decoder for 5G/6G URLLC applications," IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA, Feb. 2024.

  4. Sangbu Yun and Youngjoo Lee*, "Analysis of deep learning-based MIMO detectors," International Conference on ICT Convergence (ICTC), Jeju, Korea, Oct. 2023.

  5. Wonhee Lee, Jin Hyun, Seungick Choi, Sangbu Yun, Youngjoo Lee, and Nayoung Kim*, "Distinguishing pathologic gait in the elderly by using instrumented insole and deep neural networks", International Conference of the Korean Academy of Rehabilitation Medicine, Incheon, Korea, Oct. 2023.

  6. Nayoung Kim*, Seungick Choi, Sangbu Yun, Jin Hyun, Wonhee Lee, and Youngjoo Lee*, "Classification of pathological gait using smart insole and machine-learning algorithm", International Conference of the Korean Academy of Rehabilitation Medicine, Incheon, Korea, Oct. 2022.

  7. Sangbu Yun, Dongyun Kam, Jeongwon Choe, Byeong Yong Kong, and Youngjoo Lee*, "Ultra-low-latency LDPC decoding architecture using reweighted offset min-sum algorithm," IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain, Oct. 2020, pp. 1-5. 

• Domestic Papers

  1. 윤상부, 이영주*, "5G software 기지국을 위한 polar decoder 의 고속 병렬처리", 제33회 통신정보합동학술대회 (JCCI 2023), April, 2023.

  2. 윤상부, 최정원, 김석기, 김남일, 이영주*, "소프트웨어 모뎀을 위한 LDPC 부/복호기의 병렬화", 2022년도 반도체공학회 하계학술대회, July 2022.

• Patents

  1. Seokki Kim, Namil Kim, Sangbu Yun, Youngjoo Lee, Jeongwon Choe, "LDPC encoding and decoding method," Application Number: US18/396,774.

  2. 김석기, 김남일, 윤상부, 이영주, 최정원, "저밀도 패리티 체크 부복호화 방법," 출원번호: 10-2023-0191154.

Awards and Honors

• Chip Design Contest Best Poster Award, International SoC Design Conference (ISOCC), 2025.

• IDEC Congress CDC Best Design Award, 2024.

• Postechian Fellowship Diligence Award, 2022.

• IDEC Excellence Design Award, 2022.

• DB Science and Technology Leader Scholarship, 2021.