Journal Papers

International Journal Papers

2025

• [Accepted] 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.

• Jeongwon Choe and Youngjoo Lee*, "Area-efficient non-binary LDPC decoder with column-wise trellis min-max algorithm," IEEE Journal of Solid-State Circuits, vol. 60, no. 3, pp. 1082-1091, Mar. 2025.

• Hyeokjun Kwon+, Hyunhoon Lee+, Gyuhyun Jung, and Youngjoo Lee*, "Energy-efficient flexible RNS-CKKS processor for FHE-based privacy-preserving computing," IEEE Journal of Solid-State Circuits, vol. 60, no. 1, pp. 136-145, Jan. 2025. (Invited)

• 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.

• Doeun Sim, Younghoon Byun, Inseob Kim, and Youngjoo Lee*, "High-performance and low-complexity multi-touch detection for variable ground states," IEEE Sensors Journal, vol. 25, no. 2, pp. 3138-3150, Jan. 2025.

• Eunbin Park and Youngjoo Lee*, "mDARTS: Searching ML-based ECG classifiers against membership inference attacks," IEEE Journal of Biomedical and Health Informatics, vol. 29, no. 1, pp. 177-187, Jan. 2025.

2024

• Sangwoo Jung, Jaehyun Lee, Dahoon Park, Youngjoo Lee, Jong-Hyeok Yoon, and Jaeha Kung*, "A dual-precision and low-power CNN inference engine using a heterogeneous processing-in-memory architecture," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 71, no. 12, pp. 5546-5559, Dec. 2024.

• Jaehee Kim+, Sangil Han+, Dongyun Kam, Byeong Yong Kong, and Youngjoo Lee*, "A design framework for cost-efficient sorters with arbitrary input/output constraints," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 71, no. 12, pp. 5410-5419, Dec. 2024. (Invited)

• 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.

• Hyeongtaek Lee, Seungsik Moon, Youngjoo Lee, Jaeky Oh, Jaehoon Chung, and Junil Choi*, "Multi-group multicasting systems using multiple RISs," IEEE Transactions on Wireless Communications, vol. 23, no, 8, pp. 9488-9501, Aug. 2024.

• Seungsik Moon and Youngjoo Lee*, "A 43.9 μs IRS controller SoC with grid-based phase-shift optimization in 28 nm CMOS technology for next-generation communication," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 71, no. 7, pp. 3401-3412, July 2024.

• 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.

2023

• Dongwha Han, Jeonghun Park, Youngjoo Lee, H. Vincent Poor, and Namyoon Lee*, "Block orthogonal sparse superposition codes for ultra-reliable low-latency communications," IEEE Transactions on Communications, vol. 71, no. 12, pp. 6884-6897, Dec. 2023.

• Hyunhoon Lee and Youngjoo Lee*, "Optimizations of privacy-preserving DNN for low-latency inference on encrypted data," IEEE Access, vol. 11, pp. 104775-104788, 2023.

• Seungsik Moon, Namyoon Lee, and Youngjoo Lee*, "Cost-efficient GPIP processing for large-scale multi-user MIMO systems," IEEE Access, vol. 11, pp. 75325-75336, 2023.

• Seungsik Moon, Namyoon Lee, and Youngjoo Lee*, "A scalable precoding processor for large-scale MU-MIMO systems," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 70, no. 7, pp. 3029-3039, July 2023.

• Dongyun Kam, Byeong Yong Kong, and Youngjoo Lee*, "Low-latency SCL polar decoder architecture using overlapped pruning operations," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 70, no. 3, pp. 1417-1427, Mar. 2023.

• Gunho Park, Jaeha Kung, and Youngjoo Lee*, "Simplified compressor and encoder designs for low-cost approximate radix-4 Booth multiplier," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 70, no.3, pp. 1154-1158, Mar. 2023.

2022

• Sanghyeon Ju, Youngjoo Lee, and Sunggu Lee*, "Convolution neural networks with discrete cosine transform features," IEEE Transactions on Computers, vol. 71, no. 12, pp. 3389-3395, Dec. 2022.

• Jeongwon Choe and Youngjoo Lee*, "High-throughput non-binary LDPC decoder architecture using parallel EMS algorithm," IEEE Journal of Solid-State Circuits, vol. 57, no. 10, pp. 2969-2978, Oct. 2022. (Invited)

• Hyeokjun Kwon, Younghoon Byun, Seokhyeong Kang, and Youngjoo Lee*, "CHAMP: Channel merging process for cost-efficient highly-pruned CNN acceleration," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, no. 8, pp. 3308-3319, Aug. 2022.

• Changhyeon Kim, Dongyun Kam, Seokki Kim, Giyoon Park, and Youngjoo Lee*, "Simplified ordered statistic decoding for short-length linear block codes," IEEE Communications Letters, vol. 26, no. 8, pp. 1720-1724, Aug. 2022.

• Seungsik Moon, Hyeongtaek Lee, Junil Choi, and Youngjoo Lee*, "Low-complexity beamforming optimization for IRS-aided MU-MIMO wireless systems," IEEE Transactions on Vehicular Technology, vol. 71, no. 5, pp. 5587-5592, May 2022.

• 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.

• 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.

2021

• Byeong Yong Kong*, Youngjoo Lee, and Hoyoung Yoo, "On the hardware complexity of tree expansion in MIMO detection," Journal of Semiconductor Engineering, vol. 2, no. 3, pp. 136-141, Dec. 2021. 

• Gunho Park, Jaeha Kung, and Youngjoo Lee*, "Design and analysis of approximate compressors for balanced error accumulation in MAC operator," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 68, no. 7, pp. 2950-2961, July 2021.

• Hyunhoon Lee, Young-Seok Kim, Mijung Kim, and Youngjoo Lee*, "Low-cost network scheduling of 3D-CNN processing for embedded action recognition," IEEE Access, vol. 9, pp. 83901-83912, June 2021.

• Dongyun Kam, Hoyoung Yoo, and Youngjoo Lee*, "Ultra-low-latency successive cancellation polar decoding architecture using tree-level parallelism," IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 29, no. 6, pp. 1083-1094, June 2021.

• Minho Ha, Younghoon Byun, Seungsik Moon, Youngjoo Lee, and Sunggu Lee*, "Layerwise buffer voltage scaling for energy-efficient convolutional neural network," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 40, no. 1, pp. 1-10, Jan. 2021.

2020

• Junseo Jo, Jaeha Kung, and Youngjoo Lee*, "Approximate LSTM computing for energy-efficient speech recognition," MDPI Electronics, vol. 9, no. 12:2004, pp. 1-13, Nov. 2020.

• Hyunsung Kim, Jaehee Kim, Young-Seok Kim, Mijung Kim, and Youngjoo Lee*, "Energy-efficient wearable EPTS device using on-device DCNN processing for football activity classification," MDPI Sensors, vol. 20, no. 21:6004, pp. 1-15, Oct. 2020.

• Soyeon Choi, Youngjoo Lee, and Hoyoung Yoo*, "Recent successive cancellation decoding methods for polar codes," Journal of Semiconductor Engineering, vol. 1, no. 2, pp. 74-80, Sep. 2020.

• Seungsik Moon, Jeongwon Choe, and Youngjoo Lee*, "Low-latency unfolded-KES architecture for emerging storage class memories," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 6, pp. 2103-2113, June 2020.

2019

• Seungsik Moon+, Younghoon Byun+, Jongmin Park, Sunggu Lee, and Youngjoo Lee*, "Memory-reduced network stacking for edge-level CNN architecture with structured pruning," IEEE Journal on Emerging and Selected Topics in Circuits and Systems, vol. 9, no. 4, pp. 735-746, Dec. 2019. (Invited)

• Seokha Hwang, Seungsik Moon, Jaehwan Jung, Daesung Kim, In-Cheol Park, Jeongseok Ha, and Youngjoo Lee*, "Energy-efficient symmetric BC-BCH decoder architecture for mobile storages," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 66, no. 11, pp. 4462-4475, Nov. 2019.

• Kibeom Kim, Seokha Hwang, Youngjoo Lee, and Sunggu Lee*, "Approximate radix-4 Booth multiplication circuit," IEIE Journal of Semiconductor Technology and Science, vol. 19, no. 5, pp. 435-445, Oct. 2019.

• Minho Ha, Younghoon Byun, Jeonghun Kim, Jaecheol Lee, Youngjoo Lee, and Sunggu Lee*, "Selective deep convolutional neural network for low cost distorted image classification," IEEE Access, vol. 7, pp. 133030-133042, Sep. 2019.

• Seokha Hwang, Seungsik Moon, Dongyun Kam, Inn-Yeol Oh, and Youngjoo Lee*, "High-throughput and low-latency digital baseband architecture for energy-efficient wireless VR systems," MDPI Electronics, vol. 8, no. 7:815, pp. 1-13, July 2019.

• Kibeom Kim, Yongjo Jeong, Youngjoo Lee, and Sunggu Lee*, "Analysis of counting Bloom filters used for count thresholding," MDPI Electronics, vol. 8, no. 7:779, pp. 1-12, July 2019.

• Seungsik Moon, Sungsoo Park, Jae-Ho Lee, and Youngjoo Lee*, "Rapid balise telegram decoder with modified LFSR architecture for train protection systems," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 66, no. 2, pp. 272-276, Feb. 2019.

• Seungsik Moon, In-Soo Kim, Dongyun Kam, Dong-Woo Jee, Junil Choi*, and Youngjoo Lee*, "Massive MIMO systems with low-resolution ADCs: Baseband energy consumption vs. Symbol detection performance," IEEE Access, vol. 7, no. 1, pp. 6650-6660, Jan. 2019.

2018

• Youngjoo Lee, In-Cheol Park, and Hoyoung Yoo*, "Area-optimized syndrome calculation for Reed-Solomon decoder," IEIE Journal of Semiconductor Technology and Science, vol. 18, no. 5, pp. 609-615, Oct. 2018.

• Hoyoung Yoo and Youngjoo Lee*, "Energy-efficient key-equation solving algorithm for BCH decoding," IEIE Journal of Semiconductor Technology and Science, vol. 18, no. 4, pp. 518-524, Aug. 2018.

• Byeonggil Park, Jongsun Park, and Youngjoo Lee*, "Area-optimized fully-flexible BCH decoder for multiple GF dimensions," IEEE Access, vol. 6, pp. 14498-14509, Mar. 2018. 

2017

• Joonggeun Ahn, Jihoon Kim, and Youngjoo Lee*, "Sharpness-aware real-time haze removal algorithm for advanced driver assistance systems," IEIE Journal of Semiconductor Technology and Science, vol. 17, no. 6, pp. 765-770, Dec. 2017. (Invited)

• Youngjoo Lee*, Taehyoun Oh, and In-Cheol Park, “Mismatch-tolerant capacitor array structure for junction-splitting SAR analog-to-digital conversion,” IEIE Journal of Semiconductor Technology and Science, vol. 17, no. 3, pp. 388-400, June 2017.

• Meng Li, Liesbet Van der Perre, Wim Van Thillo, and Youngjoo Lee*, “Energy-efficient reconfigurable FEC processor for multi-standard wireless communication systems,” IEIE Journal of Semiconductor Technology and Science, vol. 17, no. 3, pp. 333-340, June 2017.

• Byeonggil Park, Seungyong An, Jongsun Park, and Youngjoo Lee*, “Novel folded-KES architecture for high-speed and area-efficient BCH decoders,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 64, no. 5, pp. 535-539, May 2017.

• Esther Kim, Youngjoo Lee, and Taehyoun Oh*, “A 2-8 GHz adaptive duty-cycle corrector loop with background calibration,” International Journal of Electronics, vol. 104, no. 9, pp. 1578-1588, Apr. 2017.

• Mingu Park, Kyoungho Yoo, Yunho Park, and Youngjoo Lee*, “Diagonally-reinforced lane detection scheme for high-performance advanced driver assistance systems,” IEIE Journal of Semiconductor Technology and Science, vol. 17, no. 1, pp. 79-85, Feb. 2017.

2016

• Seokha Hwang and Youngjoo Lee*, “Sharpness-aware evaluation methodology for haze-removal processing in automotive systems,” IEIE Transactions on Smart Processing and Computing, vol. 5, no. 6, pp. 390-394, Dec. 2016.

• Hoyoung Yoo, Youngjoo Lee, and In-Cheol Park*, “Low-power parallel Chien search architecture using a two-step approach,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 63, no. 3, pp. 269-273, Mar. 2016.

• Youngjoo Lee*, Jaehwan Jung, and In-Cheol Park, “Energy-scalable 4KB LDPC decoding architecture for NAND-flash-based storage systems,” IEICE Transactions on Electronics, vol. E99-C, no. 2, pp. 293-301, Feb. 2016.

• Youngjoo Lee*, Meng Li, and Liesbet Van der Perre, “Memory-reduced turbo decoding architecture using NII metric compression,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 63, no. 2, pp. 211-215, Feb. 2016.

2015

• Jaehwan Jung, Hoyoung Yoo, Youngjoo Lee, and In-Cheol Park*, “Efficient parallel architecture for linear feedback shift registers,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 62, no. 11, pp. 1068-1072, Nov. 2015.

• Hyeji Kim, Youngjoo Lee, and Ji-Hoon Kim*, “Low-complexity CRC-aided early stopping unit for parallel turbo decoder,” Electronics Letters, vol. 51, no. 21, pp. 1660-1662, Oct. 2015.

• Meng Li*, Youngjoo Lee, Yanxiang Huang, and Liesbet Van der Perre, “Area and energy efficient 802.11ad LDPC decoding processor,” Electronics Letters, vol. 51, no. 4, pp. 339-341, Feb. 2015.

• Youngjoo Lee, Bongjin Kim, Jaehwan Jung, and In-Cheol Park*, “Low-complexity tree architecture for finding the first two minima,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 62, no. 1, pp. 61-64, Jan. 2015.

2014

• Jaehwan Jung, Youngjoo Lee, and In-Cheol Park*, “Area-efficient method to approximate two minima for LDPC decoders,” Electronics Letters, vol. 50, no. 23, pp. 1701-1702, Nov. 2014.

• Youngjoo Lee and In-Cheol Park*, “Single-step glitch-free NAND-based digitally controlled delay lines using dual loops,” Electronics Letters, vol. 50, no. 13, pp. 930-932, June 2014.

• Youngjoo Lee, Hoyoung Yoo, Injae Yoo, and In-Cheol Park*, “High-throughput and low-complexity BCH decoding architecture for solid-state drives,” IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 22, no. 5, pp. 1183-1187, May 2014.

2013

• Youngjoo Lee, Hoyoung Yoo, Jaehwan Jung, Jihyuck Jo, and In-Cheol Park*, “A 2.74-pJ/bit, 17.7-Gb/s iterative concatenated-BCH decoder in 65-nm CMOS for NAND flash memory,” IEEE Journal of Solid-State Circuits, vol. 48, no. 10, pp. 2531-2540, Oct. 2013.

2011

• Youngjoo Lee, Hoyoung Yoo, and In-Cheol Park*, “Low-complexity parallel Chien search structure using two-dimensional optimization,” IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 58, no. 8, pp. 522-526, Aug. 2011.

• Hoyoung Yoo, Youngjoo Lee, and In-Cheol Park*, “Area-efficient syndrome calculation for strong BCH decoding,” Electronics Letters, vol. 47, no. 2, pp. 107-108, Jan. 2011.

2010

• Tae-Hwan Kim, Young-Joo Lee, and In-Cheol Park*, “Design of a scalable and programmable sound synthesizer,” IEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 18, no. 6, pp. 875-886, June 2010.

Domestic Journal Papers

2023

• 류은지, 이영주*, "효율적 Transformer 모델 경량화를 위한 구조화된 프루닝," 반도체공학회 논문지, vol. 1, no. 1, pp. 23-30, Oct. 2023.

2018

• 변영훈, 조준서, 이영주*, "효율적 메모리 관리를 통한 모바일 CNN 가속기의 최적화," 전자공학회지, vol. 45, no. 1, pp. 28-34, Jan. 2018.

2017

• 하민호, 이영주, 이승구*, "고효율 디지털 신호처리를 위한 근사 곱셈기 설계," 전자공학회지, vol. 44, no. 6, pp. 24-31, June 2017.

2013

• 이영주, 조지혁, 박인철*, “Core-A: 고성능 32-bit 임베디드 RISC 프로세서,” 전자공학회지, vol. 40, no. 9, pp. 34-41, Sep. 2013.