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HARLD: A RISC-V Based Tightly Coupled Heterogeneous Computing Architecture for Low-Density Parity Check Decoding

文献类型：期刊论文

作者Wang, Bing2; Ma, Zi-Rui1,3; Wu, Hai-Bin1; Zhang, Fu-Lin1,3; Yue Wang, Yue Wang1,3; Fan, Zhi-Hua1,3; Li, Wen-Ming1,3; Ye, Xiao-Chun1,3; Fan, Dong-Rui1,3
刊名JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
出版日期2026-01-21
页码17
关键词tightly coupled heterogeneous computing architecture low-density parity check (LDPC) decoding RISC-V extension
ISSN号1000-9000
DOI10.1007/s11390-025-5052-5
英文摘要Low-density parity check (LDPC) decoding is an efficient error correction method in communication systems, especially in 5G networks, which require high performance and low latency; while common generalpurpose architectures cannot meet the requirements. There has been some research on accelerating LDPC decoding, but the current methods still suffer from limitations in performance, flexibility, and communication cost. In this paper, we propose HARLD (Heterogeneous Architecture of RISC-V for LDPC Decoding), a tightly coupled heterogeneous computing architecture based on extended RISC-V for LDPC decoding, consisting of a CPU and a processing array. Compared with a loosely coupled System-on-Chip (SoC)-bus baseline, the tightly coupled design improves throughput by up to 32.4% and reduces average latency by up to 24.7% across evaluated configurations, while also enhancing resource and energy efficiency: processing element utilization up to 93.5%, instruction RAM utilization increased by up to 4.8x, and energy efficiency improved by up to 24.8%. At the system level, area and power are reduced by 17.6% and 10.2%, respectively, versus the loosely coupled design.
资助项目National Key Research and Development Program of China[2022YFB4501400] ; Institute of Computing Technology, Chinese Academy of Sciences-China Mobile Communications Group Co., Ltd. Joint Institute ; Beijing Nova Program[20220484054] ; Beijing Nova Program[20230484420] ; Beijing Natural Science Foundation[L234078] ; State Key Laboratory of Processors (SKLP) Foundation[CLQD202502]
WOS研究方向Computer Science
语种英语
WOS记录号WOS:001666429900001
出版者SPRINGER SINGAPORE PTE LTD
源URL[http://119.78.100.204/handle/2XEOYT63/42881]  
专题中国科学院计算技术研究所
通讯作者Wu, Hai-Bin
作者单位1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing 100190, Peoples R China
2.China Mobile Res Inst, Beijing 100053, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Bing,Ma, Zi-Rui,Wu, Hai-Bin,et al. HARLD: A RISC-V Based Tightly Coupled Heterogeneous Computing Architecture for Low-Density Parity Check Decoding[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2026:17.
APA Wang, Bing.,Ma, Zi-Rui.,Wu, Hai-Bin.,Zhang, Fu-Lin.,Yue Wang, Yue Wang.,...&Fan, Dong-Rui.(2026).HARLD: A RISC-V Based Tightly Coupled Heterogeneous Computing Architecture for Low-Density Parity Check Decoding.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,17.
MLA Wang, Bing,et al."HARLD: A RISC-V Based Tightly Coupled Heterogeneous Computing Architecture for Low-Density Parity Check Decoding".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY (2026):17.

入库方式： OAI收割

来源：计算技术研究所

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