High-speed end-to-edge data caching and forwarding architecture based on field programmable gate array

• Published in: ETRI Journal
• Main Authors: Xiao Liu, Shubo Liu, Juncheng Wu, Song Song, Zhaohui Cai, Guoqing Tu
• Format: Article
• Language: English
• Published: Electronics and Telecommunications Research Institute (ETRI) 2025-10-01
• Subjects: data caching; data forwarding; end-to-edge data; fpga; high-speed data
• ISSN: 1225-6463; 2233-7326

The application of the Internet of Things generates massive end-device data.Traditional end-to-edge data caching methods lack parallelism, consumenumerous resources, and lack data backup mechanisms. We propose a light-weight high-speed data caching and forwarding architecture based on a field-programmable gate array. In the basic scheme, a double-data-rate memoryread/write mixed control method is proposed to efficiently cache massiveamounts of data. To improve reliability, we propose address-space virtualiza-tion to forward data to backup devices. To satisfy the demand for higher per-formance scenarios, we propose a real-time data shunting mechanism torealize an optimized scheme that supports higher data rates. These twoschemes support single-link high-speed data caching and forwarding at 10 and40 Gbps. Compared with the existing method, the basic and optimizedschemes improve the performance by 25% and four times and save 66% and40% of the resources, respectively. Thus, we provide a lightweight and reliablehigh-performance end-to-edge data caching solution for resource-constrainededge devices.