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A Survey on LUT-based Deep Neural Networks Implemented in FPGAs

Published: June 9, 2025 | arXiv ID: 2506.07367v1

By: Zeyu Guo

Potential Business Impact:

Makes smart devices run AI faster and cheaper.

Business Areas:
Field-Programmable Gate Array (FPGA) Hardware

Low-latency, energy-efficient deep neural networks (DNNs) inference are critical for edge applications, where traditional cloud-based deployment suffers from high latency and security risks. Field-Programmable Gate Arrays (FPGAs) offer a compelling solution, balancing reconfigurability, power efficiency, and real-time performance. However, conventional FPGA-based DNNs rely heavily on digital signal processing (DSP) blocks for multiply-accumulate (MAC) operations, limiting scalability. LUT-based DNNs address this challenge by fully leveraging FPGA lookup tables (LUTs) for computation, improving resource utilization and reducing inference latency. This survey provides a comprehensive review of LUT-based DNN architectures, including their evolution, design methodologies, and performance trade-offs, while outlining promising directions for future research.

Page Count
16 pages

Category
Computer Science:
Hardware Architecture