论文标题
128点多路径SC FFT体系结构
A 128-point Multi-Path SC FFT Architecture
论文作者
论文摘要
本文介绍了一种新的Radix-2^K多路径FFT架构，名为MSC FFT，该体系结构基于单个路径Radix-2串行换向器（SC）FFT体系结构。所提出的多路径体系结构具有很高的硬件利用率，可导致小芯片区域，同时提供高吞吐量。另外，采用Radix-2^K FFT算法可以进一步简化旋转器。它是通过优化处理元件（PE）的结构来实现的。实现的体系结构是使用90 nm过程的128点4-并行多路径SC FFT。它的面积和功耗分别仅为0.167 mm2和14.81兆瓦。与现有作品相比，提议的设计大大降低了芯片REA和功耗，同时提供了高吞吐量。
This paper presents a new radix-2^k multi-path FFT architecture, named MSC FFT, which is based on a single-path radix-2 serial commutator (SC) FFT architecture. The proposed multi-path architecture has a very high hardware utilization that results in a small chip area, while providing high throughput. In addition, the adoption of radix-2^k FFT algorithms allows for simplifying the rotators even further. It is achieved by optimizing the structure of the processing element (PE). The implemented architecture is a 128-point 4-parallel multi-path SC FFT using 90 nm process. Its area and power consumption at 250 MHz are only 0.167 mm2 and 14.81 mW, respectively. Compared with existing works, the proposed design reduces significantly the chip rea and the power consumption, while providing high throughput.
