Design of 256-point FFT processor for 100 Gb/s coherent optical OFDM system

Jinkyu Kim, Joohyun Lee, Kyoungrok Cho
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引用次数: 2

Abstract

This paper presents fully parallel fast Fourier transform (FFT) processor for coherent optical OFDM system. It has a length of 256. For processing of 100 Gb/s throughput it has parallel input and output structure. FFT processor has 32 radix-16 processor with trivial multiplication and consists of an array structure in parallel arithmetic processing. We designed and implemented the proposed FFT processor using Xilinx FPGA XCVU190. The result shows 205,530 LUTs and the maximum throughput is 46.592 Giga-Samples/sec.
为 100 Gb/s 相干光 OFDM 系统设计 256 点 FFT 处理器
本文介绍了用于相干光 OFDM 系统的全并行快速傅立叶变换(FFT)处理器。它的长度为 256。为了处理 100 Gb/s 的吞吐量,它具有并行输入和输出结构。FFT 处理器有 32 个radix-16 处理器,具有琐碎的乘法运算功能,由并行算术处理中的数组结构组成。我们使用 Xilinx FPGA XCVU190 设计并实现了所提出的 FFT 处理器。结果显示有 205,530 个 LUT,最大吞吐量为 46.592 千兆采样/秒。
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