An Area and Power Efficient FFT Processor for UWB Systems

摘要：

This paper presents a novel 128-point Fast Fourier Transform (FFT) processor for practical Ultra-wideband (UWB) applications. The pipeline FFT processor based on the proposed non-Cooley-Tukey radix-8 unit can provide high throughput rate and has low hardware complexity. The radix-8 units hardware cost can save up to 20％ compared with Radix-2 Single path Delay Feedback (R2SDF) architecture. Furthermore, both the input and output are in nature order. A 128-point FFT processor has been designed and implemented with SMIC 0.18μm CMOS process based on the proposed architecture. The throughput rate of proposed FFT processor is up to 409.6 Msample/s, which can meet the specification of UWB systems.

关键词： FFT UWB OFDM

作者: Shushan Qiao Yong Hei Bin Wu Yumei Zhou

作者单位: Institute of Microelectronics of Chinese Academy of Sciences Beijing, China

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）