Abstract:
This paper presents a configurable FFT/IFFT processor oriented to Multiple Input Multiple Output(MIMO) Orthogonal Frequency Division Multiplexing(OFDM). It gives the pipelined architecture, introduces one data reordering module to deal with 4 multiple data sequences, with different rate. Performance analysis shows that the processor is designed in SMIC 0.13 μm technology with the core size of 1.800×1.500 μm2.
Key words:
Fast Fourier Transform(FFT),
pipeline architecture,
Multiple Input Multiple Output(MIMO),
Orthogonal Frequency Division Multiplexing(OFDM)
摘要: 面向多输入多输出(MIMO)正交频分复用(OFDM)系统,设计一种可配置的FFT/IFFT运算处理器。给出多通路流水线FFT/IFFT处理器架构,通过一个输入数据重排模块,实现来自4条信道的多通路数据同时计算,支持不同数据率的FFT/IFFT运算。性能分析表明,在SMIC 0.13 μm工艺下,该处理器的最高时钟频率可达125 MHz,面积达到1.800×1.500 μm2。
关键词:
快速傅里叶变换,
流水线结构,
多输入多输出,
正交频分复用
CLC Number:
LI Shi-Meng, CHEN Bin, CENG Xiao-Xiang. FFT/IFFT Processor for MIMO-OFDM[J]. Computer Engineering, 2012, 38(2): 248-249.
李斯梦, 陈赟, 曾晓洋. MIMO-OFDM的FFT/IFFT处理器[J]. 计算机工程, 2012, 38(2): 248-249.