Abstracto

Data Aware Low Power High Throughput Modified Radix FFT Processor for WPAN Applications

R. Sakthivel and M. Vanitha*

This paper presents a high-speed low-complexity modified radix 25-512-point Fast Fourier transform (FFT) processor with an input of eight samples taken in pipelined approach for high rate wireless personal area network applications. The main advantage of using this method is to reduce the number of complex multiplications and the size of the twiddle factor memory. The proposed architecture has been implemented in 180 nm CMOS technology with a supply voltage of 1.8v. The results demonstrate that total number of cells used is 9937 occupying a core area of 265337.251 um2.