Mutual Module Based Parameterization Approach for Dwt and Fft Algorithm

In Embedded and wireless communication systems, the use of DWT (Discrete Wavelet Transform) and FFT (Fast Fourier Transform) algorithms based modules has been significant. Of late, in a system if various module designs for distinct algorithms exist then the parameterization/reconfiguration techniques are becoming an effective implementation idea of research. And so, in this paper, parameterization technique is approached which takes advantage of the mutual modules present in the two distinct algorithms popularly used in the Embedded and wireless communication systems applications. Significance of this paper is to introduce a mutual module for the lifting DWT and FFT butterfly such that it contributes to reduction in area and power consumption. The advantage of this mutual module implementation in the parameterization approach is that the achieved power consumption is 253mW at 100MHz and the area required is 242 slices. Therefore, the power reduction for 8point FFT and 9/7DWT system under test is almost 40 % and for the same system under test the area reduced is 48%.