| Popis: |
In this paper, an inexact 3:2 compressor has been proposed. The proposed design has been used in radix-4 based 8×8 multiplier for the addition of intermediate partial products. Error parameters have been evaluated using MATLAB and compared with reported state-of-art designs. Meanwhile, the proposed 8×8 inexact multiplier has been providing an improvement of ~12% and 27% in the Error Rate (ER) and Normalized Mean Error Distance (NMED), respectively than its best counter-part reported. The proposed inexact design and some reported designs are designed in Cadence Spectre and their performance parameters (power, delay) have been evaluated using gpdk 45nm technology. The proposed multiplier architecture provides an improvement of 5% in power and 9% in delay than the best reported state-of-art design. Moreover, for the validation of the proposed inexact 3:2 compressor-based 8×8 multiplier, image multiplication has been performed in MATLAB. Mean square error (MSE), and peak signal to noise ratio (PSNR) are estimated to show the improvement. |
