Improving the Designs of ESOP-Based Reversible Circuits

Abstract

Finding ways to transform traditional circuits to energy efficient designs have found immense interest in present day’s design industry and the quest of attaining low power consuming design techniques breeds the concept of reversible circuit design. One such computing paradigm that enforces reversibility in design architecture is quantum computation. Since a couple of years, several researches are going to make the reversible designs improved further and one such way of making reversible circuit efficient is to reduce the cost of the design. Aiming to build cost-efficient architectures, here in the work, we develop an improved synthesis approach for reversible circuit. The synthesis process has two phases. In the first phase, we present a best neighbour based circuit design scheme, where the functional outputs share the common data with their immediate neighbors and form shared designs. In the next phase, a circuit optimization algorithm runs and the circuits generated in previous phase pass through it for possible improvements in the design. The developed technique has been tested over different benchmark functions and the experiments show that the synthesis process followed by the optimization scheme substantially improves the design cost. To this extent, a comparative study with related existing techniques is undertaken and a brief analysis over the design approach is summarized at the end of the work.