Performance Evaluation of Binary to Gray Code Converters Using Quantum Dot Cellular Automata

Quantum dot-cellular automata (QCA) are potential alternatives to the conventional complementary metal-oxide semiconductor (CMOS) technology. In this technology, structures are formed using quantum cells and their sizes are at nanoregime. In QCA architectures QCA cell is a fundamental building block which is used to build logic devices and basic gates. This paper proposes various layouts of QCA based binary to gray code converter and evaluates the performance of various implementations. To verify the functionality of the proposed device, some physical proofs are provided. The proper functionality of binary to gray code converters is checked and validate by means of computer simulations using QCADesigner tool. We presented the various design methodology for binary to gray code converter. The comparison of various implementation of binary to gray code converter designs is also given.