A1 Journal article (refereed)
Design and simulation of QCA-based 3-bit binary to gray and vice versa code converter in reversible and non-reversible mode (2022)

Safaiezadeh, B., Mahdipour, E., Haghparast, M., Sayedsalehi, S., & Hosseinzadeh, M. (2022). Design and simulation of QCA-based 3-bit binary to gray and vice versa code converter in reversible and non-reversible mode. Optik, 251, Article 168464. https://doi.org/10.1016/j.ijleo.2021.168464

JYU authors or editors

Publication details

All authors or editorsSafaiezadeh, Behrouz; Mahdipour, Ebrahim; Haghparast, Majid; Sayedsalehi, Samira; Hosseinzadeh, Mehdi

Journal or seriesOptik



Publication year2022


Article number168464


Publication countryGermany

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/79147


The current Very Large-Scale Integration (VLSI) technology has reached its peak due to the fundamental physical limits of Complementary Metal-Oxide-Semiconductor (CMOS). Quantum-dot Cellular Automata (QCA) is considered a proper alternative to CMOS technology in digital circuit design. QCA has features like low power, small area, and high speed in nanoscale digital circuit design. A code converter is a circuit that converts a determined code to another one. Code converters such as Binary to Gray, Gray to Binary, and Binary to BCD converters have a crucial role in fast signal processing in digital systems. Also, code converters are used as a base unit for data transmission into the Arithmetic Logic Unit (ALU) to perform processes. A Binary-to-Gray converter converts the input data to a Gray number. In this paper, we propose a 3-bit Binary to Gray and vice versa code converter in QCA. Previous proposed designs could only convert Binary to Gray code or vice versa, but the proposed design convert both B2G and G2B codes into a circuit. We design our circuit in both reversible and non-reversible modes. The simulation of the proposed design is done using the QCADesigner 2.0.3 tools. The simulation results show that the proposed design is superior to the existing designs in terms of evaluation parameters such as cell count, area, latency, and quantum cost.

Keywordsquantum computingquantum computerscellular automatalogic programming

Free keywordsQuantum computing; quantum-dot cellular automata; reversible logic; binary to gray; gray to binary

Contributing organizations

Ministry reportingYes

Reporting Year2022

JUFO rating1

Last updated on 2024-15-06 at 22:46