A Review on QCA Multiplexer Designs

Majlesi Journal of Electrical Engineering

مقاله 8، دوره 11، شماره 2، شهریور 2017   

نوع مقاله: Review Article

نویسندگان

Mohsen Yoosefi Nejad^{* 1}؛ Mohammad Mosleh²

¹Department of Computer Engineering, and Information Technology, Payame Noor University, Iran

²Department of Computer Engineering, Dezful Branch, Islamic Azad University, Dezful, Iran

چکیده

Quantum-dot Cellular Automata (QCA), is a contemporary nanotechnology for manufacturing logical circuits which brings less power consumption, smaller circuit size, and faster operation. In this technology, logical gates are composed of nano-scale basic components called cells. Each cell consists of four quantum-dot arranged in a square pattern. Diagonal arrangement of two extra electrons resembles two logical states 0 and 1. Majority gate and inverter gate are considered as the two most fundamental building blocks of QCA. The effect of cells on their neighbor cells enables designing more diverse circuits. Multiplexer is a key component in most computer circuits. Researchers have presented various QCA designs for multiplexers since the introduction of QCA. In this research all presented designs are simulated in QCA Designer Version 2.0.3 and investigated from different aspects such as number of cells, size, types of components used in circuit, number of layers, and number of cycles for producing output.

کلیدواژه‌ها

QCA؛ en؛ Mltiplexer؛ MUX؛ Quantum-dot cellular Automata؛ Majority gate؛ Simulation؛ Digital Circuit

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