A creative concept for designing and simulating quaternary logic gates in quantum-dot cellular automata

作     者：Alireza NAVIDI Reza SABBAGHI-NADOOSHAN Massoud DOUSTI Alireza NAVIDI;Reza SABBAGHI-NADOOSHAN;Massoud DOUSTI

作者机构：Department of Electrical and Computer EngineeringScience and Research BranchIslamic Azad UniversityTehran***Iran Department of Electrical EngineeringCentral Tehran BranchIslamic Azad UniversityTehran***Iran 

出 版 物：《Frontiers of Information Technology & Electronic Engineering》 (信息与电子工程前沿（英文版）)

年 卷 期：2021年第22卷第11期

页      面：1541-1550页

核心收录：

学科分类：08[工学] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Quantum-dot cellular automata(QCA) Quaternary logic QCASim Quaternary QCA(QQCA) Quaternary decoder Quaternary gates 

摘      要：New technologies such as quantum-dot cellular automata(QCA) have been showing some remarkable characteristics that standard complementary-metal-oxide semiconductor(CMOS) in deep sub-micron cannot afford. Modeling systems and designing multiple-valued logic gates with QCA have advantages that facilitate the design of complicated logic circuits. In this paper, we propose a novel creative concept for quaternary QCA(QQCA). The concept has been set in QCASim, the new simulator developed by our team exclusively for QCAs’ quaternary mode. Proposed basic quaternary logic gates such as MIN, MAX, and different types of inverters(SQI, PQI, NQI, and IQI) have been designed and verified by QCASim. This study will exemplify how fast and accurately QCASim works by its handy set of CAD tools. A 1×4 decoder is presented using our proposed main *** points such as the minimum delay, area, and complexity have been achieved in this work. QQCA main logic gates are compared with quaternary gates based on carbon nanotube field-effect transistor(CNFET). The results show that the proposed design is more efficient in terms of latency and energy consumption.