An Effective Design of 2 : 1 Multiplexer and 1 : 2 Demultiplexer using 3-dot QCA Architecture

Das, Badhan; Mahmood, Mou; Rabeya, Maksuda; Bardhan, Rajon

doi:10.1109/icrest.2019.8644353

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The tQCA cell has two electrons that can provide the polarization {−2 0 0 2}, and the bQCA cell has another two electrons and four potential wells. However, the bQCA cell can also include a single particle as used in [14]- [19]. Because four potential wells exist in the bQCA cell of the QQCA cell, the second electron is considered for cell stability.…”

Section: Qqcamentioning

confidence: 99%

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Toward Quaternary QCA: Novel Majority and XOR Fuzzy Gates

2022

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As an emerging nanotechnology, quantum-dot cellular automata (QCA) has been considered an alternative to CMOS technology that suffers from problems such as leakage current. Moreover, QCA is suitable for multi-valued logic due to the simplicity of implementing fuzzy logic in a way much easier than CMOS technology. This paper uses a quaternary cell with two isolated layers because of requiring three particles to design this quaternary cell. Moreover, due to the instability of the basic gates, the three particles cannot be placed in one layer. The first layer of the proposed two-layer cell includes a ternary cell and the second one includes a binary cell. It is assumed that the overall polarization of the quaternary QCA (QQCA) cell is determined as the combined polarization of the two layers. The proposed QQCA cell can also be implemented in one layer. Simulations of the QQCA cell are performed based on analytical calculations. Moreover, a majority fuzzy gate, an XOR fuzzy gate, and a crossbar structure are simulated.

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Section: Qqcamentioning

confidence: 99%

“…The first designed binary QCA (bQCA) model contained four potential wells and two electrons [9]- [13]. The second electron in a bQCA cell stabilizes the cell [14]- [19]. The first multiple-valued logic (MVL) design in QCA was the ternary QCA, which consisted of eight potential wells and two electrons [1]- [3], [20]- [27].…”

Section: Introductionmentioning

confidence: 99%

Toward Quaternary QCA: Novel Majority and XOR Fuzzy Gates

2022

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“…A one to two demultiplexers have been designed with the utilisation of three‐dot QCA architecture by Das et al. [26]. In this work, the primary gates' schematisation with three‐dot QCA is shown and used for schematising the demultiplexer circuit.…”

Section: Related Workmentioning

confidence: 99%

An effective nano design of demultiplexer architecture based on coplanar quantum‐dot cellular automata

Afrooz

Navimipour

2021

IET Circuits, Devices & Syst

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Quantum‐dot cellular automata (QCA) are prospective nanotechnology with striking performance to tackle the shortcomings of complementary metal‐oxide‐semiconductor (CMOS) transistor‐based technology such as fabrication dimensions and switching speed. The demultiplexer, as a crucial component for the design of many logic circuits, comprises a circuit for separating the multiplex data into the component data. The demultiplexer is highly utilised in the communication system for building serial data lines to parallel ones. So, its efficient schematisation has turned to an issue that has captured the concentration of the investigation group. Therefore, a novel structure of QCA‐based one to two demultiplexers is proposed, and it is employed to design one to four demultiplexers. QCAdesigner software, as a powerful layout and tool for simulation, is utilised for evaluating the validity and practicality of the proposed structures. The detailed evaluation of proposed layouts shows excellent performance than prior operations, and notable developments regarding the occupied area, cell count, and latency.

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“…In any digital systems, one of the essential digital circuits is multiplexer that selects one of the 2 n input lines using n selector bits and transmits the selected input into the output . This ability makes it usable in each system such as a communication line; 2 to 1 is the simplest multiplexer and is utilized as a module to extend to 2 n to 1 multiplexer.…”

Section: Proposed Designmentioning

confidence: 99%

“…It enables a system to select one of the analogs or digital input signals and forward it to the output line . Efficient QCA‐based multiplexer design has been gotten the attention of the research community as a useful component for the design of many important logic circuits . Therefore, designing well‐optimized and high‐speed multiplexer causes the higher performance of digital systems.…”

Section: Introductionmentioning

confidence: 99%