Modeling and Logic Synthesis of Multifunctional and Universal 3 × 3 Reversible Gate for Nanoscale Applications

Int J Numerical Modelling

Kakkar

2022

Self Cite

In recent times, logic circuit designing with quantum‐dot cellular automata (QCA) technology is being comprehensively researched because of its inherent miniature size, ultra‐high speed, low power dissipation, and better switching frequency in the nanoregime. In this paper, QCA implementation of a 3 × 3 SSG‐1 reversible gate is first proposed. This gate is then used to design a reversible full adder, reversible 1‐bit comparator, and reversible 4:2 compressor. To evaluate the performance of the proposed QCA designs, an in‐depth comparison with existing designs has been performed. It is seen that the proposed SSG‐1 gate is efficient from the existing designs which eventually leads to efficient designs of adders, comparator, and compressor digital circuits. To further validate this, these digital circuits have also been compared with the literature and performance improvement is clearly observed in these circuits. In addition to this, energy dissipation analysis of all proposed logic gates and digital circuits is also performed for different kink energy levels using the QCA Pro tool and their respective energy dissipation maps are also obtained. Based on this, it is seen that the proposed designs are cost‐efficient and dissipate less energy which makes them more appropriate for designing higher‐order lower power circuits.

Section: Gate Size Gatementioning

confidence: 99%

Design of SSG‐1 gate‐based cost‐efficient reversible digital circuits using quantum‐dot cellular automata technology

Bhat

Int J Numerical Modelling

Kakkar

2022

Self Cite

“…Because the energy dissipation during state transition and propagation in QCA is negligible [4][5][6], there is significantly minimal energy dissipation when compared to CMOS technology. QCA is thoroughly investigated, and many logics are being proposed for diverse purposes, including reversible logic [6][7][8][9], arithmetic circuits [4,5,[10][11][12][13][14][15][16], code converters [17][18][19][20][21], sequential circuits [17,[22][23][24][25], memories [26][27][28][29], and so on.…”

Section: Introductionmentioning

confidence: 99%

Quantum dot Cellular Automata based Fault Tolerant Fingerprint Authentication Systems using Reversible Logic Gates

Gazi University Journal of Science

Naz

Sharma

2022

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“…Over the last decade it has been exhaustively used to design various digital logics such as adders and subtractors [7][8][9][10][11], sequential circuits [12][13][14][15], reversible logic [11,[16][17][18][19][20][21], memories [22][23][24][25][26], code converters [27][28][29][30][31] and image processing [32][33][34][35]. A new optimized design of D flip flop in QCA is first presented which is then used to design 2-, 3-, 4-and 8-bits shift registers which are scalable up to N-bits.…”

Section: Introductionmentioning

confidence: 99%

Design of efficient N‐bit shift register using optimized D flip flop in quantum dot cellular automata technology

Yaqoob

IET Quantum Communication

Naz

et al. 2021

Self Cite

There is a need for secure and powerful nano communication systems with ultra-low power consumption in the new digital age. Quantum-dot cellular automata (QCA) is a technology which can be used for designing these systems. In the nano regime, relative to complementary metal oxide semiconductor technology, QCA is able to work with greater speed and lower power dissipation along with high density. This study examines the applicability and viability of using QCA to construct the sequential circuits. An optimized D flip flop is designed in QCA. The fault tolerance for single cell omission and single cell addition defects of the proposed flip flop is also presented. This flip flop is then used to design 2-, 3-, 4-and 8-bit shift registers which can be efficiently scaled up to N-bits. The operations of all proposed designs are validated using QCADesigner tool and the energy dissipation analysis is done using QCAPro tool. The performance comparison shows that the proposed QCA designs are cost efficient and they can be utilized efficiently in designing digital communication systems which require small area along with high speed and ultra-low power consumption.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.