A Review on Reversible Logic Gates and its QCA Implementation

Abdullah-Al-Shafi, Md.; Islam, Shifatul; Bahar, Ali Newaz

doi:10.5120/ijca2015906434

Cited by 32 publications

(19 citation statements)

References 26 publications

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“…From Table 1 it is clear that our presented QCA layouts are better than all the previous works with a considerable superiority. For example, 50% increase in computation speed is achieved compared to the fastest previous Toffoli Gate [21]. Our Toffoli Gate has more than 1.7 times smaller area compared to the previous Toffoli Gate [20].…”

Section: Resultsmentioning

confidence: 99%

“…Also, in comparison to the 3-bit binary to Grey converter presented in [30], our design is faster and it has 95% improvement in the area and 60.9% improvement in the cells count. [19] 0.100 99 4 Without wire-crossing Peres [21] 0.18 117 3 Without wire-crossing Peres [22] 0.075 97 4 Without wire-crossing Fredkin [7] 0.07 79 3 Without wire-crossing Fredkin [10] 0.273 231 4 Coplanar Fredkin [11] 0.19 187 9…”

Section: Resultsmentioning

confidence: 99%

“…Also, these optimized QCA reversible Gates are used to achieve the design of QCA 4-Bit reversible parity checker and 3-bit reversible binary to Grey converter. Plenty of the QCA-based designs of reversible logic Gates and circuits have been reported previously by the researchers [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. In [6] some optimized scalable reversible logic Gates have been designed in the QCA technology and compared with conventional CMOS technology.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New efficient designs of reversible logic gates and circuits in the QCA technology

Rezaei

2019

Eng. rev. (Online)

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Quantum-dot cellular automata (QCA) is a developing nanotechnology, which seems to be a good candidate to replace the conventional complementary metal-oxide-semiconductor (CMOS) technology. The QCA has the advantages of very low power dissipation, faster switching speed, and extremely low circuit area, which can be used in designing nanoscale reversible circuits. In this paper, the new efficient QCA implementations of the basic reversible Gates such as: CNOT, Toffoli, Feynman, Double Feynman, Fredkin, Peres, MCL, and R Gates are presented based on the straight interactions between the QCA cells. Also, the designs of 4-Bit reversible parity checker and 3-bit reversible binary to Grey converter are introduced using these optimized reversible Gates. The proposed layouts are designed and simulated using QCADesigner software. In comparison with previous QCA designs, the proposed layouts are implemented with the minimum area, minimum number of cells, and minimum delay without any wire-crossing techniques. Also, in comparison with the CMOS technology, the proposed layouts are more efficient in terms of the area and power. Therefore, our designs can be used to realize quantum computation in ultralow power computer communication.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New efficient designs of reversible logic gates and circuits in the QCA technology

Rezaei

2019

Eng. rev. (Online)

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“…By using cell polarization P = + 1.00 to represent logic "1" and P = -1.00 to represent logic "0", binary data is encoded in the charge composition of the QCA cell [7,8]. A number of QCA combinational [1,5,[9][10][11][12][13][14][15][16][17][18][19][20][21][22], sequential [23][24][25][26][27][28][29][30][31][32] and reversible logic [33][34][35][36][37][38][39][40] circuit have been proposed in recent years based on two cell inverters and three input majority voter elements [10,17,41,42]. Elemental structures for QCA are the inverter and the majority gate.…”

Section: Fundamental Of Qcamentioning

confidence: 99%

Implementation of Binary to Gray Code Converters in Quantum Dot Cellular Automata

Islam

Abdullah-Al-Shafi

Bahar

2015

JOTITT

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Quantum dot cellular automaton (QCA) are dominant nanotechnology which has been used extensively in digital circuits and systems. It is a promising alternative to complementary metal-oxide-semiconductor (CMOS) technology with many enticing features such as high-speed, low power consumption and higher switching frequency than transistor based technology. The code converters are the basic unit for transformation of data to execute arithmetic processes. In this paper, QCA based 2-bit binary-togray; 3-bit binary-to-gray and 4-bit binary-to-gray code converter have been proposed. The proposed design reduces the number of cells, area and raises switching speed. The simulations are completed using QCADesigner and Microwindlite tool which is widely used for simulation and verification.

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“…A number of QCA based circuits have been presented based on inverter, majority voter and QCA wires. Divers reversible circuits as well as combinational and sequential circuits have been suggested so far [7][8][9][10][11][12][13][14][15][16][17]. This paper, an efficient and potent design of fredkin gate is proposed that is Three input majority voter (Maj 3 ) is the basic logic gate in QCA.…”

Section: Introductionmentioning

confidence: 99%