A novel quantum dot cellular automata for 4-bit code converters

Rao, Nandini G.; Srikanth, P.; Sharan, Preeta

doi:10.1016/j.ijleo.2015.12.119

Cited by 29 publications

(11 citation statements)

References 5 publications

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“…Besides comparing the previous works in [19][20][21][22], the occupied area 90.24 %, 88.24 %, 55.56 % and 77.78 % have been reduced. The work is better than [19] because our proposed structure has no crossover. In our work, the clock cycle latency is 0.50 which is better than [19] and [20].…”

Section: Non-reversible 4-bit Binary To 4-bit Gray Code Convertermentioning

confidence: 67%

“…By comparing the previous works in [19] and [20], our proposed circuit has 37 cells which have improved 70.87 % and 80.73 %. Besides comparing the previous works in [19][20][21][22], the occupied area 90.24 %, 88.24 %, 55.56 % and 77.78 % have been reduced. The work is better than [19] because our proposed structure has no crossover.…”

Section: Non-reversible 4-bit Binary To 4-bit Gray Code Convertermentioning

confidence: 91%

“…The work is better than [19] because our proposed structure has no crossover. In our work, the clock cycle latency is 0.50 which is better than [19] and [20].…”

Section: Non-reversible 4-bit Binary To 4-bit Gray Code Convertermentioning

confidence: 98%

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A new efficient non-reversible 4 bit binary to gray and 4 bit gray to binary converter in QCA

Islam¹,

Jahan²,

Bahar³

et al. 2018

Nanosystems: Phys. Chem. Math.

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The present Very Large Scale Integration (VLSI) technology is based on Complementary Metal-oxide-Semiconductor (CMOS) technology. The development of the VLSI technology has reached its peak due to the fundamental physical limits of CMOS technology. The recent challenges, as well as the physical limitation of the traditional CMOS technology, has overcome by the Quantum-dot Cellular Automata (QCA) which is first introduced by C. S. Lent. The nanoscale size quantum cell is a feature of QCA technology. In this paper, we propose a new QCA structure for 4-bit binary to 4-bit gray and 4-bit gray to 4-bit binary using two input XOR gate. These structures are designed and simulated with QCA designer and compared with previous structure.

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Section: Non-reversible 4-bit Binary To 4-bit Gray Code Convertermentioning

confidence: 67%

Section: Non-reversible 4-bit Binary To 4-bit Gray Code Convertermentioning

confidence: 91%

See 1 more Smart Citation

A new efficient non-reversible 4 bit binary to gray and 4 bit gray to binary converter in QCA

Islam¹,

Jahan²,

Bahar³

et al. 2018

Nanosystems: Phys. Chem. Math.

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show abstract

“…The performance of modern processors is decided by the speed, area, and power consumption of adders and subtractor. Hence, the design of a robust universal circuit in QCA technology is basic necessity for a high performance ALU [6][7].…”

Section: Universal Computational Circuit (Adder Cum Subtractor)mentioning

confidence: 99%

Performance Analysis of a Universal Circuit for Reversible ALU using QCA & CMOS Technology

Tiwari¹,

Kumar²,

Shara³

2018

IJET

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The reversible logic and gates are one of the promising and upcoming technologies which are capable of overcoming the limitations of the design and applications based on the CMOS technology. In this technology, the schematic arrangement of the device is implemented in such a way that every input terminal has been provided with individual output terminals. The author has used the technology which is based on quantum computations with a basic feature of loss of energy in small amount. It has many advantages like very high operating speed, low energy dissipation, and high device density. An adder/subtractor is heart of arithmetic units of processors i.e. acts as universal circuit for carrying out the mathematical computations in the quantum processors. The author has put forward a novel reversible adder/subtractor circuit using reversible logic & QCA. The QCA based circuit reported by the author has been compared and analyzed for the performance on the basis of number of gates, size, delay, power dissipation etc. The experimental work has been completed with the use of the most suitable and reliable software i.e. QCA and the performance of the proposed circuit has proven to be quite useful for this circuit to be used in some promising applications. These results are also compared with those obtained with the use of CMOS Technologies.

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“…Few papers have dealt the design of digital code converters in the QCA domain. In [7], an XOR gate is introduced and based on that, a digital code converter circuit is designed. In this paper, a gray code to binary converter and vice versa have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Parity generator and digital code converter in QCA nanotechnology

Khakpour

Gholami

Naghizadeh³

2019

Int Nano Lett

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In this paper, new structures for digital code converter circuits in quantum dot cellular automata (QCA) technology are presented. The basic structure of most of these circuits is the XOR gate, which is widely used in digital design. Therefore, in the proposed, the XOR gate will be presented which will be better than previous circuits in terms of cell number and delay. Then, using the proposed circuits for the XOR gate, new circuits for generating parity bit, Binary to Gray, Gray to binary and BCD to gray code converter are introduced. Proposal designs have an efficient implementation in terms of complexity. The proposed structures are simulated using the QCAdesigner tool to evaluate the correct performance. The proposed final circuit as a digital code converter has improved by 37% in terms of cell consumption and 25% in speed.

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A novel quantum dot cellular automata for 4-bit code converters

Cited by 29 publications

References 5 publications

A new efficient non-reversible 4 bit binary to gray and 4 bit gray to binary converter in QCA

A new efficient non-reversible 4 bit binary to gray and 4 bit gray to binary converter in QCA

Performance Analysis of a Universal Circuit for Reversible ALU using QCA & CMOS Technology

Parity generator and digital code converter in QCA nanotechnology

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