Reversible code converters in QCA nanotechnology

Riyaz, Sadat; Rabeet, Mir Nashit; Sharma, Vijay Kumar

doi:10.1016/j.matpr.2022.03.446

Cited by 8 publications

(1 citation statement)

References 12 publications

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“…2 is depicting a QCA wire. The length of the wire is decided by the number of QCA cells in a QCA design [7,8]. A complex QCA circuit requires passing the wires from different locations.…”

Section: Introductionmentioning

confidence: 99%

Parity Generators for Nanocommunication Systems Using QCA Nanotechnology

Sharma

2023

Period. Polytech. Elec. Eng. Comp. Sci.

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Quantum-dot cellular automata (QCA) nanotechnology has the capability to design highly-dense, ultra-low power, and high-speed digital circuits at ultra-deep sub-micron (ultra-DSM) level. QCA nanostructure provides a transistor-free operation that saves large energy dissipation as compared to the conventional metal oxide semiconductor field effect transistor (MOSFET) technology. In this paper, 3-input exclusive-OR (XOR) and exclusive-NOR (XNOR) gates are presented using QCA cells. XOR and XNOR (XOR-XNOR) gates are further utilized to design the 2-, 3-, 4-, and 5-bit even and odd parity generators. The QCA-based 3-input XNOR gate is constructed using only 10 QCA cells and two clock phases. The target of the presented designs is to use the minimum count of QCA cells in a simplistic way to form the higher bit-size parity generators. The comparative analyses for the different performance metrics are showing that the developed designs are performing well for the cell count, latency, area, and layout cost as compared to the existing designs. Energy dissipation for the designs is calculated to check the energy efficiency by using the QCA Designer-E and QCA Pro tools.

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“…2 is depicting a QCA wire. The length of the wire is decided by the number of QCA cells in a QCA design [7,8]. A complex QCA circuit requires passing the wires from different locations.…”

Section: Introductionmentioning

confidence: 99%

Parity Generators for Nanocommunication Systems Using QCA Nanotechnology

Sharma

2023

Period. Polytech. Elec. Eng. Comp. Sci.

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Novel high-performance QCA Fredkin gate and designing scalable QCA binary to gray and vice versa

2022

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In the design of digital logic circuits, QCA technology is an excellent alternative to CMOS technology. Its advantages over CMOS include low power consumption, fast circuit switching, and nanoscale design. Circuits that convert data between different formats are code converters. Code converters have an essential role in high-performance computing and signal processing. In this paper, first, we proposed a novel QCA structure for the quantum reversible Fredkin gate. Second, we proposed 4-bit and 8-bit QCA binary-to-gray converter and vice versa. For the second proposal, both reversible and irreversible structures are suggested. The proposed structures are scalable up to N bits. To change the conversion type from B2G to G2B, we use a 2:1 QCA multiplexer. The proposed QCA Fredkin is applied in the reversible design of QCA code converters as multiplexers. The suggested designs are simulated using the QCADesigner tool. Then we calculated figures of merit, including cell counts, occupied areas, and clock zones. Finally, we compare the proposed structures to existing research. Our proposed approach is the first quantum-dot cellular automata design to perform B2G conversion and G2B in a single QCA circuit. The proposed designs are scalable. Specifications are reported.

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Structure for Demultiplexer in QCA Technology for Nanocommunication Systems

Sharma

2022

2022 International Conference on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME)

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Reversible code converters in QCA nanotechnology

Cited by 8 publications

References 12 publications

Parity Generators for Nanocommunication Systems Using QCA Nanotechnology

Parity Generators for Nanocommunication Systems Using QCA Nanotechnology

Novel high-performance QCA Fredkin gate and designing scalable QCA binary to gray and vice versa

Structure for Demultiplexer in QCA Technology for Nanocommunication Systems

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