Modular design of QCA carry flow adders and multiplier with reduced wire crossing and number of logic gates

Zhang, Yongqiang; Lv, Hongjun; Du, Huakun; Huang, Cheng-Jen; Liu, Shuai; Xie, Guangjun

doi:10.1002/cta.2163

Cited by 20 publications

(4 citation statements)

References 17 publications

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“…Designs Area (µm 2 ) Cells Latency Cho and Swartzlander [19] 0.493 406 1 Zhang, et al [20] 0.299 329 1 Zhang, et al [20] 0.319 330 1.25 Edrisi Arani and Rezai [12] 0.27 264 1.75 Bahar and Wahid [9] 0.…”

Section: Table 2 Comparisons Of Multiplier Circuitsmentioning

confidence: 99%

Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder

2024

Informacije MIDEM

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Quantum dot cellular automata (QCA) is one of the newest nanotechnologies. The conventional complementary metal oxide semiconductor (CMOS) technology was superbly replaced by QCA technology. This method uses logic states to identify the positions of individual electrons rather than defining voltage levels. A wide range of optimization factors, including reduced power consumption, quick transitions, and an extraordinarily dense structure, are covered by QCA technology. On the other hand, the serial-parallel multiplier (SPM) circuit is an important circuit by itself, and it is also very important in the design of larger circuits. This paper defines an optimized circuit of SPM circuit using QCA. It can integrate serial and parallel processing benefits altogether to increase efficiency and decrease computation time. Thus, all these mentioned advantages make this multiplier framework a crucial element in numerous applications, including complex arithmetic computations and signal processing. This research presents a new QCA-based SPM circuit to optimize the multiplier circuit's performance and enhance the overall design. The proposed framework is an amalgamation of highly performance architecture with efficient path planning. Other than that, the proposed QCAbased SPM circuit is based on the majority gate and 1-bit serial adder (BSA). BCA circuit has 34 cells and a 0.04 μm 2 area and uses 0.5 clock cycles. The outcomes showed the suggested QCA-based SPM circuit occupies a mere 0.28 µm² area, requires 222 QCA cells, and demonstrates a latency of 1.25 clock cycles. This work contributes to the existing literature on QCA technology, also emphasizing its capabilities in advancing VLSI circuit layout via optimized performance.Ključne besede: množilnik, serijsko-vzporendo, binaren množilnik, nano, komunikacije na osnovi QCA Kvantno vezje zaporedno-paralelnega množilnika z uporabo učinkovitega zaporednega seštevalnika v nano merilu PovzetekKvantni točkovni celični avtomati (QCA) so ena od najnovejših nanotehnologij. Tradicionalno tehnologijo komplementarnih kovinsko oksidnih polprevodnikov (CMOS) je odlično nadomestila tehnologija QCA. Ta metoda uporablja logična stanja za določanje položajev posameznih elektronov in ne definira napetostnih nivojev. Tehnologija QCA pokriva številne optimizacijske dejavnike, vključno z manjšo porabo energije, hitrimi prehodi in izredno gosto strukturo. Po drugi strani pa je vezje serijsko-paralelnega množilnika (SPM) samo po sebi pomembno vezje, zelo pomembno pa je tudi pri načrtovanju večjih vezij. Članek opredeljuje optimizirano vezje SPM z uporabo QCA. V njem lahko združimo prednosti serijske in vzporedne obdelave ter tako povečamo učinkovitost in skrajšamo čas računanja. Zaradi vseh omenjenih prednosti je torej to seštevalno ogrodje ključni element v številnih aplikacijah, vključno s kompleksnimi aritmetičnimi izračuni in obdelavo signalov. V tej raziskavi je predstavljeno novo vezje SPM, ki temelji na QCA, za optimizacijo učinkovitosti vezja množitelja in izboljšanje celotne zasnove. Pred...

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Section: Table 2 Comparisons Of Multiplier Circuitsmentioning

confidence: 99%

Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder

2024

Informacije MIDEM

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“…Each TQCA cell contains 8 potential wells and 2 electrons, so it can be considered as a two‐particle system. [ 5,19,10 ]…”

Section: Computation In Qcamentioning

confidence: 99%

“…Therefore, some nanotechnology‐based alternatives, such as FinFET, CNTFET, and quantum cellular automata (QCA), have been proposed. [ 1–6 ] In the present research, a quinary cell is presented, and then, a method is proposed to calculate and implement n levels so that QCA cells can be used to implement fuzzy logic. To date, QCA cells have been presented as binary, ternary, and quaternary cells.…”

Section: Introductionmentioning

confidence: 99%

Innovation Quinary and n‐Value toward Fuzzy Logic QCA Cell Design

Akbari‐Hasanjani

Sabbaghi‐Nadooshan

2021

Advcd Theory and Sims

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Quantum Cellular automata (QCA) is a technology developed to replace complementary metal‐oxide‐semiconductor (CMOS) technology that faces increasing challenges due to the miniaturization of CMOS dimensions. The use of multi‐valued QCA is of interest because of its proximity to fuzzy logic, and lower power consumption. A two‐layer quinary system is proposed and the basic logic gates are examined and simulated to confirm the correct performance of the proposed cell. The proposed cell employs two layers because the presence of more than two particles per layer destabilizes the design of logic gates. The proposed Quinary QCA(QuQCA) cell can be implemented in one layer using input and output derives. Simple relationships are proposed to calculate the polarization values and the number and type of layers, so complex quantum computations can be avoided. The quantum power consumption and the proposed cell power consumption of the quinary system are calculated and compared. Finally, we present n‐valued cells without using quantum computation, and these cells are examined in terms of the number of particles, polarization value, and cell structure. The n‐level cell can be investigated more easily than other technologies due to its proximity to fuzzy logic and the design of the input, output, and fuzzy membership function.

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“…Information is reassigned via columbic exchanges between the fundamental elements (cells) instead of electrical current . Up to now, extensive attempts has been made on the design of various digital circuits such as multipliers, adders, multiplexers, and memories in QCA technology, but according to a study in Bahar et al, the high complexity of nanocircuit structures results in the need to design high fault‐tolerant structures. QCA technology encounters challenges like many defects that were first described in previous works .…”

Section: Introductionmentioning

confidence: 99%

Robust QCA full‐adders using an efficient fault‐tolerant five‐input majority gate

Ahmadpour

Mosleh

Heikalabad

2019

Circuit Theory & Apps

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Quantum-dot cellular automata (QCA) is considered as a top candidate for nanoscale technologies with unique features such as very low occupancy and ultralow power consumption. Despite the potential benefits of QCA technology over CMOS technology, QCA circuits are highly prone to defects. Therefore, a demand has risen in designing fault-tolerant circuits. In this research, a novel fault-tolerant five-input majority gate is first suggested, and then it is evaluated by implementing a variety of faults such as cell omission, cell displacement, and extra-cell deposition. The evaluation results reveal that the proposed structure is 100%, 51.85%, and 18.8% fault-tolerant under extra-cell deposition, single-cell omission, and double-cell omission, respectively. Moreover, two single-layer and coplanar fault-tolerant QCA full-adders are offered using the suggested fault-tolerant structure. The stability of the presented single-layer full-adder has also been investigated under single and double cell omission defects. The evaluation outcomes show that the suggested fault-tolerant single-layer full-adder has a high stability in Sum and C out outputs compared with other full-adders. In order to validate the functionality of the suggested fault-tolerant five-input majority gate, a number of physical investigations are given. The QCADesigner 2.0.3 software has been used to evaluate the simulation results.KEYWORDS five-input majority gate, circuit design, fault-tolerant, full-adders, nanotechnology, quantum-dot cellular automata (QCA)

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Modular design of QCA carry flow adders and multiplier with reduced wire crossing and number of logic gates

Cited by 20 publications

References 17 publications

Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder

Quantum-based serial-parallel multiplier circuit using an efficient nano-scale serial adder

Innovation Quinary and n‐Value toward Fuzzy Logic QCA Cell Design

Robust QCA full‐adders using an efficient fault‐tolerant five‐input majority gate

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