Results 91 to 100 of about 231 (137)

Comparative analysis of code converter using Quantum Dot Cellular Automata (QCA)

2016 IEEE 7th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON), 2016
Quantum dot Cellular Automata (QCA) is an advancement of Nanotechnology based design that offers faster switching speed, lower power and appreciable reduction of size compare to conventional CMOS logic based technology. In this article, a 4-bit Binary to Gray Converter has been represented with minimal cell usage compared to previous designs.
Ratna Chakrabarty, Ambika Saha, Srinidhi Adhikary, Sayantika Das, Jayeeta Tarafder, Tulika Das, Subhojoy Dey   +6 more
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Power gain in a quantum-dot cellular automata (QCA) shift register

Proceedings of the 2001 1st IEEE Conference on Nanotechnology. IEEE-NANO 2001 (Cat. No.01EX516), 2002
Discusses an experiment that demonstrates power gain in a quantum-dot cellular automata (QCA) shift register. Power gain is essential in any electronic system for the restoration of logic levels. The clock signal plays an important role in providing power gain in QCA devices as it can be used as a source of energy for the system.
R.K. Kummamuru, A. Orlov, G. Toth, J. Timler, R. Rajagopal, C.S. Lent, G.H. Bernstein, G.L. Snider   +7 more
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Scalability of Globally Asynchronous QCA (Quantum-Dot Cellular Automata) Adder Design

Journal of Electronic Testing, 2008
The concept of clocking for QCA, referred to as the four-phase clocking, is widely used. However, inherited characteristics of QCA, such as the way to hold state, the way to synchronize data flows, and the way to power QCA cells, make the design of QCA circuits quite different from VLSI and introduce a variety of new design challenges.
Myungsu Choi, Minsu Choi
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Efficient and Robust Delay-Insensitive QCA (Quantum-Dot Cellular Automata) Design

2006 21st IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems, 2006
The concept of clocking for QCA, referred to as the four-phase clocking, is widely used. However, inherited characteristics of QCA, such as the way to hold state, the way to synchronize data flows, and the way to power QCA cells, make the design of QCA circuits quite different from VLSI and introduce a variety of new design challenges.
Minsu Choi, Myungsu Choi, Zachary Patitz, Nohpill Park   +3 more
openaire   +1 more source

Efficient Simulation of Correlated Dynamics in Quantum-Dot Cellular Automata (QCA)

IEEE Transactions on Nanotechnology, 2014
Many simulations of quantum-dot cellular automata (QCA) rely upon the so-called intercellular Hartree approximation (ICHA), which neglects the possibility of entanglement between cells. While the ICHA is useful for solving many QCA circuits due to its relative simplicity and computational efficiency, its many shortcomings make it prohibitive in ...
Faizal Karim, Konrad Walus
openaire   +1 more source

A novel universal (FNZ) gate in quantum dot cellular automata (QCA)

IMPACT-2013, 2013
As transistor geometries are reduced, quantum effects begin to dominate device performance. At some point, transistors cease to have the properties that make them useful computational components. New computing elements must be developed in order to keep pace with Moore's Law.
F. A. Khanday, N. A. Kant, Z. A. Bangi, N. A. Shah   +3 more
openaire   +1 more source

Systematic Review on Full-Subtractor Using Quantum-Dot Cellular Automata (QCA)

2020
In earlier days, we used a CMOS-based subtractors; these are having lower specifications in terms of power dissipation, switching speed, and area. In this era, we are having nanotechnology which is of range 10−9, to reduce the overall specifications of the circuit.
Sri Sai Surya, A. Arun Kumar Gudivada, Durgesh Nandan   +2 more
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Simple 4-Bit Processor Based On Quantum-Dot Cellular Automata (QCA)

2005 IEEE International Conference on Application-Specific Systems, Architecture Processors (ASAP'05), 2006
We describe the design and layout of a simple 4-bit processor based on quantum dot cellular automata (QCA) using the QCADesigner design tool. The processor design is based on an accumulator architecture which reduces the required hardware complexity and allows for reasonable simulation times.
K. Walus, null Mazur, G. Schulhof, G.A. Jullien   +3 more
openaire   +1 more source

Fault modeling and mapping for quantum-dot cellular automata (QCA) designs

2013 2nd International Conference on Advances in Electrical Engineering (ICAEE), 2013
This paper addresses the issue of fault modeling and mapping between a design done at the CMOS gate-level and one done using QCA technology. Since QCA and CMOS gate-level defects differ completely, it is important to investigate the mapping between classical single stuck-at fault (SSF) modeling and QCA defect and failure modes.
Shabab F. Alam, Waleed K. Al-Assadi, Pragadesh Varadharajan   +2 more
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Design of Master Slave flip flop in Quantum Dot Cellular Automata (QCA)

2020 4th International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), 2020
Quantum Dot Cellular Automata or QCA is one of the promising quantum computational platforms in the field of nanotechnology to overcome the constraints of transistor based CMOS circuits. In this paper Master Slave flip-flop has been designed using SR flip-flop in the field of quantum dot cellular automata which is normally used in digital circuit to ...
Ratna Chakrabarty, Niranjan Kumar Mandal
openaire   +1 more source