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Quantum-dot Cellular Automata (QCA) is a newly developed paradigm for digital design. It explains how computation can be performed using nano sized quantum dots. One of the trending application of QCA is the design of reversible logic circuits and gates. Reversible logic is a dissipation less digital logic. According to this logic digital circuitry with almost zero power dissipation can be designed...
Reversible gate has been one of the emerging research area that ensure continual process of innovation trends that explore and utilizes the resources. The reversible gate is sparked by its applications in several technologies such as low power CMOS, DNA computing, quantum computing, optical, nanotechnology etc. This paper presents the designing of reversible gate which is used for reversible operation...
Any signal processing architecture has a multiplier as its pillar. Its computational capabilities depend on the multiplier's performance. Also, low-power designs are the need of next generation processors. Reversible logic is one of the promising future low power technologies. High-speed multiplication can be achieved if the carry-propagation is faster. Digital compressors have less latency in carry-propagation...
The widely using CMOS technology implementing with irreversible logic will hit a scaling limit beyond 2020 and the major limiting factor is increased power dissipation. The irreversible logic is replaced by reversible logic to decrease the power dissipation. The devices implemented with reversible logic gates will have demand for the upcoming future computing technologies as they consumes less power...
Reversible logic gates are implemented over a high scalein the future technologies. Reversible logic is seen as a demandingfield with variegated applications like CMOS designs consumingless power. This paper proposed design of a full Adder/Subtractorcircuitry with the help of fault tolerant based Reversible logic gates. In the given paper, a full adder/subtractor is proposed with help ofMIG (Modified...
Multiple-valued logic is a promising choice for future computer technologies, which provides a set of advantages comparing to binary circuits. We have developed an adaptive genetic algorithm for ternary reversible circuits using Muthukrishnan-Stroud gates. The method for chromosomes coding, as well as a reasonable choice of algorithm parameters, allowed obtaining circuits for ternary arithmetic devices,...
Reversible logic has represented itself as a prominent technology which plays an important role in Quantum Computing. Theoretically Quantum Computers operates at high speed and consumes less power. Furthermore, Reversible logic can break the conventional speed of power trade-off. To prove this we are implementing Ripple Carry Adder and Carry Look Ahead Adder using reversible logic gates. The paper...
Multipliers are the basic building blocks of a micro-controller. The speed of the multiplier determines the performance of a micro-controller. A high speed processor depends greatly on the multiplier as it is one of the key hardware blocks in most digital signal processing systems as well as in general processors. Vedic mathematics is one such promising solution for increasing the speed of the multiplier...
Reversible logic is one of the emerging computational methodologies which assures zero power dissipation through theoretical laws of thermodynamics. It has received significant interest in application on quantum computing, nanotechnologies and low power computing devices. In this work, we present a reversible logic implementation for Binary Coded Decimal (BCD) adder which is designed to obtain lowest...
Reversible logic has emerged as a possible low cost alternative to conventional logic in terms of speed, power consumption and computing capability. An adder block is a very basic and essential component for any processor and optimized design of these adders' results in efficient processors. In this work we propose optimized Binary adders and BCD adders. The adders designed in this work are optimized...
This paper presents the design of a novel n-bit carry skip adder by its core components using quantum logic. The novelty of the proposed adder is that it considers a new design with optimal delay. Moreover, it is the first time in quantum circuit synthesis that the quantum realization of a carry skip adder is shown in terms of quantum gates, power and area, etc. Our proposed quantum multiplexer gate...
This paper explores the design of parallel multipliers for Quantum-Dot Cellular Automata. Array multipliers, Wallace multipliers, Dadda multipliers, and quasi-modular multipliers are designed and analyzed. Quasi-modular multipliers use 4 (n/2 × n/2) modules to make n × n multipliers are also considered. All of these designs are constructed using coplanar layouts. The delay, area and complexity are...
Quantum-dot cellular automata (QCA) technology is a promising alternative to CMOS technology. QCA provides a novel paradigm both for communication and computation. Meanwhile, a new challenge referred to as the “layout = timing” problem is introduced due to the unique clocking and inherent pipeline nature of “wires” in QCA. As a result, feedback is intractable in sequential circuits due to the QCA...
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