Bonfring International Journal of Power Systems and Integrated Circuits

Online ISSN: 2277-5072 | Print ISSN: 2250-1088 | Frequency: 4 Issues/Year

Impact Factor: 0.651 | International Scientific Indexing(ISI) calculate based on International Citation Report(ICR)

Efficient Design of a Hybrid Adder Using Quantum-Dot Cellular Automata

P. Vijayalakshmi and N. Kirthika

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Abstract:

The saying goes that if you can count, you can control. Addition is a fundamental operation for any digital system, digital signal processing or a control system. A fast and accurate operation of a digital system is greatly influenced by the performance of resident adders. In this regard, an efficient hybrid adder that combines a carry select adder and a ripple carry adder using QCA technology is designed to meet all the needs that is indispensable for a digital circuitry. QCA is an emerging nanotechnology, with the potential for higher speed, smaller size, and lower power consumption than transistor-based technology. Recent development in nano electronics provides a good introduction to the quantum mechanics of electrons, notions of free and confined electrons. Hence, with the help of QCA technology, the proposed hybrid adder produces a lesser area-delay product when compared to the previous adders and this proposed adder is also applied to a Wallace tree multiplier, here the area-delay product is reduced and speed of the multiplier is augmented.

Keywords: Hybrid Adder, QCA-Quantum-Dot Cellular Automat, Nano Electronics

Volume: 2 | Issue: Special Issue on Communication Technology Interventions for Rural and Social Development

Pages: 105-109

Issue Date: February , 2012