Title: Design and analysis of an energy efficient and compact two-dimensional two-dot one-electron quantum-dot cellular automata-based ripple carry adder

Authors: Kakali Datta; Debarka Mukhopadhyay; Paramartha Dutta

Addresses: Department of Computer and System Sciences, Visva-Bharati University, Santiniketan, West Bengal, PIN-731235, India ' Department of Computer Science and Engineering, Amity School of Engineering and Technology, Amity University, Kolkata, West Bengal, PIN-700156, India ' Department of Computer and System Sciences, Visva-Bharati University, Santiniketan, West Bengal, PIN-731235, India

Abstract: Quantum-dot cellular automata (QCA) is a post-CMOS upcoming technology in the nanotechnology domain. Design of different QCA-based circuits is on the top agenda of research community to overcome the limitations of CMOS counterpart in respect of off-state leakage current, energy and power efficiency, and minimum dimension requirement of fabrication. Accordingly, in the present scope, we are trying to explore a design and analysis of a two-dot one-electron QCA-based circuit for ripple carry adder. In course of our detailed description of our article, we have tried to justify the effectiveness of the QCA-based circuit in comparison to CMOS-based counterpart. Our analysis includes derivation of energy and power requirement for such a two-dimensional two-dot one-electron QCA circuit-related issues. Moreover, it will be evident that the proposed architecture is compact if the cells used are square in shape.

Keywords: quantum dot cellular automata; QCA; Coulomb's principle; full adders; circuit design; ripple carry adders; quantum dots; energy efficiency; nanotechnology.

DOI: 10.1504/IJCONVC.2016.082034

International Journal of Convergence Computing, 2016 Vol.2 No.2, pp.161 - 182

Received: 22 Feb 2016
Accepted: 05 Nov 2016
Published online: 01 Feb 2017 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article