Title: Design and analysis of majority logic-based multipliers in perpendicular nanomagnetic logic

Authors: Abhishek Ajith; Cheekoti Sanath Kumar; R. Marimuthu; S. Balamurugan

Addresses: Department of Instrumentation, School of Electrical Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India ' Department of Instrumentation, School of Electrical Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India ' Department of Instrumentation, School of Electrical Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India ' Department of Instrumentation, School of Electrical Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632014, India

Abstract: In the process of finding an alternative for CMOS technology, various new technologies have emerged with emphasis on reducing the power consumption. Amongst the various technologies, nanomagnetic logic (NML) serves as a favourable replacement. Nanomagnetic logic is a new computing paradigms for the beyond CMOS technology that uses both memory and logic elements between nanomagnets using field-coupled technology. This paper explores the approximate computing concept in nanomagnetic logic. Approximate computing is an emerging computing paradigm where we can trades-off the power with accuracy. We have put forward two approximate 8-bit Dadda multipliers that have been designed using two different 5:2 approximate compressors using majority-based logic. The effectiveness and efficiency of these multipliers are evaluated using image processing algorithms and comparison with other approximate multipliers.

Keywords: compressor; approximate; Dadda multiplier; nanomagnetic logic; NML; multiplier; image processing.

DOI: 10.1504/IJMPT.2020.108489

International Journal of Materials and Product Technology, 2020 Vol.60 No.1, pp.40 - 57

Accepted: 23 Feb 2020
Published online: 07 Jul 2020 *

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