A Novel Efficient CNFET-Based Inexact Full Adder Design for Image Processing Applications
| Autor: | Mehdi Bagherizadeh, Yavar Safaei Mehrabani, Mona Parsapour, Mona Moradi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Motion detector
Adder Materials science Arithmetic circuits 020208 electrical & electronic engineering Bioengineering Image processing 02 engineering and technology Condensed Matter Physics 020202 computer hardware & architecture Computer Science Applications Reduction (complexity) Power consumption 0202 electrical engineering electronic engineering information engineering Electronic engineering General Materials Science Electrical and Electronic Engineering Biotechnology |
| Zdroj: | International Journal of Nanoscience. 20:2150016 |
| ISSN: | 1793-5350 0219-581X |
| DOI: | 10.1142/s0219581x21500162 |
| Popis: | Employing inexact arithmetic circuits in error-resilient applications results in reduction of hardware-level metrics such as power consumption, delay and occupied area. These criteria are very important in portable applications because they are battery limited. Full Adder cell is as a building block of many arithmetic circuits. Therefore, it can influence the performance of the entire digital system. This paper presents a novel low-power and high-speed design of one-bit inexact full adder cell based on 32-nm (CNFET) technology for error resilient applications. This design technique can be utilized in various applications particularly in image processing. The presented design employs capacitive threshold logic (CTL) approach which significantly reduces the number of transistors. The peak signal-to-noise ratio (PSNR) is considered to evaluate accuracy of circuits at application level. Then extensive simulations regarding various power supplies, temperatures and loads at transistor level are performed to measure power consumption and propagation delay criteria. Moreover, some new metrics are introduced to trade-off between application and hardware level parameters. Comprehensive simulations demonstrate the supremacy of the proposed cell than others. |
| Databáze: | OpenAIRE |
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