A Genetic Algorithm Based Logic Optimization for Majority Gate-Based QCA Circuits in Nanoelectronics

2013 ◽  
Vol 2 (3) ◽  
pp. 219-224 ◽  
Author(s):  
Arman Roohi ◽  
Babak Menbari ◽  
Ebrahim Shahbazi ◽  
Mohsen Kamrani
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Razieh Farazkish ◽  
Samira Sayedsalehi ◽  
Keivan Navi

Quantum-dot Cellular Automata (QCA) is one of the most attractive technologies for computing at nanoscale. The principle element in QCA is majority gate. In this paper, fault-tolerance properties of the majority gate is analyzed. This component is suitable for designing fault-tolerant QCA circuits. We analyze fault-tolerance properties of three-input majority gate in terms of misalignment, missing, and dislocation cells. In order to verify the functionality of the proposed component some physical proofs using kink energy (the difference in electrostatic energy between the two polarization states) and computer simulations using QCA Designer tool are provided. Our results clearly demonstrate that the redundant version of the majority gate is more robust than the standard style for this gate.


2022 ◽  
Vol 97 ◽  
pp. 107640
Author(s):  
Amit Kumar Pramanik ◽  
Dhrubajyoti Bhowmik ◽  
Jayanta Pal ◽  
Pinaki Sen ◽  
Apu Kumar Saha ◽  
...  

Author(s):  
Ghassem Khademi ◽  
Sepideh Soltani Fahraj ◽  
Mohammad Taghi Moradgholi ◽  
Monireh Houshmand

2019 ◽  
Vol 32 (4) ◽  
pp. 601-613 ◽  
Author(s):  
Zahra Taheri ◽  
Abdalhossein Rezai ◽  
Hamid Rashidi

Quantum-dot Cellular Automata (QCA) technology has become a promising and accessible candidate that can be used for digital circuits implementation at Nanoscale, but the circuit design in the QCA technology has been limited due to fabrication high-defect rate. So, this issue is an interesting research topic in the QCA circuits design. In this study, a novel 3-input Fault Tolerance (FT) Majority Gate (MG) is developed. Accordingly, an efficient 1-bit QCA full adder is developed using the developed 3-input MG. Then, a new 4-bit FT QCA Ripple Carry Adder (RCA) is developed based on the proposed 1-bit FT QCA FA. The developed circuits are implemented in the QCA Designer tool version 2.0.3. The results indicate that the developed QCA circuits provide advantages compared to other QCA circuits in terms of double and single cell missing defect, area and delay time.


Sign in / Sign up

Export Citation Format

Share Document