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Original Article

JJCIT. 2021; 7(1): 51-63

C-Element Design in Quantum Dot Cellular Automata

Mutaz Al-Tarawneh, Ziyad Altarawneh.


The continuous market demands for high performance and energy-efficient computing systems has steered the computational paradigm and technolo- gies towards nano-scale quantum dot cellular automata (QCA). This paper presents novel majority-based and complex QCA-based C-element structures. The proposed structures were thoroughly analyzed based on key design pa- rameters such as area, energy dissipation and robustness against structural defects. Simulation results demonstrate that the proposed majority-based structures outperform the complex ones in terms of their area and energy dissipation while the complex structures have shown a profound immunity against structural defects.

Key words: QCA, Asynchronous circuits, C-Element, Robustness, Structural defects

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