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Facta universitatis - series: Electronics and Energetics 2018 Volume 31, Issue 2, Pages: 279-285
https://doi.org/10.2298/FUEE1802279M
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Design of novel efficient full adder architecture for Quantum-dot Cellular Automata technology

Mokhtari Dariush (ACECR Institute of Higher Education, Isfahan Branch, Isfahan, Iran)
Rezai Abdalhossein (ACECR Institute of Higher Education, Isfahan Branch, Isfahan, Iran)
Rashidi Hamid (ACECR Institute of Higher Education, Isfahan Branch, Isfahan, Iran)
Rabiei Faranak (Universiti Putra Malaysia, Institute for Mathematical Research, Malaysia)
Emadi Saeid (IPE Manager School, France)
Karimi Asghar (ACECR Institute of Higher Education, Isfahan Branch, Isfahan, Iran)

In this paper the novel coplanar circuits for full adder implementation in Quantum-dot Cellular Automata (QCA) technology are presented. We propose a novel one-bit full adder circuit and then utilize this new circuit to implement novel four-bit Ripple Carry Adder (RCA) circuit in the QCA technology. The QCA Designer tool version 2.0.1 is utilized to implement the designed QCA full adder circuits. The implementation results show that the designed QCA full adder circuits have an improvement compared to other QCA full adder circuits.

Keywords: Full adder, quantum-dot cellular automata, coplanar circuit, ripple carry adder, high-performance design