An Efficient Design of Fault Tolerant Reversible Multiplexer Using QCA Technology
Mary Swarna Latha Gade, S. Rooban · 2020
Quantum-dot Cellular Automata (QCA) is a modern nano-level based technology that is considered a replacement for the traditional CMOS technology due to its significant improvements in designing electronic circuits. In the construction of many electronic digital circuits, a multiplexer (MUX) is an essential block. This paper suggests, designs, and then compares an area-efficient fault-tolerant QCA reversible 2:1 MUX with the best existing architectures. The circuit has designed with a Fredkin gate and this is a parity preservation gate of 3: 3 size. Quantum Computing Architectural Design (QCAD) Designer tool evaluates the functional accuracy of the proposed structure. QCAD Pro is used to investigate the energy dissipation of the suggested MUX. Further, the consequence of temperature effect on maximum polarization and power consumption is analyzed. The results obtained are evidence that progress of 67% in QCA cell count, 66% in cell size, 68% in total area, and 68% in quantum cost as compared to existing approaches.