Quantum-dot Cellular Automata circuits using an efficient design and performance analysis

A Quantum-dot Cellular Automata (QCA) has become replacement to CMOS -VLSI technology in digital circuit design at nanoscale. Extremely low power consumption, high speed (in the range of THz), inherent pipeline, the high packing density of devices are a few of its essential features so that it has gained significant interest in the recent history. Construction of fault-tolerant circuits with a QCA basis is more essential to reduce the reliability issues. This study addresses first of all novel designs of XOR gates, RUG, F2G, and full adder. Based upon QCA technology. Then, the fault-tolerant QCA basis full adder is implemented by using the proposed designs. Proposed circuits demonstrate substantial progress respecting to generic parameter QCA circuit's design of when compared to the earlier implementations. Dissipation values of energy for every implemented circuits of QCA are determined using a precise QCA Pro power analysis tool. Using the QCA Designer edition 2.0.3 tool, the functioning of the developed circuits are tested.