Design and Implementation of 4:1 Multiplexer for Reversible ALU Using QCA
Rajinder Tiwari, Anil Kumar, Preeta Sharan · 2018
The simulation tool which is quite common in use for the design and implementation of the digital circuits is QCA i.e. Quantum Dot Cellular Automata. This software enables the designer to study the behavior of the charge carriers in cells at very root level. Due to this approach of the root level features of QCA, the circuit elements overall performance gets enhanced with an optimization in the characteristics of the system. This technique of the quantum computing provides advances in the characterization of the devices which eliminates the limitation of the VLSI technology i.e. minimal impact of the heat generation by the components due to heat dissipation. In the today's era of the upcoming technology of the quantum computing, tremendous works has been carried out in the reverse logic domain that enhances the overall of the quantum processors with an innovative design of the ALU in terms of the size, delay and cost. In this paper, the author has presented the design of a 4:1 multiplexer which enhances the overall computational capabilities of ALU. In this discussion, the author ha put the emphasis on the size, delay and accuracy of the multiplexer. The simulation of the 4:1 MUX been carried out with the help of QCA tool that provides an highly optimized parameters for the circuit with a better characteristics in terms of size, speed and delay.