Design and Implementation of Advanced Re-Configurable Quantum-Dot Cellular Automata-Based (Q-DCA) n-Bit Barrel-Shifter Using Multilayer 8:1 MUX with Reversibility

Novel advanced low power high speed quantum-dot cellular automata (Q-DCA) nano-technique is utilized in this work to form a multilayer 3D 8:1 multiplexer-based 8-bit barrel-shifter and check the reversibility of the used component. A clear parametric investigation is shown that the proposed 8-bit barrel-shifter can optimize the occupied area, delay (switching delay and propagation delay), complexity, power dissipation and cost in multilayer 3D Q-DCA platform compare to recently used advanced transistor-level technology-based structure, and the used novel structure of multilayer 3D 8:1 multiplexer is more advanced to reduce the required area, 2 types of delay (switching delay and propagation delay), complexity, cost and dissipated power compare to recent existing single-layer Q-DCA-based structures. The temperature tolerance with layer separation gap reduction effect of the proposed multilayer Q-DCA structures is also discussed clearly in this research paper, where QCADesigner 4.0 is used to design and simulate the layouts of the proposed digital components to calculate all the selected parameters.