Design and implementation of an efficient multilayer, Multibit Barrel-Shifter using QCA with reversibility and stability

Abstract

In the present digital Nano-electronic era, the Quantum cell-based QCA (“Quantum-dot cellular automata”) technical platform is a suitable alternative to the transistor-level-based C.MOS-Technologies (Complementary metal oxide semiconductor technology).In this paper, the QCA technology is used to design multilayer, 3D, multi-bit (up to 8bit is selected) quantum low powered, high speed, optimum cost-effective Barrel Shifter. In the proposed Barrel-Shifter design, the reversibility is properly checked by using 2:1 MUX, and response analysis is also discussed appropriately. Along with this, the presented structures in this paper are compared with existing advanced related works and these comparisons are mainly based on an occupied unit area, area-based power consumption, latency, complexity, and cost. Additionally, the stability checking of the proposed multilayer Barrel-Shifter structure (in terms of output-polarization) is also included in this work based on the temperature tolerance and layer separation gap.