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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

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Published on: September 8, 2023

Pseudo random bit generator in QCA for high speed communications.

Pezhman Kiani Vosta¹, Mohammad Gholami²

¹Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran.

|November 25, 2024

Summary

This study presents novel Quantum-dot Cellular Automata (QCA) designs for D flip-flops and Linear Feedback Shift Registers (LFSRs). These optimized circuits offer reduced cell count and area for efficient nanoelectronic applications.

Keywords:

LFSR QCA Quantum-dot cellular automata Random bit generator

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Area of Science:

Nanoelectronics
Quantum Computing
Digital Circuit Design

Background:

Quantum-dot Cellular Automata (QCA) offers low power and small area for digital circuits.
Existing QCA designs for essential components like flip-flops and LFSRs can be further optimized.

Purpose of the Study:

To design and implement an optimal D flip-flop using QCA technology.
To develop new, area-efficient four- and eight-bit Linear Feedback Shift Registers (LFSRs) based on the proposed D flip-flop.

Main Methods:

Design of a D flip-flop utilizing 24 cells.
Implementation of a four-bit LFSR using 144 cells.
Development of an eight-bit LFSR with 281 cells.
Simulations conducted using QCADesigner and QCAPro for energy analysis.

Main Results:

The proposed D flip-flop is highly optimal in terms of cell count and area.
The four-bit LFSR design is presented in its most optimal state.
The eight-bit LFSR is implemented for the first time in QCA technology, demonstrating superior design characteristics.

Conclusions:

The developed QCA-based D flip-flop and LFSRs represent significant advancements in nanoelectronic circuit design.
These designs achieve minimal cell count and area, paving the way for more efficient digital systems.