Design and Area Evaluation of Multiply-and-Accumulate Unit using QCA

Abstract

For upcoming digital systems, quantum-dot cellular automata (QCA), an emerging nanoscale platform, is expected to provide a potent substitute for the conventional CMOS technology. It is especially appropriate for advanced signal processing applications because of its benefits that include ultra-low power consumption, nano-scopic device dimensions, and the ability to work at very high frequencies, i.e., the high-speed switching characteristic of the technology. The proposed design uses QCA technology to create an energy-efficient MAC unit with a focus on reducing circuit area and power dissipation. QCADesigner version 2.0.3 is used in the design and verification of the suggested architecture to guaranty proper logical functionality. The circuit performance is analyzed under various temperature settings to further assess its practical applicability, showing steady and dependable functioning. The QCAPro tool is used to analyze power consumption, and as per the results the designs uses 50 microwatts of total power. It can be illustrated that a significant gain in power efficiency of around 60% is found, when compared to traditional CMOS-based MAC units, proving its potential for low-power applications. A fundamental computational component of digital signal processing (DSP), the Multiply-Accumulate (MAC) unit serves as the foundation for several real-time processes, including digital filtering, video compression, and voice analysis.