Quantum CA data distributor with low energy dissipation and high output polarization for reliable information transmission in nano network router
Jun‐Cheol Jeon · Results in Engineering · 2026
To meet the demands of ultra-miniaturized network communication devices, nano-scale routing systems utilizing Quantum Dot Cellular Automata (QCA) instead of conventional CMOS technology are attracting attention. In such nano-communication, the DeMux is an essential circuit, and various types of QCA-based DeMux circuits are being designed. In this study, we aim to design a more efficient QCA-based DeMux using a multilayer structure. We propose 3-layer and 5-layer 1:2 DeMux and extend them to 1:4 DeMux. The proposed antisymmetric structure is designed to minimize energy consumption and enhance output polarization by separating the operating and output sections, and its excellent performance has been proven through simulation. The proposed 3-layer 1:2 DeMux and 1:4 DeMux structures showed design cost reductions of at least 109 % and 223 %, respectively, compared to existing state-of-the-art structures, and the 5-layer 1:4 DeMux structure also showed a design cost reduction of 109 %. The well-modularized 1-to-4 DeMux maintains a nearly symmetrical structure with only 40 cells and demonstrates excellent scalability. In addition, the proposed circuit showed a high improvement rate of at least 3.5 %, and its stable output polarization characteristics are highly effective for the expansion and application of nano-communication circuits and contribute to reliable information transmission.