Abstract
Communication at nano-scale provides high operational speed and low power consumption. Quantum-dot Cellular Automata (QCA) is used to create nano-scale digital logic circuits. It can replace CMOS technology in nano-scale due to the latter reaching its physical limit. Designing communication networks at nano-scale minimizes cost and energy dissipation. This study presents a QCA based crossbar switch and banyan network. The paper proposes the banyan network in single layer structure with energy and cost analysis. The work aims to minimize the cells, area, latency and energy dissipation in the banyan network. The proposed 2x2 crossbar switch has improvement of 55.44% in terms of cell count, and 93.12% in cost function compared to reference network. The designed 4x4 banyan network has a reduction of 54.18% in terms of cell count w.r.t. the reference networks. The networks are realized in the CAD tool QCA Designer 2.0.3 and energy analysis is performed in QCA Designer-E.
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