Nanocommunication network design using QCA reversible crossbar switch

Abstract

Crossbar switch is an essential component in communication network like telephony and circuit switching network to process information. This paper deals with the design of reversible 2×2 crossbar switch and its realization in Quantum-Dot Cellular Automata (QCA) for the first time. The proposed switch is applied to a nanocommunication circuit and its impact on information processing is observed and explored. Several parameters like logic gates, density and latency are considered to evaluate the design which confirms faster operating speed and high device density. Proposed reversible QCA circuits are compared with similar traditional circuits in terms of circuit cost. The comparison outlines that the proposed QCA circuits are cost efficient than that of similar traditional circuits. The estimation of power dissipation shows that the proposed crossbar switch has very low power dissipation suitable for reversible computing. The stuck-at-fault effect on the crossbar switch and nanocommunication circuit is also explored.