Introducing an optimal QCA crossbar switch for baseline network

Crossbar switch is the basic component in multi-stage interconnection networks. Therefore, this study was conducted to investigate performance of a crossbar switch with two multiplexers. The presented crossbar switch was simulated using quantum-dot cellular automata (QCA) technology and QCA Designer software, and was studied and optimized in terms of cell number, occupied area, number of clocks, and energy consumption. Using the provided crossbar switch, the baseline network was designed to be optimal in terms of cell number and occupied area. Also, the number of input states was investigated and simulated to verify accuracy of the baseline network. The proposed crossbar switch uses 62 QCA cells and the occupied area by the switch is equal to 0.06?m2 and its latency equals 4 clock zones, which is more efficient than the other designs. In this paper, using the presented crossbar switch, the baseline network was designed with 1713 cells, and occupied area of 2.89?m2.

Design of Coplanar Circuit Switching Network in Quantum Dot Cellular Automata

Quantum dot Cellular Automata (QCA) is the alternative technology to the classic CMOS technology since it is going to attain a road block in reducing power consumption and increase speed of the digital circuits. Circuit switching network is the basic component in order to transmit input signal among the different users within the communication network. A novel crossbar switch is proposed in this paper to design this communication network. The basic building blocks of the proposed circuit Switching network are Crossbar switch, Multiplexer and Demultiplexer. Multilayer QCA cells are almost impossible when compared to the fabrication feasibility of the single layer design. So this design is achieved in single layer.Circuit switching network is designed and compared with existing one using QCA Designer2.0.3.The designs are verified through matching up with truth tables.