Design and Functional Verification of 4 Bit Arbiter in Quantum Dot Cellular Automata

Abstract

Reduction in the size of a device gains much attention nowadays. But the process of reducing the same gets more complicated. QCA is getting expedited to do the task. Because Quantum Dot Cellular Automata is dealing with the movement of electrons in a quantum cell, it is already like a partially done job. Various aspects of 2 and 3 input arbiters are discussed. A new 4 input arbiter design is introduced and verified by combining the QCA concepts which includes the basic elements Majority Gates and an inverter. This novel 4 Bit arbiter can be a fundamental block for multiple resources sharing networks with a reduced size and delay.