Design and analysis of odd- and even-parity generators and checkers using Quantum-dot Cellular Automata (QCA)

Quantum-dot Cellular Automata (QCA) is an emerging technology for nano-scale computing. There is an ever increasing demand for reliable data transmission over telecommunication networking systems. The researchers are focusing on developing nano-devices that can detect/check errors during information communication. In this paper novel 3-bit odd- and even-parity generators and checkers using QCA nanotechnology, is presented. The proposed techniques can be used to detect and check errors during information communication (message word). The parity generators and checkers have been designed based on QCA-XOR/XNOR gates. The circuits present a simple design using homogenous layer of cells and effective technique to find errors in data transmission systems. The results of computer simulation tests carried on the proposed designs have confirmed the suitability of the proposed techniques. QCADesigner tool, ver. 2.0.3, has been used for the simulations carried out in this paper.