Abstract In this paper a novel design of quantum‐dot cellular automata (QCA) 2 to 1 multiplexer is presented. The QCA circuit simulated and its operation analyzed. A modular simulation methodology developed, which can be used n multiplexers using the as building block. formulated in order increase stability. Copyright © 2009 John Wiley & Sons, Ltd.

Quantum-dot fabrication and characterization is a well-established technology, which used in photonics, quantum optics, nanoelectronics. Four quantum-dots placed at the corners of square form unit cell, can hold bit information serve as basis for quantum-dot cellular automata (QCA) nanoelectronic circuits. Although several basic QCA circuits have been designed, fabricated, tested, proving that functional, fast low-power circuits, nanoelectronics still remain its infancy. One reasons this...

The increasing complexity of computer networks calls for the development new models their simulation. Cellular automata (CAs) are a well-known and successful model complex systems. This paper presents system modeling simulation based on CAs. More specifically, 2D NaSch CA network has been developed, several were simulated. Algorithms connectivity evaluation, reliability shortest path computation in have also implemented. Our system, called Net_CA was designed developed as an interactive tool...

Cellular automata (CAs) have been widely used to model and simulate physical systems processes. CAs also successfully as a VLSI architecture that proved be very efficient at least in terms of silicon-area utilization clock-speed maximization. Quantum cellular (QCAs) one the promising emerging technologies for nanoscale quantum computing circuit implementation, provides high scale integration, switching frequency extremely low power characteristics. In this paper we present new automated...

Multiplexers are extremely important parts of signal control systems. Some critical circuits computing systems, like memories, use large multiplexers in order to present the value a specific memory cell their output. Several quantum-dot cellular automata (QCA) have been designed and need for QCA access system becomes prominent. A modular 2 n 1 multiplexer covering small area could reduce size such conclusively increase circuit integration. In this paper we novel design size, that can be used...

This paper presents a new geometrical feature based on iris geometry for automatic children detection in digital images. The proposed is simple measures of face elements and especially iris. Iris outer boundary approximated as circle the defined using area distance from mouth line. approach compared with two similar features. Experimental results show superiority over existing ones. more robust to features that use information human faces gives better classification results, useful forensics...

A tested, verified, and calibrated lithography simulator, based on cellular automata, is used to study phenomena, the effects of which are becoming more pronounced as integrated circuits (ICs) pushed deeper into nanometre region. Lithography profiles developed non-planar Si surfaces, where a step or sloped line present, were studied. Numerical experiments that elucidate such resist surface roughness profiles, well effect defects located bulk, in presence also presented. These expected be

In recent years cellular automata (CAs) have been used widely to model and simulate physical systems also solve scientific problems. CAs successfully as a VLSI architecture proved be very efficient at least in terms of silicon-area utilisation clock-speed maximisation. Quantum cellullar (QCA) is one the promising emerging technologies for nanoscale circuit implementation. QCA technology provides high scale integration, switching frequency low power characteristics. work reported here,...

In this paper, a new approach of RAM circuits, using Quantum-dot Cellular Automata (QCA), based on programmable crossbar architecture, is presented. addition, methodology for 2n bits RAMs Using the aforementioned any designer can design regardless its size. The proposed designs utilize benefits QCA architecture. Namely, circuit characterized by regularity and ability customization. features that has, allow designers to use available area efficiently.

Signal synchronization of large scale Quantum-dot Cellular Automata (QCA) circuits is one the most complex QCA design challenges. More specifically, problem, especially in circuits, characterized as rather due to technology constraints. In this paper, by extensively analyzing important properties signal problem we propose an efficient methodology tackle based on well-known from computer science, Firing Squad Synchronization Problem (FSSP). Comparing FSSP with many similarities can be found....

A tested, verified and calibrated lithography simulator was used to study phenomena whose effects are becoming more pronounced as integrated circuits pushed deeper into the submicron region. Numerical experiments were carried out elucidate effect of defects located in resist bulk, well surface roughness, on developed profiles.

Non-linear morphological edge detectors have been proven to be robust in the presence of noise and able discriminate between edges regions corrupted by noise. In this paper a novel non-linear detector is presented when implemented as compact circuit on Quantum Cellular Automata (QCA) crossbar nanoelectronic architecture. The proposed QCA implementation provides high performance, very low dimensions, parallel processing power consumption. Moreover, design obeys with rules while focusing...

A neural network for the simulation of photolithographic resist exposure process is proposed first time. The model constructed by means a feed-forward network, using back-propagation training method. can be done with only few experimental measurements satisfactory output results. This compared ABC parameter model, which currently in use; it found to produce exactly same results, but much faster because parallel structure networks. Finally, this integrated cellular automaton etching...

Quantum-dot fabrication is a well-established nanotechnology, which have many applications in different scientific fields. By placing four quantum-dots on the corners of square, cell formed, digital information can be stored. This serves as structural device Cellular Automata (QCA) circuits. After QCA presentation, several circuits and systems been designed proposed literature. However, one biggest problems designers to face pave successful design functional large scale signal...

Quantum-dot Cellular Automata (QCA) provide very high scale integration potential, switching frequency, and have extremely low power demands, which make the QCA technology quite attractive for design implementation of large-scale, high-performance nanoelectronic circuits. However, state-of-the-art circuit designs were not derived by following a set universal rules, as is case CMOS circuits, and, result, it either impossible or difficult to combine blocks in effective large-scale In this...

Recent advances in electronic technology integration coupled with increasing needs for more services portable communications favors the development of high performance dual-mode terminals. We present complete architecture implementation GMSK/GFSK modulator/demodulator including FIR filters design. The main features and architectural are described. interface ASPIS processor A/D & D/A converters is also described detail manner. whole was by VHDL hardware language, synthesised implemented...