Ali Newaz Bahar

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Ali Newaz verified their affiliation via an institutional email.

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• PhD Candidate
• Research Assistant at University of Saskatchewan

Quantum-dot Cellular Automata (QCA) is a new nano-scale technology that due to making significant improvements in the design of electronic circuits can be considered as an appropriate alternative to CMOS technology. The Arithmetic Logic Unit (ALU) is a fundamental component of the Central Processing Unit (CPU) to carry out the arithmetic and logica...

This letter presents an efficient single-layer serial-parallel multiplier (SPM) in Quantum-dot Cellular Automata (QCA). We have designed a bit-serial adder (BSA) using a fully utilized majority gate (MV), and a modified Eshaped exclusive-OR (E-XOR) gate. The cell-interactive properties of the QCA cell have been utilized to realize the proposed E-XO...

Quantum-dot cellular automata (QCA) is a rapid-growing nano-technology worthy of designing ultra-dense, low-power and high-performance digital circuits. In parallel computing, the multistage interconnection network (MIN) provides maximum bandwidth to the components and minimum latency access to the memory modules. Much research has been conducted o...

Quantum-dot cellular automata (QCA) is recognized as one of the rapidly growing nanotechnologies and an alternate to CMOS at the nanoscale. The QCA technology is capable of designing nanoscale digital circuits with a clock speed of terahertz range and ultralow power consumption. In this article, an effective single-layer binary discrete cosine tran...

The recent fabrication progress in logic circuits using atomic-scale silicon dangling bond (DB) makes it a promising candidate for field coupled nanocomputing. Moreover, the use of silicon substrate opens the possibilities to integrate DB circuits with existing infrastructure for the complementary metal-oxide-semiconductors (CMOS) devices. However,...

The quantum cellular automata (QCA) paradigm offers an ultra-low-power approach for realizing nanocomputing circuits at the molecular level, offering high parallelism capabilities. This study introduces a coplanar and energy-efficient implementation of the approximate binary discrete cosine transform (BinDCT) module using QCA technology. The propos...

Link : https://authors.elsevier.com/a/1jEWc_gj%7Ex2QEJ

Quantum dot cellular automata (QCA) is considered an alternative to conventional technologies like CMOS (Complementary Metal-Oxide-Semiconductor) technology due to its potential for lower power consumption, higher speed, and increased device density. QCA introduces a novel approach to designing nano communication circuits and systems. Nano communic...

It is expected that Complementary Metal Oxide Semiconductor (CMOS) implementation with ever-smaller transistors will soon face significant issues such as device density, power consumption, and performance due to the requirement for challenging fabrication processes. Therefore, a new and promising computation paradigm, nanotechnology, can replace CM...

Atomic silicon and reversible logic are domain field-coupled nanocomputing (FCN) techniques that have drawn significant attention for their lower power consumption, area, and design overhead. As atomic silicon and reversible logic reach dramatically reduced occupied area and power consumption, they can be a suitable alternative to CMOS technology....

Reversible logic enables ultra-low power circuit design and quantum computation. Quantum-dot Cellular Automata (QCA) is the most promising technology considered to implement reversible circuits, mainly due to the correspondence between features of reversible and QCA circuits. This work aims to push forward the state-of-the-art of the QCA-based reve...

SRAM or Static Random-Access Memory is the most vital memory technology. SRAM is fast and robust but faces design challenges in nanoscale CMOS such as high leakage, power consumption, and reliability. Quantum-dot Cellular Automata (QCA) is the alternative technology that can be used to address the challenges of conventional SRAM. In this paper, a c...

With the growing use of quantum-dot cellular automata (QCA) nanotechnology, digital circuits designed at the Nanoscale have a number of advantages over CMOS devices, including the lower utilization of power, increased processing speed of the circuit, and higher density. There are several flip flop designs proposed in the literature with their reali...

Quantum-dot Cellular Automata (QCA) nanotechnology is an alternative technology with high speed, high density and low power for designing nanoscale circuits. A novel design of Full Adder-Subtractor based on full subtractor using single layer is proposed. The proposed architecture has a major advantage in terms of complexity, area, latency, and powe...

Quantum-dot cellular automata (QCA) is a domain coupling nano-technology that has drawn significant attention for less power consumption, area, and design overhead. It is able to achieve a high speed over the CMOS technology. Recently, the tendency to design reversible circuits has been expanding because of the reduction in energy dissipation. Henc...

In very large-scale integration (VLSI) circuits, a partial of energy lost leads to information loss in irreversible computing because, in conventional combinatorial circuits, each bit of information generates heat and power consumption, thus resulting in energy dissipation. When information is lost in conventional circuits, it will not be recoverab...

Quantum-dot Cellular Automata (QCA) is a rival to complementary-metal-oxide-semiconductor (CMOS)-based technology and one of the most cutting-edge nano-scale technologies. The multiplexer is a fundamental component in the fields of nano communication and nano computation. The investigative item of this article is the QCA multiplexer, and a handful...

Due to the development of integrated circuits and the lack of responsiveness to existing technology, researchers are looking for an alternative technology. Quantum-dot cellular automata (QCA) technology is one of the promising alternatives due to its higher switch speed, lower power dissipation, and higher device density. One of the most important...

Quantum-dot cellular automata (QCA) is promising nanotechnology that offers an alternative to complementary metal-oxide-semiconductor (CMOS) technology. Nanoscale size, ultra-low power dissipation, and Terahertz range operating frequency make QCA more attractive to circuit designers. In QCA designs, wire-crossing techniques are challenging, especia...

In this work, an energy-saving smart light controlling system has been proposed that can maintain the desired intensity of light in a room automatically. Unlike the conventional light controlling system, the proposed system splits a large room into several zones and analyzes the light intensity of each zone; hence, the controlling unit adjusts the...

Multijunction solar cells are champions for record-breaking efficiencies which are evident from both theoretical and experimental results reported in photovoltaic literature. Herein, we have used an advanced version of one-dimensional multijunction solar cell simulator, MSCS-1D:V2 for attaining high efficiencies of triple-junction solar cells const...

The miniaturization of electronic devices and the inefficiency of CMOS technology due to the development of integrated circuits and its lack of responsiveness at the nanoscale have led to the acquisition of nanoscale technologies. Among these technologies, quantum-dot cellular automata (QCA) is considered one of the possible replacements for CMOS t...

Variational quantum circuit (VQC) is a quantum-classical (QC) machine learning approach that accommodates quantum processes on a classical computer. Malaria is a worldwide deadly disease caused by Plasmodium parasites. This research designs an effective VQC-based approach to recognize the existence of malaria from the Red blood cell (RBC) image thr...

One of the emerging technologies at the nanoscale level is the Quantum-Dot Cellular Automata (QCA) technology, which is a potential alternative to conventional CMOS technology due to its high speed, low power consumption, low latency, and possible implementation at the atomic and molecular levels. Adders are one of the most basic digital computing...

Concentrator Photovoltaic (CPV) cells are the most efficient class of solar cells among the PV family. Usually, three junction solar cells have been used for the concentrator photovoltaic arrangements. The numerical simulation of high-efficiency concentrator multijunction solar cells (MJSC): GaInP 2 /GaAs/Ge and GaInP 2 /GaAs/GaAs 0.92 Bi 0.08 have...

Self-multiplier or square calculator design using the Vedic formulas is the new trend in quantum-dot cellular automata (QCA) technology. However, an efficient coplanar design and a complete performance analysis are still desired. This brief presents the coplanar QCA architecture of a 2-bits square calculator (proposed design-1 or PD1) using the Ved...

A single-mode square photonic crystal fiber (S-PCF) for the wide-band dispersion compensation at the wavelength interval 1340 to 1640 nm over the telecommunication windows is represented. In the numerical analysis of several guiding properties of the photonic crystal fiber (PCF), a finite-element method has been applied over the entire wavelength b...

Chalcopyrite CIGS solar cells have been demonstrated with the highest efficiency for thin-film solar cell families. Herein, the effects of thickness and bandgap of cadmium (Cd) free ZnS buffer layer grown on CIGS absorber with an ordered vacancy compound (OVC) at buffer/absorber interface in CIGS solar cell structure have been investigated using AD...

A numerical simulation and substantiation have been accomplished to analyze the impact of Al 0.9 Ga 0.1 As alloy composite buffer layer band gap and thickness, absorber layer thickness on a ZnO:Al/i-ZnO/Al 0.9 Ga 0.1 As/CIGS/Mo/SLG structured non-toxic Cd-free CIGS photovoltaic cell. In this study, the cell output attributes including efficiency (η...

In this work, a novel numerical analysis tool named one-dimensional multijunction solar cell simulator (MSCS-1D) has been reported. This numerical tool provides an easy platform to verify whether the intended work on a multijunction solar cell can be simulated as per expectations. A modified spectral p-n junction model has been used to develop this...

A crop’s health can be determined by its leaf nutrient status; more precisely, leaf nitrogen (N) level, is a critical indicator that carries a lot of worthwhile nutrient information for classifying the plant’s health. However, the existing non-invasive techniques are expensive and bulky. The aim of this study is to develop a low-cost, quick-read mu...

Quantum-dot cellular automata (QCA) is one of the alternative nanotechnologies that empower nanoscale circuit models with high performance and minimal energy depletion features. In this study, design for a 5-input majority gate (MV5) is proposed. The reported design requires a smaller number of cells, lower time delay, less design cost, and area. T...

Quantum-dot cellular automata (QCA) is incipient nanotechnology and potential substitute to orthodox CMOS archetypes at nano extent that assures to conceive digital circuits with minimal energy, extreme speed, and particularly dense structures. In this study, a new high-speed and low intricacy QCA full adder-subtractor (FAS) configuration is presen...

At the present time, logic circuits design prototypes with quantum-dot cellular automata (QCA) have been comprehensively researched. The confines of orthodox CMOS technology induce to the breakthroughs of different technologies, one of which is QCA. Thoughtlessly, because of the deficiency of advance assembly support, QCA circuits frequently agoniz...

Diabetes Mellitus (DM) or diabetes is one of the metabolic diseases exhibiting high blood glucose level over a prolonged period. The management of diabetes is associated with the proper monitoring of blood glucose level. Researchers have been working on developing robust techniques to monitor the level of glucose in the blood. This paper aims at pr...

Quantum-dot cellular automata (QCA) is the latest nano-scale technology and a precise potential substitute for conventional Complementary Metal-Oxide-Semiconductor (CMOS) archetype. One of the elementary constituents in a digital circuit is the memory, therefore designing a Random-Access Memory (RAM) with optimal structure is a vital issue. In this...

In this article, we have proposed a large negative dispersion coefficient and highly nonlinear polarization maintaining single mode square photonic crystal fiber. The proposed design is extremely attractive for compensation of chromatic dispersion of − 1052.60 ps/(nm km) to − 2421.90 ps/(nm km) around 1340–1640 nm wavelength band. Guiding character...

Quantum-dot cellular automata (QCA) is one of the emergent nano-technologies and a potential substitute for transistor based technologies. In this research, an efficient QCA based T, SR and JK flip-flops have been proposed. The proposed gates are implemented with multiplexer, three-input Majority gate and XOR gate. The circuit layouts are designed...

An extremely low loss circle-based star shape photonic crystal fiber (CS-PCF) has been proposed for terahertz (THz) spectrum. A dielectric material TOPAS has been used for constructing the proposed model. Some important parameters for the proposed waveguide have been investigated a wide THz spectrum ranging from 0.5 to 2.50 THz. The simulation resu...

Nowadays, Quantum-dot Cellular Automata (QCA) is a well-known technology for designing digital systems. Actually, QCA is the most possible alternative for semiconductor transistor based technology. In this paper, an improved design of QCA based convolution encoder has been proposed. The proposed encoder outperforms previous QCA based design from th...

Quantum-dot cellular automata (QCA) is an emerging nanotechnology and a possible alternative solution to the limitation of complementary metal oxide semiconductor (CMOS) technology. One of the most attractive fields in QCA is the implementation of configurable digital systems. This article presents a novel multifunctional gate called the modified-m...

Nanotechnologies, exceedingly Quantum-dot Cellular Automata (QCA), presents a notable perception for upcoming nanocomputing. Feature extent of circuits is moving to sub-micron point that produces the sophisticated device intricacies. In this work, QCA is considered as an application technique for reversible logic. A multi-layer reversible Fredkin c...

Quantum-dot cellular automata (QCA) is the beginning of novel technology and is capable of an appropriate substitute for orthodox semiconductor transistor technology in the nanoscale extent. A competent adder and subtractor circuit can perform a substantial function in devising arithmetic circuits. The future age of digital techniques will exercise...

The present Very Large Scale Integration (VLSI) technology is based on Complementary Metal-oxide-Semiconductor (CMOS) technology. The development of the VLSI technology has reached its peak due to the fundamental physical limits of CMOS technology. The recent challenges, as well as the physical limitation of the traditional CMOS technology, has ove...

Today, data centers power utilization has massive influences on environments. Data centers are energy-starved, crucial structures that direct big-scale internet-based facilities. The extreme energy utilization and green contamination of data centers have turned into a serious concern. Energy expenditure archetypes are decisive in planning and impro...

Quantum-dot Cellular Automata (QCA) is a new nano-innovation in digital systems. It is a possible alternative to ordinary CMOS technology. It offers several advantages in reversible logic such as small size and low power dissipation. Therefore, lots of attentions have been paid to implement different reversible QCA circuits. In this way, an improve...

Quantum-dot Cellular Automata (QCA) is an emerging nanotechnology and a possible alternative to overcome the limitations of complementary metal oxide semiconductor (CMOS) technology. One of the most attractive fields in QCA is the implementation of digital system. As, information loss is a major issue in irreversible digital computation systems. Th...

Complementary Metal-Oxide-Semiconductor (CMOS) technology is approaching its fundamental physical limits and deficits. Some emerging technologies (mostly at nanoscale) have been proposed to replace it. Among these new technologies, Quantum-dot Cellular Automata (QCA) provides a solution at nanoscale and also offers a new method of computation and i...

In the near future, the part of energy dissipation due to information loss in irreversible computation will become a serious issue in VLSI chips. A Quantum-dot Cellular Automata (QCA) is anemerging nanotechnology which facilitates reversible computing. It's a new computing paradigm with applications in extremely low energy dissipation. In this stud...

Quantum-dot cellular automata (QCA) as nanotechnology is a pledging contestant that has incredible prospective to substitute complementary metal–oxide–semiconductor (CMOS) because of its superior structures such as intensely high device thickness, minimal power depletion with rapid operation momentum. In this study, the dataset of average output po...

An enormously low loss symmetrical hybrid decagonal porous core spiral photonic crystal fiber (SH-PCF) has been proposed for terahertz (THz) wave guiding. The modal characteristics of the fiber and its mathematical analysis have been numerically completed using a full-vector finite element method (FEM). Simulation results show an ultra-low material...

The particularly sensitive circular lattice Photonic Crystal Fiber (PCF) based Surface Plasmon Resonance (SPR) sensor is proposed to gain high sensitivity for the detection of unknown analytes. In this model, two-layer PCF based on the SPR has been designed. A plasmonic chemically inactive material gold (Au) with thickness 35 nm is used to the outs...

A single-mode square photonic crystal fiber (S-PCF) for the wide-band dispersion compensation at the wavelength interval 1340 to 1640 nm over the telecommunication windows is represented. In the numerical analysis of several guiding properties of the photonic crystal fiber (PCF), a finite-element method has been applied over the entire wavelength b...

By the gradual increasing of the attribute size and energy utilization in VLSI chips the component of energy depleted owing to information forfeiture in irreversible valuations will turn into a crucial drawback in the future. Nano components, particularly quantum-dot cellular automata (QCA), have attained extensive interests for their foremost aspe...

An octagonal cladding based microstructure optical fiber (MOF) with rotated circular manner core is proposed to obtain low loss, and near zero flat dispersion characteristics. The guiding properties of the designed MOF are numerically investigated by utilizing electromagnetic full vectorial finite element method (FV-FEM) with absorbing boundary con...

Novel digital technologies always lead to high density and very low power consumption. One of these concepts is Quantum-dot Cellular Automata (QCA), which is one of the new emerging nanotechnology-based on Coulomb repulsion. This article presents three architectures of logical “XOR” gate, a novel structure of two inputs “XOR” gate, which is used as...

In this paper, it is represented a single mode square photonic crystal fiber (S-PCF) for wide band dispersion compensation at wavelength range 1340 to 1640 nm over the telecommunication windows. For numerical analysis of several guiding properties of the PCF, a finite element method (FEM) has been applied over the entire wavelength band. According...

Quantum-dot cellular automata, is an extremely small size and a powerless nanotechnology. It is the possible alternative to current CMOS technology. Reversible QCA logic is the most important issue at present time to reduce power losses. This paper presents a novel reversible logic gate called the F-Gate. It is simplest in design and a powerful tec...

Quantum-dot cellular automata is a promising nanotechnology and a possible alternative to complementary metal-oxide-semiconductor (CMOS) transistors. Nowadays, several sequential and combinational logic circuits have been designed and implemented using QCA nanotechnology. However the impact of energy dissipation constraint is still unobserved while...

The dataset of physical properties for the proposed CIGS solar cell with Cd-free AlGaAs buffer layer has been depicted in this data article. The cell performance outcome due to different AlGaAs buffer layer band gap is reported along with optimum solar cell performance parameters for instance, open circuit voltage [Formula: see text], short circuit...

Quantum-dot Cellular Automata (QCA) is an emerging nanotechnology and a possible alternative to the related issues of traditional CMOS. It offers advantages such as high device density, high operating speed and ultra low power consumption than semiconductor transistor based technologies. Adder and Subtractor circuits are the fundamental arithmetic...

Scaling down trend of CMOS transistor is approaching its lowest point, the rational substitute for the CMOS technology to attain advance improvements in terms of size, low power, and device density usage is an imperative essential. Due to the several physical limitations and circuit bounds of CMOS technology, it is the requirement of a new possible...

Quantum dot-cellular automata (QCA) is a developing nanotechnology, which seems to be a good candidate to replace the conventional complementary metal-oxide-semiconductor (CMOS) technology. In this article, we present the dataset of average output polarization (AOP) for basic reversible logic gates presented in [1]. QCADesigner 2.0.2 has been emplo...

This article represents the baseline data of the several semiconductor materials used in the model of a CIGS thin film solar cell with an inclusion of ZnS buffer layer. As well, input parameters, contact layer data and operating conditions for CIGS solar cell simulation with ZnS buffer layer have been described. The schematic diagram of photovoltai...

This paper represents a spiral photonic crystal fiber (S-PCF) based optical sensor which exhibits high relative sensitive as well as low confinement loss simultaneously. The proposed PCF contains ten arms as well as each arm consists of nine circular air holes that forms spiral shape and core is formatted with circular holes filled with ethanol. Va...

Quantum-dot cellular automata (QCA) is a beneficial technology which is counted as one potential replacements for typical complementary metal oxide semiconductor (CMOS) archetype. QCA has excessive expedient thickness, particular performance speed with exceptionally low power depletion. Researchers have viewed plentiful devices of QCA-based logic c...

In recent years, quantum cellular automata (QCA) have been used widely to digital circuits and systems. QCA technology is a promising alternative to CMOS technology. It is attractive due to its fast speed, small area and low power consumption. The QCA offers a novel electronics paradigm for information processing and communication. It has the poten...

Reversible computing in Quantum-dot Cellular Automata (QCA) is an expanding research field at ultra low power nano-computing area. Utilization of minimum power, rapid momentum, advanced switch in grate and scale arrangement of QCA assurances cost operative proficient logic outline with extreme intricacy at nano-scale. In this article two fundamenta...

High efficiency ultrathin CdTe film is an excellent candidate for reliable, efficient, stable and low cost solar cells. In this paper, a high efficiency CdS/CdTe solar cell has been studied by using ADEPT 1D simulation tool. The proposed device has been simulated with a reduced CdTe absorber layer thickness and a ZnTe layer as back surface field (B...

In this article, different photonic crystal fiber (PCF) background material effects have been studied for sensing and communication applications. By employing different PCF background materials such as BK7, silica, and ZBLAN, some important PCF sensor parameters have been studied by full vectorial finite element method (FV-FEM) with perfectly match...

Quantum-dot cellular automata materialize as a study topic to outline nanometre size circuit. Since this nanotechnology suppresses the hitch of existing CMOS archetype, it has significant functions in quantum computation. This analysis presents an efficient layout of Feynman gate; and based on the proposed gate a reversible 3-bit binary to grey and...

The article comprises numerical data of distinct semiconductor materials applied in the sketch of a CdTe absorber based ultrathin film solar cell. Additionally, the contact layer parametric values of the cell have been described also. Therefore, the simulation has been conducted with data related to the hetero-structured (n-ZnO/n-CdS/p-CdTe/p-ZnTe)...

In this paper, a highly sensible photonic crystal fiber based on a modified hexagonal structure has mentioned and demonstrated modal analysis precisely. Numerical investigation of the proposed fiber is rigorously computed using full vector finite element method (FV-FEM) with anisotropic perfect match layers. Liquid analytes are used here to infiltr...

In nanotechnologies, quantum-dot cellular automata (QCA) offer promising and attractive features for nano-scale computing. QCA effectively overcomes the scaling shortfalls of CMOS technology. One of the variants of QCA is 4 Dot 2 Electron QCA which is well explored and researched. The main concentration of this study is on 2 Dot 1 Electron QCA, an...

This article represents the data set of micro porous core photonic crystal fiber based chemical sensor. The suggested structure is folded cladding porous shaped with circular air hole. Here is investigated four distinctive parameters including relative sensitivity, confinement loss, numerical aperture (NA), and effective area (Aeff). The numerical...

Software-Defined Networking (SDN) has become a significant topic of discussion among the network service providers, operators, and equipment vendors where control planes are separated from the data plane in networking devices. This paper implements Bellman-Ford algorithm for computing the shortest path in Software-Defined Networking using Mininet e...

This article represents a gas sensor based on spiral photonic crystal fiber (S-PCF) for detecting harmful or colorless gasses and monitoring air pollution by metering gas condensate elements in production facilities. The proposed micro-structured S-PCF contains two layers porous core encircled by a spiral shape cladding. The geometrical parameters...

Absorber layer thickness gradient in Cu(In 1−x Ga x)Se 2 (CIGS) based solar cells and several substitutes for typical cadmium sulfide (CdS) buffer layers, such as ZnS, ZnO, ZnS(O,OH), Zn 1−x Sn x O y (ZTO), ZnSe, and In 2 S 3 , have been analyzed by a device emulation program and tool (ADEPT 2.1) to determine optimum efficiency. As a reference type...

In the era of modern digital technology, highly scaled and ultra-low power consuming devices have drawn a considerable attention. Quantum-dot Cellular Automata (QCA) are such an emerging nanotechnology that dispenses a highly dense and ultra-low power consuming binary information encoding paradigm. This potential merit instigated the QCA to be an e...

The study of sending and receiving secret messages is called cryptography. Generally, senders and receivers are unaware about the process of encryption and decryption. Hence, encryption plays an important role in data communication and data security. The meaning of encryption is not only to keep data confidential from unwanted access but also ensur...

Power consumption in irreversible QCA logic circuits is a vital and a major issue; however in the practical cases, this focus is mostly omitted.The complete power depletion dataset of different QCA multiplexers have been worked out in this paper. At −271.15 °C temperature, the depletion is evaluated under three separate tunneling energy levels. All...

For immense demand of speedy high-end gadgets, chips are becoming denser, but Moore's law is falling flat lately. Complementary Metal-Oxide-Semiconductor (CMOS) technology is on its brink. Quantum-dot cellular automata (QCA) has become a potential alternative technology to provide faster speed with low power dissipation at nano-scale extent. Here,...

The physical data of the semiconductor materials used in the design of a CIGS absorber based thin film photovoltaic cell have been presented in this data article. Besides, the values of the contact parameter and operating conditions of the cell have been reported. Furthermore, by conducting the simulation with data corresponding to the device struc...

Quantum dot-cellular automata (QCA) are one of novel emerging nanotechnology, which seem to be excellent alternatives to the conventional complementary metal-oxide semiconductor (CMOS) technology. QCA technology has a wide range of optimize facet such as ultra-low power consumption, faster switching speed and extremely density structure. In this pa...

Quantum-dot cellular automata (QCA) has been analyzed methodically as a rising nano technological model where coulombic interaction has been used to carry out binary operations. QCA draw an enormous attention for its extreme speed, low power and exceptionally dense integration comparing the conventional Complementary Metal–Oxide–Semiconductor (CMOS...