Madhavi Repe - Academia.edu (original) (raw)

Papers by Madhavi Repe

International Journal on Recent and Innovation Trends in Computing and Communication, Jul 21, 2023

Quantum-Dot Cellular Automata (QCA) is a transistor-less technology. In QCA, Columbic repulsion b... more Quantum-Dot Cellular Automata (QCA) is a transistor-less technology. In QCA, Columbic repulsion between electrons in the quantum dots makes data transfer possible. This paper presents the design of flip flops using a proposed Rotated-Normal Cells with Displacement (RND) inverter and a cell interaction method. The SR latch, SR Flip Flop (FF), D FF, and T FF are developed using QCA. The proposed D FF gives total and average energy dissipation of 1.31e-002eV and 1.19e-003eV respectively. It also gives a delay of 1 clock phase. The Proposed T FF provides total and average energy dissipation of 2.40e-002eV and 2.18e-003eV respectively, depicting efficient D FF and T FF in energy dissipation. The proposed SR Flip flop design gives an efficient area. The FFs with the proposed RND inverter and cell interaction method can be the best choice for future Nano communication to construct Nano circuits with less energy dissipation and high speed.

Quantum Dot Cellular Automata is a Nano device efficient than other devices in nanotechnology for... more Quantum Dot Cellular Automata is a Nano device efficient than other devices in nanotechnology for the last two decades. It is beneficial over Complementary Metal Oxide Semiconductor technology like high speed, low energy dissipation, high device density and high computation efficiency. To achieve further optimization different methods like simplifications in Boolean expressions, tile method, clocking scheme, cell placement, cell arrangement, novel input techniques, etc., are in use. These methods improve the performance metrics in terms of QCA Cells, total circuit area, delay in output, power consumption, and coplanar or multilayer layout. This paper is about the novel NOT gate layout designed with efficient parameters compared to existing NOT gates except area parameters with analysis and XOR gate and multiplexer circuits. The novel gate provides an improvement of 55% in the number of cells, polarization raised by 0.33, and an 80.77% improvement in total area. These circuits illustrate further scope in QCA circuit design efficiently. XOR circuit shows area reduction up to 0.006 μm2 with 0.5 clock cycle delay. Further optimization in XOR parameters and with this novel NOT gate researchers can optimize parameters to bring revolution and digitalization.

Scientific Reports, 2024

Quantum-Dot Cellular Automata (QCA) is a promising technology for designing high-performance and ... more Quantum-Dot Cellular Automata (QCA) is a promising technology for designing high-performance and efficient logic circuits, surpassing traditional Complementary Metal Oxide Semiconductor approaches. In today's digital era, the demand for digital circuits with high speed, device density, and energy efficiency is paramount. This paper focuses on the innovative Rotated Normal Cells with Displacement (RND) inverter model, employing normal and rotated cells with a 10 nm displacement through a cell interactive method. Digital circuits designed using the RND inverter exhibit superior performance compared to existing designs. The proposed RND inverter gate utilizes only four QCA cells, occupying a total area of 4525.55 nm 2. With a total energy dissipation of 0.508 meV and an average energy dissipation per cycle of 0.0462 meV, it achieves a polarization of 9.77. The novel RND inverter demonstrates a 44% improvement in cell area and a 63% reduction in total area compared to current designs, offering enhanced energy efficiency with 0.26 improved polarization. The RND inverter and the digital circuits facilitate finding applications in efficiently constructing various components within Quantum Computers. Beyond quantum computing, the RND inverter proves applicable in designing Nano-sized electronic gadgets and temperature-controlled circuits, showcasing its versatility across diverse technological applications. Quantum-dot Cellular Automata (QCA) stands out as a premier nanotechnology device, surpassing other Nanodevices in addressing the limitations of CMOS technology 1. Renowned for its exceptional attributes, including high efficiency, elevated device density, and minimal power consumption, QCA operates within the Terahertz (THz) range. This technology adeptly represents binary information on its cells. Cells in QCA Quantum dots in QCA are nanometer-scaled devices in the range of up to 10 nm. Quantum dots contain tiny droplets of free electrons. Quantum-dot cellular automata have two main concepts: quantum dot and cellular automata. Cellular automata is a term that has a grid of cells. The cells consist of four quantum dots at the four corners of it. The cells have a square shape with a standard size of 18 nm × 18 nm. The rectangular box around the cells differentiates them from the others. Cells can have an arrangement in an array form. Cells have a finite number of states at a discrete time. The previous state of a cell and its immediate adjacent cells decide the state of the cell. The radius of effect in QCA is vital in selecting the number of adjacent cells. It helps to calculate the energy state of the cell and kink energy. The charging of a cell with two electrons makes these electrons take opposite positions. It is possible due to the effect of the columbic repulsion. There are only two opposite position possibilities of these electrons called cell polarization. These two states are nothing but binary 0 and binary 1. Figure 1 shows the structure of a cell. Figure 2 shows the states of a cell or cell polarization. Equation (1) states cell polarization and is denoted by 'P'. It considers the presence or absence of an electron in a quantum dot. The quantum dots numbering is shown in Fig. 1.

2022 6th International Conference On Computing, Communication, Control And Automation (ICCUBEA

2022 2nd International Conference on Intelligent Technologies (CONIT)

2010 International Conference on Recent Trends in Information, Telecommunication and Computing, 2010

... In the first sentence Peter is a liar, and in the second one the liar is John. ... 2002 Page(... more ... In the first sentence Peter is a liar, and in the second one the liar is John. ... 2002 Page(s):717 - 721 vol.2 [8] Prosody generation with a neural network: weighing the importance of input Parameters Sonntag, GP; Portele, T.; Heuft,B.;Speech, and Signal Processing, 1997. ...

2010 International Conference on Signal Acquisition and Processing, 2010

2020 12th International Conference on Computational Intelligence and Communication Networks (CICN)

The fast pace of today’s life has undoubtedly brought ease in life but carried stress in every wa... more The fast pace of today’s life has undoubtedly brought ease in life but carried stress in every walk of life. Stress is a state of mind which leads to emotional instability leading to number of health issues. This instability needs to be addressed technically as the existing systems do not measure the stress of everyone with any advanced system rather counselling is one of the areas to conclude about stress. Existing technical systems like electroencephalography (EEG) are used to record the brainwaves of a patient who does have typical symptoms of abnormality in health. The project discussed in this paper is used to measure & record the brain waves of a person. These recorded brainwaves further are analyzed to define the state of mind of that person. This analysis is of great help in maintaining the physical and mental health of the person before it creates a negative impact. Further this system can be used to reduce the stress level of a person and making the person feel relaxed.

2020 12th International Conference on Computational Intelligence and Communication Networks (CICN), 2020