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1871 articles for “Paper”
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A state of art design technique of broadband Active/Passive SPST switch using 130nm SiGe BiCMOS technology
Abstract: This paper presents the state of the art for new ultra-wideband active/passive RF SPST switches that can not only reduce insertion loss or potentially generate gain, but also significantly increase isolation. The proposed active/passive ultra-wideband RF SPST switch design using 130 nm SiGebased BiCMOS technology. This switch operates from 5 GHz to 45 GHz with high isolation and low gain/loss Two identical SPST switches and a broadband active balun make …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 1, 2022 · pp. 13–19 Read article
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Artificial Intelligence Based Twitter Sentiment Estimation
Abstract: Twitter is platform which provide services like micro blogging in which user have to write the thought in less than 140 words. The objective of tweet sentiment analysis is to view as the positive, negative,or impartial, happy, sad, satisfied, and other emotional sentiment part in the twitter information. Sentiment analysis can assist any association with tracking down individuals' assessments of theirorganization and items. Twitter is increasing their services at an …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 1, 2022 · pp. 6–12 Read article
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Detecting COVID_19 in X-ray images using artificial neural network
Abstract: In this paper, we propose a method for detecting COVID-19, which is most important for now days in lowering mortality rates. COVID-19 had a rapid impact on our daily lives, businesses, and global trade and transportation. Chest CT scans and CT x-rays reveal particular radiographic abnormalities in people with COVID-19 by means of faster and more efficient representation of the patient's lung that enables for the detection of viral phenomena. …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 1, 2022 · pp. 32–38 Read article
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Data Transmission Using Visible Light
Abstract: Li-Fi, an acronym for Light-Fidelity, is a novel technology that was first introduced by Dr. Harald Haas from Germany in 2011. It allows the transmission of data through light using LED light bulbs. Like Wi-Fi, Li-Fi is a Visible Light Communication (VLC) technology that provides high-speed communication. While Wi-Fi is suitable for providing wireless connectivity in buildings and societies, Li-Fi is ideal for providing high-density wireless data coverage in restricted …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 2, 2022 · pp. 9–13 Read article
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Performance Analysis of MIMO-FBMC Transceivers in Multi-Path Fading Channels
Abstract: Multiple-input multiple-output (MIMO) technology has become an integral part of wireless communication systems, enabling high data rates and improved spectral efficiency. Filter bank multi-carrier (FBMC) modulation is another promising technique that offers several advantages over traditional orthogonal frequency division multiplexing (OFDM) in terms of spectral efficiency and robustness to frequency-selective fading channels. In this paper, we investigate the performance of MIMO-FBMC transceivers in multi-path fading channels. We first review the …
Published in International Journal of Broadband Cellular Communication · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Logarithmic Companding using Firefly Algorithm for PAPR Reduction in OFDM System
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a digital transmission method developed to meet the increasing demand for higher data rates in communications which can be used in both wired and wireless environments. However OFDM is handicapped with a major problem of high peak-to-average power ratio (PAPR), which gives rise to non-linear distortion, inter-symbol interference and out-of-band radiation. Several PAPR reduction techniques have been devised over the last few decades in …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 1–8 Read article
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A Genetic Algorithm for Optimization of MSE & Ripples in Linear Phase Low Pass FIR Filter & Also Compare with Cosine Window Techniques
Abstract: Cosine Window Techniques such as Hamming, Hanning etc. are used to simply design the Finite Impulse Response (FIR) digital Filters. Window function is a scientific function which works on Mathematics by calculating the impulse response of best digital filters. Windowing function is mainly conciliation between the reduction of ripples and Mean Square Error (MSE). But in the proposed research work; Genetic Algorithm (GA) reduces more MSE as well as ripples …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 9–15 Read article
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Text Data Hiding and Extraction of Image using Discrete Wavelet Transform
Abstract: Now a day with the wide use of multimedia is increasing to a large extent, the visual information that contains the high quality and low complexity digital images plays a very vital role in daily life applications such as satellite television, magnetic resonance imaging, computer tomography, geographical information systems and astronomy and many other areas. Main purpose of this paper is to investigate or develop new concepts to design digital …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 16–22 Read article
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A Novel Design of Multiple Band H – Shape Slot Antenna For Radar Communication
Abstract: A compact multiple band patch feed H–shape slot antenna for RADAR application is designed and presented in this paper. The proposed H - shaped slot antenna is built on a FR4 substrate with a length of 32.248 mm and dielectric constant of 4.4, thickness of 3.432 mm, width of 36.51 mm and loss tangent of 0.018. The proposed antenna is designed over a frequency range of 1.0 to 8.0 GHz. …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 29–35 Read article
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A LITERATURE REVIEW OF INTELLIGENCE INTRUSION DETECTION PREVENTION TECHNIQUES FOR UNKNOWN MALWARE FINDING
Abstract: Intrusion detection system (IDS) has played a vital role as a device to guard our networks from unknown malware attacks. However, since it still suffers from detecting an unknown attack, the ultimate challenge in intrusion detection field is how we can precisely identify such an attack. For identifying known malware various tools are available but that does not detect Unknown malware exactly. It will vary according to connectivity and using …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 1–8 Read article
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Spectral Analysis of Heart Rate Variability Signals using Stockwell-Transform
Abstract: This paper introduces the use of Stockwell transform (ST) for spectral analysis of heart rate variability (HRV) signals in time-frequency domain. The ST is depicted numerically and compared with well-liked method of wavelet transform known as continuous Morlet wavelet transform (CMWT). The results of this study show that the normalized mean power and total normalized power in VLF (0.004–0.04 Hz), LF (0.04–0.15 Hz) and HF (0.15–0.4 Hz) were improved compared …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 9–19 Read article
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RESEARCH AND IMPLEMENTATION OF QAM SIGNAL USING TEXAS INSTRUMENTS (TMS320C6713)
Abstract: During the last two decades the growth of digital communication and modulation techniques are widely considered in real time application in order to transfer reliable information with high data rate. Since digital modulation is resistible to noise people show interest in adopting it. Though there is various modulation techniques QAM is one of the most commonly used modulation. The QAM has higher efficiency power which results its application in mobile …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 2, 2016 · pp. 26–32 Read article
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2D Interpolation technique for Channel Estimation in OFDM Systems
Abstract: The use of interpolation technique with low estimation error is imperative for estimating the channel impulse response at data subcarriers for pilot assisted channel estimation techniques in the Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, a novel interpolation technique based on 2 d interpolation is presented. The proposed interpolation technique is based on minimizing the interpolation error and channel noise inherent in Least Square (LS) estimation. A comparative …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 1, 2017 · pp. 27–34 Read article
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Design of Microstrip Rectangular Antenna Array with Low Power RF to DC Generator for Energy Harvesting Application
Abstract: This paper corresponds to the design of 2x2 microstrip patch array with an efficient design of voltage doubler with matching circuit using 1N4148 diode for RF energy harvesting application. This design of Microstrip rectangular antenna array and single stage voltage doubler is used for scavenging of RF energy and convert it to suitable DC voltage. The simulated result shows that the designed antenna array is resonating over multiple frequencies of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 2, 2017 · pp. 1–5 Read article
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Discrete Analysis of Neural Network
Abstract: Network by neural is the continuous process in the modern electronic world. This paper deals with the discrete presentation of neural network. The variables of neural networks are distributed discretely, and its probabilistic study is demonstrated as the advantage of the system of neural networking.
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 2, 2017 · pp. 15–17 Read article
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A Public Key Cryptosystem Based on Discrete Logarithm Problem
Abstract: In this paper, we formulate another discrete logarithm problem (ADLP) and designed a new public key cryptosystem (PKC). We also proved, this ADLP involves some old DLPs (ODLP) but the complexity of our proposed DLP is different from the ODLP. Thus, the security is better as compare to the ODLP based PKCs. Mathematics Subject Classification NO.: 94A60.
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 2, 2017 · pp. 18–20 Read article
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Low Density Parity Check (LDPC) Coded MIMO-Constant Envelop Modulation System With IF Sampled 1-Bit ADC
Abstract: MIMO-constant envelop modulation (CEM) is a very power and complexity efficient system, which is introduced as alternative candidate to the currently used MIMO-Orthogonal Frequency Division Multiplexing (OFDM). CEM system enables to use high efficient nonlinear power amplifier on the transmitter side and 1 bit (low resolution) analog to digital converter (ADC) on the receiver side. Due to adopting the low resolution at the receiver side a great reduction in hardware …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 1–6 Read article
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BER Analysis of Digital Modulation Schemes for OFDM System
Abstract: The growth in the field of communication and the requirement of high-speed and secured data transmission are increasing day by day. Orthogonal frequency-division multiplexing modulation technique is a new technique which supports high-speed data transmission. It is a method of signal modulation that divides a high data rate modulating stream into several slowly modulated narrowband close-spaced subcarriers, and in this way, it is less sensitive to frequency-selective fading. The present …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 15–23 Read article
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Optimal Structure Topology for 11-Level Multilevel Inverter
Abstract: Unlike inverter, multilevel inverter (MLI) is an inverter which works on high power or voltage. It provides a staircase waveform with lower total harmonic distortion. Working on high-power, high-voltage application, they have become more popular. There are some drawbacks also in MLI that it requires a large number of power devices and composite controllability. This paper presents a noble MLI topology using two types of switches, bidirectional and unidirectional. Bidirectional …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 24–32 Read article
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A Review: The Architectural Analysis of the Wireless Sensor Network
Abstract: A wireless sensor network is a collection of numeral sensors nodes & at least one base station. The sensor node is an independent tiny device that comprises of predominantly four units that are sensing, processing, communication & power supply. A comprehensive explanation regarding the WSN is given in this paper. In the beginning an architectural overview of a wireless sensor node, protocol stack, communication protocol architecture. Keywords: Wireless sensor network …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 9–16 Read article