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241 articles for “signal”
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Comparison of Three Interpolation in OFDM Systems
Abstract: Doppler shift and channel induced fading effects are more likely to induce inter carrier interferences (ICI), which are the challenging research area in the orthogonal frequency division multiplexing (OFDM). This paper uses channel estimation for canceling the effects of ICI from the received signals. One dimensional frequency domain comb-type channel estimation are considered because of its low computational complexity and effective tracking ability of the fast fading channel. The channel …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 1–9 Read article
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Comparative Analysis of Spectrum Sensing Technique in Cognitive Radio Network
Abstract: Cognitive Radio enhances the utilization of unused spectrum and globalized the radio environment for different band users that make use of various spectrum sensing techniques for transmission spectrum which involves spectrum usage characteristics across multiple dimensions such as time, space, frequency, and code and determining what type of signals are occupying the spectrum. In this project, cognitive radio spectrum sensing techniques are analyzed and Receiver operating characteristics of “Energy detection”, …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 20–28 Read article
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An Overview of Spectrum Sensing Techniques in Cognitive Radio Network
Abstract: Cognitive Radio enhances the utilization of unused spectrum and globalized the radio environment for different band users that make use of several spectrum sensing techniques for transmission spectrum which includes spectrum usage characteristics across multiple dimensions such as frequency, space, time and code and determining what type of signals are occupying the spectrum. The existing works in spectrum sensing are reviewed, and important issues in dynamic spectrum allocation and sharing …
Published in International Journal of Broadband Cellular Communication · Vol. 3, Issue 1, 2017 · pp. 29–33 Read article
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Adaptive Modulation Coding for MIMO OFDM
Abstract: Wireless communication is one of the mainly active areas of tools progress and has become an ever-more essential and prominent part of everyday life. Several transmission modes are defined in LTE standards. A very little transmission modes are considering for LTE in physical layer parameters and wireless channel characteristics. We evaluated the act of available transmission modes in LTE. However, performance analysis can be done straightforward using evaluation of LTE. …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 2, 2018 · pp. 14–22 Read article
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Modified Multiple Sub-blocking PTS Technique for Reduction in PAPR in OFDM System
Abstract: OFDM (Orthogonal frequency division multiplexing) is a multi-carrier modulation technique which provides better bandwidth efficiency at high data rate but the problem is it increases the PAPR. This increase in PAPR leads to loss of signal and in order rectify it cost of amplifiers has to be increased. Therefore, peak-to-average power reduction (PAPR) reduction is an important issue which is required to be solved. PAPR can be reduced by using …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 2, 2018 · pp. 23–29 Read article
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NEWLEACH: Enhanced LEACH Energy Efficient Approach in WSN
Abstract: ABSTRACT Depending on the existence of the sensor node in any WSN network life, proper load balancing is therefore very helpful to improve network. Cluster head is selected such that it should be near to the base station and have maximum residential energy than other cluster-specific nodes. Size of cluster is controlled by using location-based cluster joining methods such that nodes select their nearest collection head based on the signal …
Published in International Journal of Broadband Cellular Communication · Vol. 5, Issue 1, 2019 · pp. 5–13 Read article
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Massive MIMO Technologies: A Review
Abstract: This paper discusses the study and exploration of massive Multiple-Input Multiple-Output (MMIMO) wireless access technology spurred by the global bandwidth shortage in the wireless communication sector (MIMO). Massive MIMO is a major enabling technology for next-generation networks that combines antennas at both the transmitter and receiver to enable exceptional spectrum and energy efficiency with little processing. The effective deployment of 5G—and beyond—networks to realise diverse applications of the intelligent sensing …
Published in International Journal of Broadband Cellular Communication · Vol. 7, Issue 2, 2021 · pp. 21–27 Read article
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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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Beyond Words: Exploring the Boundaries of Text-to-Speech Technology
Abstract: This work presents a novel, effective, and economical method for turning text graphics into audio information in real-time. This method enables visually challenged individuals to efficiently interact with computers through a voice interface. Text extraction from color photographs is a tough computer vision task. Text-to-speech conversion uses OCR technology to convert English alphabets and numbers in images into voices. Of course! The main goal of real-time speech-to-text translation is the …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 2, 2023 · pp. 1–5 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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Design of Very Low Losses and Low VSWR Strip Antenna for Wireless Communication
Abstract: The patch antenna is now compact size, good profit and great quality. Antenna is rectangular microstrip patch antenna (RMPA), the basic property of the signal design, return Lawson, directivity, VSWR, and the VSWR antenna has been discussed, but this paper of antenna is very high in bandwidth, Wireless communication requires very compact antenna, This paper presents compact c-band antenna design for communication on 4GHz, radiation patterns and bandwidth, VSWR is …
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 2, 2017 · pp. 6–14 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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Controller for Higher Order DC-DC Converter
Abstract: ABSTRACT Conventional boost converter is having two energy storage elements (one capacitor and one inductor). So, it is usually called as second order boost converter. It operates under two modes. In the first switch is on and the diode is off due to which inductor current rises linearly. The rate of inductor current will be in the ratio of input voltage to the inductance. Diode blocks the capacitor from being …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 19–23 Read article
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Closed Loop Response of Higher Order DC-DC Converter
Abstract: ABSTRACT Converter circuits which are used in power electronic systems for changing the dc voltage from one level to the other. Switching devices are utilized for processing energy from input to output. They have come across many types, some of them are employed for increasing the output voltage and some are utilized for decreasing the output voltage and some of them are applied for performing both the operations within the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 24–28 Read article
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Fuzzy Basis based Network Model
Abstract: ABSTRACT Fuzzy basis is applied to develop a new network model. This network model performs compactly, efficiently and securely. The new protocol is proposed in this paper. This protocol lies with the said advantages. The formulation of the network comprises with the group theory and its generalization based on the fuzzy classification. The fuzzy basis follows the subgroup properties over the divisibility theory. The proposed model achieves the said goals …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 8–12 Read article
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An Application of Genetic Algorithm in Data Analysis
Abstract: ABSTRACT Genetic Algorithm (GA) is applied to analyze the data. This paper presents the significance of GA in data analysis. The prediction, optimization, generalisation, connectedness, compactness and boundedness are the key advantages of this application. GA based data analysis considers the generation of the homomorphic data. This data is the filtered data but useful for the further analysis contained minimum errors. Keywords: Data analysis, GA Cite this Article: Swati Jain, …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 1–7 Read article
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New Data Analysis Method based on L2-Metric over Fuzzy Logic and Genetic Algorithm
Abstract: ABSTRACT L2-Metric is studied over Fuzzy Logic and Genetic Algorithm for analyzing the data. The characterization of L2-metric is generalised over the fuzzy logic and genetic algorithm by isomorphism. This paper presents a new technique of data analysis by Genetic Algorithm (GA), L2 metric and Fuzzy Logic. GA is the process for generating the best variable for the next operation. The data of student’s academic performance is studied as the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 1, 2019 · pp. 13–18 Read article
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Image Processing and Restoration Through a Base Image – A Review
Abstract: ABSTRACTDigital imaging systems had been widely used for many applications including customer photography, microscopy, aerial images, astronomical imaging, and many others., their output photographs/movies frequently suffer from spatially various blur caused by lens, transmission medium, publish processing algorithms, and digicam/item motion. Measuring the amount of blur globally and regionally is a critical problem. it can assist us in getting rid of the spatially various blur and enhancing the visual of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Simulation, Analysis, and Stability Using Matlab of Photovoltaic Solar Power System
Abstract: ABSTRACTA worldwide installation of solar photovoltaic (PV) systems was observed. It is determined mostly through demand to "clean" power generation for future mixed power systems connected through large no. of power electronics converters, grid-based PV systems will be also a very active player. There have been stringent demands on the complete PV network (NW) to accomplish effective and efficient PV power generation. In return, it advances power converter technology development …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 20–30 Read article
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Survey & Analysis of Solar Photovoltaic Power System
Abstract: ABSTRACTSolar oriented power, beyond question, is the cleanest vitality on the planet & is being utilized as a sustainable power source since years prior. Private that utilizations solar oriented power their elective power source will carry benefits toward them. the principal objective of this venture is toward overview & build up the nearby planetary group. framework tracks highest power of light. At point once authority of light is retreating, this …
Published in International Journal of Digital Communication and Analog Signals · Vol. 5, Issue 2, 2019 · pp. 37–43 Read article