Search
1992 articles for “Keywords”
-
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
-
E- Learning
Abstract: The information technology affects the people, the process and the productivity of the organization. It’s a strategic business decision and not a financial decision to be taken the least cost approach. Information Technology acts as a vehicle, to handle the management education. The information technology decision is also influenced by student’s factors. The choice of information technology is made on the basis of the ability of the students in the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 1, 2015 · pp. 23–28 Read article
-
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
-
Sanskrit E–Learning
Abstract: Sanskrit e-learning is a development we are scheduling to implement. We are trying to tune our training program with latest academic trends in India and rest of the word. In this article we are discussing issues involved in traditional learning, present classroom learning and e-learning. The objective is to show Sanskrit in e-learning environment. As customary preparing of Sanskrit have two sections. One section is similar to classroom showing and …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 30–34 Read article
-
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
-
A Review on Fourth Generation Technology
Abstract: The always expanding development of client demand, the generation of wireless mobile communication systems and the rise of new mobile broadband innovations available have conveyed analysts and commercial enterprises to an exhaustive reflection on the fourth generation (4G). A practical meaning of 4G got from another client driven procedure that considers the client as the “foundation” of the outline. Along these lines, the principal client situations that certainly uncover the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 1, Issue 2, 2015 · pp. 35–39 Read article
-
DC Voltage Regulation of UPFC Using Artificial Neural Network Controller
Abstract: A feed forward Artificial Neural Network (ANN) with back propagation control is proposed to remove the peak over shoot of the DC capacitor voltage used in Unified Power Flow Controller (UPFC). Proposed ANN controller is tested for the UPFC with wind energy conversion system connected to grid using MATLAB/SIMULINK and the results are compared with the PI controller. From the results, it is clear that ANN controller helps to regulate …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 13–20 Read article
-
A Novel Energy-Efficient Min–Max Optimization (NEMO) With RSA Security in Wireless Sensor Networks
Abstract: A novel energy-efficient min–max optimization (NEMO) is proposed to improve the data delivery performance and provide security in WSN. The NEMO scheme is applied in the virtual grid environment to periodically collect the data from source node to the mobile sink through the cell headers. Here the movement of sink is in controlled fashion and collects the data from the border line cell headers. For efficient data delivery fruit fly …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 1–12 Read article
-
Synchronized and Asynchronized Comparative Analysis Channel-Hopping-Based Communication Rendezvous In Cognitive Radio Networks
Abstract: Rendezvous is an essential operation for a cognitive users to establish communication links in cognitive radio networks (CRNs). To ensure the rendezvous in limited time, every single existing rendezvous algorithms create CH (channel-hoping) successions utilizing the entire channel set and endeavor meet on each of the channels (i.e., both accessible channels and unavailable channels). We will present ETCH, productive channel-hopping-based communication rendezvous protocols for CR systems. ETCH protocols incorporate SYNC-ETCH …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 21–26 Read article
-
Unified Communication
Abstract: Unified communication will be very helpful in daily life for different puposes. It may be used in different ways for communication. It can be excellent technical service for business. It will be necessary to prepare an organization for success. Keywords: augmentation, deployment, interoperability, real time communication, transactional applications
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 27–30 Read article
-
A Technical Review on Comparison of Speech Enhancement Algorithms
Abstract: The use of mobile speech communication devices has increased by manifold. Mobile communication technology is providing us the mobility and exhibility to communicate irrespective of place and time. The result is that the mobile voice communication systems are often used in high acoustic background noise environment. In such circumstances speech communication suffers from lack of pleasantness and/ intelligibility. To make voice communication intelligible and pleasant in such noisy environments, we …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 31–39 Read article
-
Impact Analysis of Big Data Prediction and Big Data Analysis in Distributed Environment
Abstract: This paper primarily focuses on “Data Prediction and Data Analysis in Distributed Environment”. Initially introduction regarding Data Prediction, Data Analysis and Distributed Environment has been discussed. Afterwards, we have accumulated case studies which prove the necessity of the concerned topic. Later, in this paper various parameters are marked down which prove to be great assets. The concern of growing data and the importance of its prediction and analysis motivated this …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 40–45 Read article
-
Android Marshmallow: An Upgraded Way to Explore Smartphone
Abstract: Whenever a user wants to explore anything, an operating system provides him with the results based on the things he needs to manage in a smartphone. So, there are various operating systems which can manage and gives the user a platform to run all the software’s and per the hardware requirements needed. Android marshmallow is one such OS. It is an upgraded way to manage your smartphones in a bit …
Published in International Journal of Digital Communication and Analog Signals · Vol. 2, Issue 1, 2016 · pp. 46–49 Read article
-
Wireless Network Model: From Analog to Digital
Abstract: The directions to propose new frontiers in Wireless Network (WN) are designed in this paper. The methodologies are discussed by its scientific development. The flow to research on wireless security and efficiency are presented in this paper. The performance analysis is referred as the practical WN protocol. The high data rate has been increasing since the initiation of WN. The nodes, wireless and channels are the key terms over the …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 29–38 Read article
-
A Review of Video Compression Technique of an Efficient Rate-Distortion
Abstract: The digital video compression technology has been gaining popularity for many years. Today, when people enjoy HDTV (high-definition television), movie broadcasting through the Internet, or the digital music, such as MP3, the convenience that the digital video industry brings to us cannot be forgotten. All of these should attribute to the advances in compression technology, enhancement on mass storage media, or streaming video/audio services. Most rate-distortion optimized division way of …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 1–8 Read article
-
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
-
Efficient Energy Management in Wireless Sensor Network
Abstract: This paper studies the impact of node heterogeneity of wireless sensor networks that are hierarchically clustered in terms of energy. Some nodes, in this network become cluster head and aggregate the data of fellow clusters and then transmit it to the sink. It is expected that a level of the number of inhabitants in sensor hubs is outfitted with extra vitality assets this is a wellspring of heterogeneity which may …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 17–23 Read article
-
Short Review on the Electronic Properties of High Electron Mobility Transistors for the Applications in Digital Communication
Abstract: In this review work, author has briefly reviewed on the relevant electronic properties to control the electrical properties of high electron mobility transistors (HEMTs). The electrical characteristics are reviewed corresponding to the microelectronic and Nanoelectronic HEMTs from the miniaturization point of view. Also, the effects of aluminium mole fraction, doping concentration and nano-layer thickness to control the drain current are reviewed. This work may be helpful to fabricate the electronic …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 24–28 Read article
-
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
-
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