All articles
612 articles
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PAPR Reduction in OFDM Using DCT Precoded SLM Technique
Abstract: Orthogonal frequency division multiplexing (OFDM) is a particular form of multi-carrier modulation. OFDM is a combination of modulation and multiplexing which is robust against the multipath effect, intersymbol interference and high spectral efficiency. However, peak-to-average power ratio (PAPR) is a major drawback in the system since this leads to the distortion problem in the linear devices such as the power amplifier (PA). Thus, the PAs require a back-off which is …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 1, 2018 · pp. 33–39 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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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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Methodologies and Bioengineering Applications of Microfluidic Laboratory-on-a-Chip Systems
Abstract: Any microchannel has at least one of the height, width, diameter or length having the dimension of less than one millimeter. Microfluidics is the subject dealing with the movements of liquid or gas inside the microchannels. The principles of microfluidics are highly used in the microfluidic lab-on-a-chip systems to achieve the desired operation. In the last few years, the microfabrication methodologies are highly improved to fabricate the microfluidic lab-on-a-chip systems …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 1–3 Read article
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Modified E and W Shape Antenna Designs to Boost Wireless Signals
Abstract: Research article presents E-shaped antenna in wireless communication. GA Algorithmic procedure has been implemented with enhancement. The Enhanced GA procedure increases bandwidth. Method of Movement (MOM) has been employed on 1.8–2.6 GHz for carrying out optimization. Fuzzy approach has been taken up in recombination of next generation antenna development. GA procedure assist in enhancing design of E shape antenna. A miniature model antenna for frequencies ranging from 1.8 to 2.37 …
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 42–47 Read article
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Denial of Service Attacks in Wireless Networks
Abstract: During the past decade, the speed and reliability of communication over wireless network have been increased severely. One region of great interest in distributed system is wireless network that allows collaboration in real time. Wireless networks allow user to communicate and transfer data with each other without any wired medium between them. Denials of service attacks are really dangerous in wireless systems. This paper provides a survey of these attacks.
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 1, 2018 · pp. 34–39 Read article
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Tower Recovery Devices: Ensure Seamless Connectivity in Case of Natural Disasters
Abstract: Cellular communication is an integral part of daily life, and its absence brings the world to a standstill. Natural disasters are calamities which could happen anytime and disrupt connectivity by bringing down cell phone tower antennas which are placed high above the ground. Now, each of these towers is interconnected by the excess network via backhaul devices, and the backbone network that enables these devices is heavily fortified. We propose …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 1, 2018 · pp. 21–33 Read article
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Bio Impedance Technology and Measurement Using Sensitized Garments- as Review
Abstract: Bio impedance has the potential for playing an important role in this scope, especially because of its relatively reliable, electrode-based sensing principle and its broad range of applications. On the other hand, there are also some challenges for the successful exploitation of this technique in a wearable device, like the reduction of power consumption and the control and optimization of the measurement for a specific application using a wearable electrode …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 16–23 Read article
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A Novel Approach for Text Sentimental Analysis in Social Network
Abstract: This study provides an overview and examine the sentimental analysis of twitter data. Sentiment analysis is one of the fastest growing research area in computer science, making it challenging to keep track of all the activities in the area. In this study, we explore the effect of applying sophisticated negation scope detection to twitter sentiment analysis. Sentimental analysis refers to the task of natural language processing to determine whether a …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 10–15 Read article
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OREO: An Advance Android Technology
Abstract: Android is a software stack for mobile devices that includes an operating system middle ware and key applications. Android is a software platform and operating system for mobile devices based on the Linux operating system and developed by Google and the Open Handset Alliance that allows developers to write managed code in Java-like language that utilizes Google-developed Java libraries but does not support programs developed in native code. In modern …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 4, Issue 1, 2018 · pp. 1–5 Read article
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An Efficient Ultra-Wideband Bow-Tie Antenna
Abstract: In this paper, we design and analysis the result of the bow tie antenna with ground slotting. The entire dimensions of the bow tie antenna are 25mm × 32mm. The proposed antenna is suitable for WLAN 3/4.5/5 GHz bands. Antenna is simulated using high frequency structure simulator (HFSS) V.13 which is based on finite element modeling (FEM). The antenna characteristics such as return loss, radiation pattern and VSWR of the …
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 6–10 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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Wireless Sensor Networks-Based Intelligent Transportation System
Abstract: Rising private vehicles in urban areas resulting more traffic and pollution in cities which requires an intelligent transportation system based on wireless sensor networks. Intelligent transportation systems (ITS) plays an important role in management of traffic. Wireless sensor networks is an emergent technology with an effective potential to overcome these difficulties and improves ITS. We will discuss their architectural and engineering challenges. The description of sensor node designed for sensing …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 1, 2018 · pp. 16–20 Read article
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An Overview of Wireless Sensor Network Applications and Related Issues
Abstract: WSN or wireless sensor networks are used in many field like military, health care, biological, environmental monitoring, home applications and many other commercial applications. Wireless sensor networks are capable to collect the information as wireless sensor networks are the collection of sensor nodes. Sensor nodes have the capability of sensing, actuating and relaying on the collected data or information. This paper presents the overview of wireless sensor network (WSNs) application …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 1, 2018 · pp. 10–15 Read article
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Vital Role of Wireless Sensor Network in Healthcare
Abstract: Today wireless sensor networks technology has become very popular and showing its remarkable advantages in medical area. In medical healthcare, WSN are considered as a key research area. Here, we have categorized the sensor networks for healthcare system which are: Collection of long-term databases of clinical data, Monitoring of patients in clinical settings, Home and elderly care center monitoring for chronic and elderly patients. Through which we can easily observe …
Published in International Journal of Broadband Cellular Communication · Vol. 4, Issue 1, 2018 · pp. 1–9 Read article
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Design and Analysis of S-Band Microstrip Patch Antenna by Using Tunable Metamaterial
Abstract: In this article, we study about the new approach of tunable metamaterials and design a suitable structure for a patch antenna for S-band in which we are compare the return loss, directivity and the gain of the antenna. All results of the simulation are done by CST Microwave studio simulation software.
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 1, 2018 · pp. 1–5 Read article
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Advanced Low-Cost Voice Recognition-Based Smart Home/Office Automation Using Android
Abstract: Now a day’s so many useful technologies are coming out to make our life style more comfort, luxurious and secure. Especially in mobile field so many applications are being developed to give us more information and entertainment. This project is designed with combination of two latest and most demanding technologies that are Embedded Systems and Android. Android is a Linux based operating system designed primarily for mobile devices and it …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 2, 2017 · pp. 20–28 Read article
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Fuzzy Logic for Temperature Control Process
Abstract: A closed loop control system incorporating fuzzy logic has been established for a temperature control process. A unique fuzzy logic controller structure with an efficient realization and a small rule base that can be easily implemented in temperature control process. MATLAB simulations are supported out and response is attained for fuzzy logic.
Published in International Journal of Digital Communication and Analog Signals · Vol. 3, Issue 2, 2017 · pp. 21–25 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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Three-Dimensional Cubic Display and Lattice Analysis Using 89C51 Microcontroller
Abstract: A three-dimensional display has been presented in this paper which is driven by a microcontroller. A new form of display has been introduced in the LED arena. Any size cube of A*A*A can be effectively implemented which are cheap as well as rugged. A three-dimensional mosaic of light emitting diode is formed in a cube which is comprised of light emitting diodes arranged in the dimensional matrix. Cheapness and ruggedness …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 2, 2017 · pp. 17–19 Read article