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1463 articles for “loss”
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Effect of Outdated CSI in a Multiuser TAS/MRC System over Correlated Nakagami-m fading
Abstract: The TAS/MRC system is a widely accepted technique to reduce the complexity level of a multiuser MIMO system with little reduction in the performance. This increases the practical applicability of TAS/MRC system. In TAS/MRC algorithm the channel state information (CSI) is provided to the transmitter for selection of best transmitting antenna for better system performance. However, two important factors may reduce the performance of the TAS/MRC system considerably, out dated …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 2, 2018 · pp. 38–46 Read article
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Reformation of WLAN Feeler by Incorporating Varactor Diode with Negative Media Structure
Abstract: AbstractIn this manuscript, authors proposed a negative media structure with Varactor diode to reform the rectangular microstrip patch antenna parameter to a great extent. Initially basic feeler was designed and simulated, and then parameters were enhanced by implementing negative media structure. It has been observed that negative media is not sufficient to improve the parameters therefore Varactor diode was introduced to get the required improvement. This proposed design of feeler …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 33–41 Read article
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Performance Analysis of Wireless Propagation Model to Improve Signal Strength and BER for Wireless Mobile Network
Abstract: AbstractWhenever we setup a network, environment properties such as fading, scattering etc. plays a very important role in choosing spectrum and method of propagation. The spectrum deals with frequency range suitable for communication in a particular environment, and the propagation method deal with channel selection, channel sensing and to perform quality communication throughout the network. To achieve quality output from the network, it is necessary to define network under different …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 2, 2015 · pp. 1–7 Read article
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Co-planar Waveguide Circular Ring Microstrip Patch Antenna for WLAN Applications
Abstract: AbstractA printed circular microstrip patch antenna with a four rectangular shape strip and co planar rectangular ground plane has been proposed. Four rectangles of dimensions 4.8mm x3mm are arranged in such a manner to achieve both the WLAN frequency band. The bandwidths of 341MHz and 414MHz are achieved having a resonant frequency of 2.37GHz and 5.45GHz respectively. This antenna is printed on the glass epoxy (FR4 lossy) of dielectric substrate …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 1–6 Read article
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A Study on Wireless Sensor Network Deployment and Lifetime Maximization of Wireless Sensor Nodes in Natural Gas Pipeline Monitoring System
Abstract: AbstractLeakage in Natural Gas Pipeline is a very common problem that may lead to economic losses, environmental hazards and pollution. Therefore, the maintenance and security monitoring of the natural gas pipeline has remained a big concern for many years. In the recent times, implementation of Wireless Sensor Networks (WSNs) has become very popular. This is due to the low cost and sustainability of WSNs. Since, the implementation of WSNs in …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 7–16 Read article
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Human Tracking and Positioning in Semi Outdoor Area using Ultra Sound Positioning System
Abstract: AbstractIn this thesis, we introduced the indoor and semi outdoor location determination problem. The localization accuracy metrics are the mean error per pixel and the room averaged mean error. We have tried to assess the accuracy of the algorithm, as the location and the number of BSs varies, path loss exponent n value changes. By measuring RSS and mean error of our proposed system, it is concluded that the number …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 23–31 Read article
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Performance Analysis of DWT Based OFDM System using SRRC Filter in Mobile Wimax over Fading Environment
Abstract: AbstractWavelets amid its capability to provide simultaneous information in both time and frequency domain, along with minimization of interference and improved bandwidth efficiency, is considered broadly as an efficient approach to replace fast Fourier transform (FFT) in the conventional orthogonal frequency division multiplexing (OFDM) systems. Efficient filter pulses are employed spectrally in such systems in order to mitigate the effect of inter-symbol interference (ISI) as well as satisfy the bandwidth …
Published in Journal of Communication Engineering & Systems · Vol. 7, Issue 1, 2017 · pp. 1–10 Read article
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Cost-Effective Smart Home Automation using Internet of Things
Abstract: AbstractA smart home is a concept of connected inside and outside home services using a network with the help of smart devices. These smart devices can share information enabling proper control and management over the home through network integrations. Portable Internet of Things (IoT) Board is a system that uses smartphones for controlling essential home functions and features of the internet from anywhere around the world remotely. This paper suggests …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 1–6 Read article
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Wavelength Division Multiplexing in Optical Networks Using Radio Over Fiber
Abstract: AbstractThis paper contains a detailed study about WDM (wavelength division multiplexing) optical networks. The bandwidth, speed and loss of signals in communication have a reason to worry in communication systems; WDM makes the possible solution to resurrect the systems of communications with the help of this technology. The issue emerges when the interest for transfer speed in a fiber optic system surpasses the present limit, without requiring any extra fiber, …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 3, 2019 · pp. 12–15 Read article
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Revolutionizing Agriculture: Integrating IoT, Machine Learning, and Image Processing for Smart Farming
Abstract: Precision agriculture, characterized by data-driven decision-making, has revolutionized modern farming practices. This abstract explores the integration of sensor monitoring, machine learning, and image processing to enhance agricultural efficiency and sustainability. In precision agriculture, a network of sensors continually collects vital environmental data, including temperature, humidity, rainfall, sunlight, soil moisture, and conductivity. The real-time data supplied by these sensors empowers farmers to make knowledgeable choices concerning irrigation, fertilization, and pest management. …
Published in Journal of Communication Engineering & Systems · Vol. 13, Issue 2, 2023 · pp. 28–45 Read article
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Making World as More Green and Healthy using Data Mining Techniques
Abstract: AbstractTrees are vital. As the biggest plants on the planet, they give us oxygen, store carbon, stabilize the soil and give life to the world's wildlife. A study from 2017 reveals the information that more than 150 acres lost every minute of every day, and 78 million acres lost every year, yet there is no proper technical solution to identify the places of deforestation and to plant trees on those …
Published in Journal of Computer Technology & Applications · Vol. 10, Issue 1, 2019 · pp. 17–22 Read article
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Wearable Navigation for Blind People
Abstract: ABSTRACT- To help the visually impaired and blind people walk to the destination efficiently and safely in indoor & outdoor environment, a wearable navigation device is developed in this project. The main components of the system are a microcontroller, various sensor, IOT modules. The locating, way-finding, route following and obstacle avoiding modules are the essential components in a navigation system. A set of sensors used to track the path and …
Published in Journal of Computer Technology & Applications · Vol. 10, Issue 2, 2019 · pp. 10–17 Read article
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Information Technology: An Arising Concept in Agriculture Sector
Abstract: AbstractThe agriculture sector plays predominant role in economy of India. Information Technology is an important branch in the field of agriculture as it provides support to the farming community. Agriculture is the backbone of agro industries. IT contributing one third to the national GDP in the Indian economy. Under the changing dynamics of economical and industrial growth, agriculture has to experience changes with new approaches. The agricultural sector has to …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 1, 2013 · pp. 23–27 Read article
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Survey on Cloud Backup and Recovery Techniques
Abstract: AbstractThe need of storing large amount of data in electronic format has been increasing. Cloud computing is such a technology used to store data, backup data and provide disaster recovery services. Cloud will store large amount of data. This stored data can be used whenever required, from anywhere. To avoid the loss of data a backup is created and the data in cloud are stored in it. The purpose of …
Published in Journal of Computer Technology & Applications · Vol. 7, Issue 2, 2016 · pp. 26–35 Read article
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A Deep Survey on Techniques Used to Recognize Locust Based on CNN
Abstract: The major threat in agriculture is insect pests and crop disease. Outbreaks and upsurges of insects can cause huge loss to crop production. Locusts are crop devouring pests found in many parts of the world. Recognition of locusts in early stage helps to prevent the spread of locusts by taking appropriate counter-measures and biological control methods. Initially, locusts were classified and recognized manually which is time consuming and requires taxonomic …
Published in Journal of Computer Technology & Applications · Vol. 12, Issue 1, 2021 · pp. 1–8 Read article
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Pneumonia Detection Using Deep Learning–Convolutional Neural Network
Abstract: Pneumonia disease is associate in nursing infectious and deadly illness in metabolic process that is caused by microorganism, fungi, or a deadly disease that infects the human respiratory organ air sacs with the load choked with fluid or pus. Chest X-rays area unit the common methodology accustomed diagnose respiratory disorder and it wants a health worker to gauge the results of X-ray. The hard methodology of detection of the respiratory …
Published in Journal of Computer Technology & Applications · Vol. 12, Issue 1, 2021 · pp. 9–16 Read article
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Crypto Lending and Hedge Fund Platform (Liquifi)
Abstract: Obtaining loans from traditional financial institutions can be a challenging and time-consuming process that often requires significant collateral. For cryptocurrency holders, liquidating their holdings can be even more difficult due to taxes, transaction fees, and potential losses in invested capital. To address these challenges, we have developed Liquifi, a decentralized peer-to-peer lending platform that utilizes Ethereum's smart contract technology to facilitate secure and cost-effective borrowing and lending. Lenders on Liquifi …
Published in Journal of Computer Technology & Applications · Vol. 14, Issue 1, 2023 · pp. 31–40 Read article
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CPW feed Flexible Antenna for Wireless Applications
Abstract: Flexible Microstrip CPW Feed Antenna using flexible FR-4 substrate is analyzed and presented over here. The Copper is used as conductive material for patch and CPW feed respectively. The performance in terms of return loss, gain, VSWR and radiation pattern is evaluated. The impedance bandwidth and gain of flexible antenna is 20.25% (2.179 GHz-2.665 GHz), 21.44% (3.232 GHz-4.026 GHz) and 1.4 dBi, 0.009 dBi respectively. The flexible property of the …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 6, Issue 3, 2018 · pp. 18–24 Read article
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Design of Lowpass Filter with Improved Roll Off Factor using Coin Shape Fractal DGS
Abstract: This paper presents the design of lowpass planar filter with improved roll of factor. To improve the performance figures of filter such as return loss, roll off factor, compactness, etc. coin shape fractal defected ground structure (DGS) has been embedded in the ground plane of the filter. The proposed filter gives improvement of roll off factor about 5 times as compared to traditional filter design technique. Laboratory prototypes of all …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 1–9 Read article
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Ultra-Wideband Monopole Microstrip Filtenna with Hairpin Structure for Wireless Application
Abstract: Microstrip filtenna for WiMax/LTE and WLAN band has been proposed and presented. This paper presents design of bandpass filter having hairpin structure which is incorporated into the feedline. The FR4 substrate is used for the proposed antenna. The proposed filtenna has been designed and investigated using HFSS simulator. The proposed filtenna operates at 3.2 GHz. From the simulation results, it is extracted that passband of hairpin filter structure is from …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 25–29 Read article