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897 articles for “wired and wireless”
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Emerging Trends in Applications of Semiconductor Alloys in Wireless Communications
Abstract: AbstractArsenide semiconductor alloys provide a natural means of tuning the magnitude of the forbidden gap and other material parameters so as to optimise and widen the application of semiconductor devices. With the advent of small-structure systems, for instance quantum wells and superlattices, the special effects of alloy composition, size, device geometry, doping and controlled lattice strain can be collective to accomplish maximum tunability. In this article, the concepts and ideas …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 1, 2016 · pp. 31–41 Read article
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E-Shaped Microstrip Patch Antenna for High Speed Wireless Local Area Network (WLAN) Applications
Abstract: A microstrip antenna consisting of E-shape radiating patch having low profile, probe-fed is designed and proposed for wireless local area networks (WLAN) applications. All countries use different WLAN, as the antennas available are not able to cover all the standards. This study aims to design a smallest antenna with better polarization covering all high speed WLAN standards ranging from 4.47 to 5.82 GHz. The patch antenna designed on low cost …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Near Field Wireless Powering of Implantable Devices
Abstract: A new WPT system for biomedical applications has been investigated in this paper. First, an implantable receiving antenna with enhanced gain is studied. Then, a transmitting antenna array which can maximize the PTE of the WPT system is designed together with the receiving antenna and head model. Under the transmission distance of 150 mm, the PTE of the designed WPT system reaches a maximum value of 0.28% at the center …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 1, 2019 · pp. 44–50 Read article
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Design and Implementation of 2nd Order Gm-C IF Tuning Filter Operating at 900 MHz and 88–108 MHz Wireless System for Multi Standard Receiver
Abstract: This paper deals with design and optimization of folded cascode OTA-C filter, which works for frequencies that lead to a base band circuit design for RF application, is based on transistor sizing methodology and Simulation results are performed using SPICE software and BSIM3V3 model for CMOS 0.18 μm process, show that the designed folded cascode OTA has a 52 dB DC gain and provides a Unit gain bandwidth of around …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 1, 2014 · pp. 8–24 Read article
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ED-SS based Cognitive Radio (CR) over Rayleigh Fading Channel and the Performance of Optimized Cooperative Spectrum Sensing Technique for Modern Wireless Communications
Abstract: Cognitive Radio (CR) has indeed been shown to be a superior way to address the issue of spectrum scarcity in which every wireless system occupies the limited bandwidth spectrum (LBS) allotting to the licensed users. Spectrum holes, which are approximated using spectrum sensing, occur when this LBS is empty in a certain location at a specific moment (SS). The SS is the main objective of CR and various SS techniques …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 1–12 Read article
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Review on Optimization of Wireless Optical Communication System
Abstract: AbstractWireless optical communication [WOC] is a recently emerging field, which gives solution for the drawbacks of radio and microwave communication issues. Optical fiber communication has already developed and accepted by its high performance such as high data capacity, speed etc. But WOC experiences atmospheric turbulence problems and distant dependent path loss. And scintillation and aerosol particles (rain, haze, fog and drizzle) bring this major challenge for the WOC system by …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 9–19 Read article
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Consistent Tracking of Goods Throughout the Transportation Chain Based on Internet of Things and Wireless Sensor Network
Abstract: Consistent tracking of goods throughout the transportation process is a critical task for cargo-owners, transportation companies and the receiver customers who would get their desired belongings. In this paper, we have proposed a Wireless Sensor Network and cloud server based goods consistent tracking system throughout the transportation chain. Our purposed system does not only monitor the status of the transport vehicle by Waspmote mounted on it, but it has smart …
Published in Journal of Communication Engineering & Systems · Vol. 7, Issue 3, 2017 · pp. 36–44 Read article
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Performance Analysis of 802.11 MAC Protocol of Wireless Networks under Misbehaving Condition
Abstract: ABSTRACT In this paper the performance of Mac Layer is seen when the number of nodes which are misbehaving increases in the wireless networks. Mobile ad hoc networks depends on the network nodes cooperation in forwarding packets due to the lack of centralized authority. A network node may incline not to cooperate with other nodes in order to save its resources due to selfishness. Here qualnet 5.2 is used for …
Published in Journal of Communication Engineering & Systems · Vol. 2, Issue 2, 2012 · pp. 26–32 Read article
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GSM based Multiuser E-Notice Board using Wireless Technology
Abstract: AbstractWireless technology is now taking over the entire world. It has helped in shrinking the world. GSM technology is the most popular wireless technology which is now fastest growing technology in the electronic industry. Advancement in technology has brought about digitization to the core. Even the billing system, attendance system, health monitoring, etc., have all got digitized and so are the advertisement boards and the announcement boards. The existing system …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 13–20 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
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Wireless Sensor Network: A Review
Abstract: Abstract The intersection of shoddy wireless communication, detecting and calculation has created another gathering of keen gadgets and by utilizing a great many these sorts of gadgets in self-arranging net-works has shaped another innovation that is called remote sensor systems (WSNs). WSNs utilize sensor hubs that set in open regions or in broad daylight places and with a tremendous number that makes numerous issues for the specialists and system fashioner, …
Published in Journal Of Network security · Vol. 5, Issue 3, 2017 · pp. 26–29 Read article
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Wireless Intelligent Accurate Bridge Deck Crack Inspection and Mapping
Abstract: One of the important tasks for building maintenance is building deck crack inspection. However, the inspection result in human analysis is less accurate in nature. So, a crack inspection system that uses a camera-equipped mobile robot to collect images on the building deck has been proposed. In this method, the Laplacian of Gaussian (LoG) algorithm is used to detect cracks and a global crack map is obtained through camera calibration …
Published in Journal of Advancements in Robotics · Vol. 3, Issue 2, 2016 · pp. 24–29 Read article
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Light Fidelity: The New Wireless Communication Technology
Abstract: Light Fidelity (Li-Fi) is the latest 5G technology in wireless communication. It is currently becoming more popular as it overcomes the demerits of Wi-Fi and is more energy-efficient. The Wi-Fi radio frequency range is insufficient as the number of users is increasing day by day. To meet this growing demand, the visible light frequency band is used in Li-fi. It makes use of LED (light emitting diode) lights in order …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 1, Issue 1, 2014 · pp. 20–23 Read article
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A Survey on Congestion Scenario in Adaptive Routing Protocol for Wireless Network
Abstract: AbstractMobile ad hoc network is a gathering of remote hubs that can progressively be set up anyplace and at whatever time to trade data without utilizing any previous system foundation. It is a self-sorted out and self-configurable system where the versatile hubs move arbitrarily. Directing has dependably been one of the key difficulties in Mobile ad hoc networks and the test turn out to be more troublesome when the system …
Published in Journal of Advances in Shell Programming · Vol. 4, Issue 1, 2017 · pp. 5–13 Read article
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Committed Squat Series Communication an Emerging Wireless Communication System
Abstract: AbstractDSRC (Dedicated Short vary Communications) could be a documented widespread technology. One in all the most applications of DSRC is RTTT (Road Transport and Traffic Telematics), particularly EFC (Electronic Fee Collection) on tolled roads, bridges or tunnels. Different vehicle-related applications had been envisaged, like automobile parking or fuel replacement automatic payment. These applications were with success developed, deployed and area unit in current use in Portugal. During this paper, we …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 4, Issue 2, 2017 · pp. 25–29 Read article
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Wireless Reliability: Invasion Matter and Explication
Abstract: Abstract: Network protection has become a gambol in our whole international, as each chunk of the enterprise international square measure going digital, as an outcome to bypass these items we tend to square measure adopting numerous methods. Network administrator should maintain track and should update with all recent advances in every software system program and hardware fields to keep at bay the person’s records. Currently, associate afternoon medical aid is …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 3, 2019 · pp. 23–27 Read article
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Design of a Low Cost and Low Power Smart Wireless Sensor
Abstract: The accessibility of minimal expense, low-power and little inserted processors, radios and sensors, incorporated on a solitary chip, is prompting the utilization of remote interchanges and registering for connecting with the actual world in numerous regular citizen and military applications. The advances in the incorporation of complicated remote coordinated items and the expansion in execution and usefulness of the plan apparatuses, the prerequisites and properties of a solitary gadget (sensor …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 9, Issue 1, 2022 · pp. 21–27 Read article
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A Brief Review on Localization in Wireless Sensor Network
Abstract: Wireless sensor devices have a huge range of usage in observation, watch and ward etc. Unlike ad hoc networks, WSNs are limited through sensors’ restricted power, energy and computational ability. Sensor nodes don’t have mondial ID cause of the huge quantity of overhead and giant number of sensors. The responsibility of every sensor node is to recognize the changes in its particular region or area. Localization of a sensor node …
Published in Journal Of Network security · Vol. 5, Issue 1, 2017 · pp. 1–10 Read article
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Compact Circular Slotted Microstrip Antenna for Wireless Communication Systems
Abstract: In this paper, compact broadband microstrip patch antenna with circular slot has beendesigned for various wireless applications suitable in the ranges ofDCS1800/PCS1900/UMTS2100. The designed antenna has been printed on dielectricsubstrate glass epoxy. The Zeland IE3D software is used for the simulation. The return lossbandwidth is of 89.07% covering the frequency range of 1.02 to 2.65 GHz. The experimentalresults are in good agreement with the simulated results and have maximum radiationefficiency …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 1, 2015 · pp. 9–13 Read article
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Implementation of Wireless Biometric Attendance Management System Using Raspberry Pi
Abstract: The attendance is taken in every institute, school, college and library. Traditional approach for attendance is teacher calls student's name and records attendance. It takes time to record the attendance. For each lecture, this is wastage of time. To avoid these losses, we designed a system which is based on fingerprint. This system maintains the attendance records of students. So we designed an efficient module that comprises a fingerprint sensor …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 2, 2016 · pp. 19–25 Read article