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897 articles for “wired and wireless”
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Compact Printed Coplanar Waveguide-fed UWB/Bluetooth Integrated Antenna for Wireless Personal Area Network Communication
Abstract: AbstractA compact integrated Bluetooth and ultra-wideband (UWB) coplanar waveguide (CPW)-fed antenna is presented and discussed. In this paper, the designed antenna has got specialty having wide coverage of Bluetooth and UWB frequency band both successfully giving optimum performance and above all small size. It has been designed very compact retaining all the standard parameters like VSWR, radiation pattern and gain to the acceptable level. The integrated dual-band antenna covering 2.4–2.484 …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 9–14 Read article
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A Multi-Hop Power Adaptive MAC Protocol using Fuzzy Logic for Wireless Networks
Abstract: AbstractPower-based connectivity is a recent research topic in ad hoc networks. Implementing power control mechanisms is essential to enhance the lifetime of the network, and also to improve the throughput, find cost-effective routes and spatial reuse. In this paper, MAC protocol is used for implementing coordination functions and power-control mechanisms using fuzzy rules. Fuzzy rules are generated by upper layers of the network layer using two input variables such as …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 3, 2013 · pp. 1–9 Read article
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Design and Analysis of I-Slotted Rectangular Microstrip Patch Antenna for Wireless Application
Abstract: AbstractThis paper presents a novel design of an I-slotted patch antenna with compact nature and the study of various antenna parameters. The antenna is fed by the inset-feeding technique. The proposed patch antenna is designed and simulated on IE3D simulation software (Zeland program manager 9.0). The main aim of the proposed work is to design a large-bandwidth antenna with compact size. The proposed microstrip antenna has a wide bandwidth covering …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 3, 2013 · pp. 36–40 Read article
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Ubiquitous Computing –Remote Patients Healthcare Devices using Wireless Technology
Abstract: ABSTRACTThe evolving concepts of pervasive computing, ubiquitous computing and ambient intelligence are increasingly influencing health care. The goal of this paper is to monitor the remote patient’s health status and provide asecure healthcare system using GSM technology with the help of wearable computers .To achieve this vision, several technological issues have to be solved: (i) Body sensors to monitor vital functions like ECG, BP andBody Temperature have to be developed; …
Published in Journal of Computer Technology & Applications · Vol. 3, Issue 2, 2012 · pp. 35–41 Read article
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A Review on Sybil Attack in Wireless Sensor Network Using Different
Abstract: Disseminated networks, not including trusted identities are predominantly susceptible to sybil attacks, where an opponent generates numerous bogus identities to the operation of weakened network. Here, we reward sybil defender, a sybil security scheme that impacts the network topologies to look after towards sybil attack in social communities. Taking into account performing a restricted amount of random walks within the social graphs, sybil defender is proficient and versatile to huge …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 3, Issue 2, 2016 · pp. 11–16 Read article
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Wide Band Circle Slotted Inset Fed Microstrip Patch Antenna for Wireless Application
Abstract: A novel high gain, wideband circle slot-loaded microstrip patch antenna is presented in this paper. The proposed design is realized using inset linefeed method. The proposed microstrip antenna has a wide bandwidth covering the range from 1.033–2.859 GHz. By using simple inset linefeed technique and by introducing circle slot, the proposed antenna on 2 GHz operating frequency showing the bandwidth 93.83% having return loss −27.57 dB, gain 7.1 dBi and …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 1, 2014 · pp. 6–10 Read article
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Wide Band Open Spanner Patch Antenna for Wireless Local Area Network Application
Abstract: This paper presents the enhancement of bandwidth of a microstrip antenna using slotted design fed by Microstrip line feed. The main aim of proposed work is to obtain large bandwidth with reduced size. The proposed microstrip antenna has a wide bandwidth of 48.99% covering the range from 1.806-2.978 GHz which is best suitable for WLAN application. The proposed patch antenna is designed and simulated on the Zeeland IE3D software. The …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 21–25 Read article
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IoT-Based Smart Agriculture System for Real- Time Crop Monitoring
Abstract: This review presents an accessible architecture for an IoT-based smart agriculture system that combines field sensors, low-power embedded electronics, wireless communication, cloud or edge data processing, farmer dashboards, and guarded actuation. The sensing layer focuses on soil moisture and temperature, ambient temperature and relative humidity (RH), light, rainfall, leaf wetness, water flow, and optional soil chemistry measurements. The communication layer examines Wi-Fi, Zigbee, LoRaWAN, and cellular Internet of Things options, …
Published in Recent Trends in Sensor Research & Technology · Vol. 13, Issue 3, 2026 Read article
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The Potential of Li-Fi for High-Speed Underwater Data Transfer
Abstract: Recently, there has been a growing interest in using underwater communication (UC) to monitor obstacles and marine life in oceans. Unlike conventional methods which struggle due to the absorption of radio waves in water, Li-Fi technology has emerged as a promising solution. Li-Fi utilizes light to transmit data, making it effective for underwater communication as light can penetrate deep into the ocean. In a recent study, researchers successfully demonstrated real-time …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 2, Issue 2, 2024 · pp. 10–17 Read article
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Automatic Bluetooth Controlled Shutter System Using Microcontroller and Mobile Application
Abstract: Automation has become an essential part of modern engineering system. Manual shutter systems used in shops, garages, and industries require physical effort and time. To overcome these limitations, wireless control systems using Bluetooth technology have been developed. Bluetooth-based automation systems allow communication between smartphones and embedded systems. These systems are widely used due to their low cost, low power consumption, and ease of integration. This paper focuses on designing a …
Published in International Journal of Electronics Automation · Vol. 4, Issue 2, 2026 Read article
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Use of the Visible Spectrum of Light and Light Transmission: A Review
Abstract: Almost everyone uses the internet today, either over a wired or wireless network, to complete their tasks. Everyone, including businesses, organisations, entrepreneurs, and institutions, is concerned about accessing the right information at the right time and place, so internet speed is a significant issue. Then you need technology, a wide range of channels, and quick internet connectivity. According to 1EEE 802.11n specifications, wireless fidelity (Wi-Fi) provides a speed of 150 …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 3, 2022 · pp. 31–36 Read article
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Vehicle to vehicle communication using NRF24L01
Abstract: Vehicle-to-Vehicle (V2V) communication enables nearby vehicles to exchange information wirelessly to improve road safety and reduce accidents. This review focuses on the use of the NRF24L01 wireless transceiver module as a low-cost solution for V2V applications. The module operates in the 2.4 GHz ISM band and can be interfaced with microcontrollers such as Arduino for wireless data transmission. Sensors can be used to detect conditions such as obstacles, sudden braking …
Published in Recent Trends in Electronics Communication Systems · Vol. 13, Issue 3, 2026 Read article
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Traffic Management System using Divider Shifting Mechanism
Abstract: This paper addresses traffic congestion through innovative solutions, including movable dividers that adjust road configurations and lanes dynamically. Real-time monitoring, using sensors and cameras, coupled with advanced algorithms, optimizes traffic flow by reallocating lanes according to changing conditions such as rush-hour congestion or accidents. Additionally, the system integrates variable speed limits and dedicated lanes for pedestrians and cyclists to enhance safety and accommodate diverse transportation modes. Centralized integration with a …
Published in Journal of Production Research & Management · Vol. 14, Issue 1, 2024 · pp. 21–28 Read article
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Adaptive Traffic Control Systems: Enhancing Urban Mobility through Real-Time Traffic Management
Abstract: Traffic congestion is a ubiquitous challenge in urban areas, necessitating innovative solutions to improve transportation efficiency and alleviate gridlock. Traditional traffic signal control methods often prove inadequate in dynamically adapting to fluctuating traffic conditions, leading to increased travel times, fuel consumption, and emissions. In response, adaptive traffic control systems have emerged as a promising approach to mitigate congestion and enhance traffic flow in urban environments. These devices dynamically modify signal …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 2, Issue 2, 2024 · pp. 37–45 Read article
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Enhancing Terahertz Patch Antennas: The Role and Impact of Graphene
Abstract: Terahertz (THz) communication systems are gaining increasing attention because of their ability for high-speed wireless data transmission, making them suitable for the 6th-generation wireless applications. Patch antennas, commonly used in these systems, play a crucial role in signal transmission and reception. There are various types of conductive materials available for patch antennas, but the unique characteristics of graphene make it a suitable choice. This study explores the significance and contribution …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 41–51 Read article
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Review Paper On Lifi Technology
Abstract: Light Fidelity is the abbreviation for Light Fidelity. The concept is relatively new, having been introduced by German scientist Harald Haas at the 2011 TED Global Talk on Visible Light Communication (VLC). Li-Fi is a wireless optical networking system that transmits data using light emitting diodes (LEDs). Visible light communication (VLC) technology is referred to as Li-Fi. 802.15.7. IEEE 802.15.7 is a wireless communication technology based standard that is high-speed, …
Published in Journal of Microelectronics and Solid State Devices · Vol. 8, Issue 2, 2021 · pp. 1–6 Read article
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Comprehensive Study of Least Squares Estimation in Fast Fading MIMO-OFDM Systems
Abstract: MIMO-OFDM technology is now the foundation for modern wireless communication systems, allowing dramatic improvements in spectral efficiency, power efficiency, and transmission rate. On the other hand, the least accurate channel estimation is still a critical task, especially when they are in fast-fading environments. This study gives a comprehensive survey of LSE-based approaches and their applications on different fast-fading channel models for MIMO-OFDM systems. Techniques like Pilot Assisted Channel Estimation (PACE), …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 1, 2025 · pp. 13–21 Read article
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Li-Fi Visible Light: Data Transfers via LED Technology
Abstract: Li-Fi (Light Fidelity) is a cutting-edge technology that uses visible light to communicate data wirelessly, like how Wi-Fi uses radio waves. Light Emitting Diodes (LEDs) are the principal source of light in this system for information transmission. To transmit data, the LED light blinks on and off very quickly, quicker than our eyes can detect. After then, a sensor records these light signals and transforms them back into data that …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 1, 2025 · pp. 1–7 Read article
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Radio Frequency Next-Generation Advances
Abstract: Radio frequency (RF) technology is a key enabler for modern wireless communications, driving the evolution of telecommunications, healthcare, aerospace, defence and the Internet of Things (IoT). Faster, more reliable and energy-efficient communication systems have been developed at a rapid pace due to recent discoveries in RF engineering. This article discusses novel advancements in RF technologies including enhanced antenna design, millimeter-wave communication, software defined radio, smart spectrum management, and RF-based sensor …
Published in International Journal of Radio Frequency Innovations · Vol. 4, Issue 1, 2026 Read article
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On Optimized Transmission by Trace Theory
Abstract: Abstract: The objective of this study is to design efficient wireless information system. The Trace based optimization technique is applied to achieve this goal. The linear programming-based formulation of the wireless environment is discussed. An analysis of this formulation is also presented in this research. The trace and average information are studied with respect to the time and space. Keywords: Wireless Information System, TraceCite this Article Vijayant Verma, Abhishek Badholia, …
Published in Recent Trends in Sensor Research & Technology · Vol. 6, Issue 1, 2019 · pp. 22–28 Read article