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1922 articles for “communications” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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BER Performance Comparison of Coded Communication Systems under Different Turbulence Coditions of Free Space Optical Channel
Abstract: AbstractThe congestion and the limitations on bandwidths of the radio spectrum have posed a constraint for the growth of radio wireless systems. Wireless optical communication, also known as free space optical communication (FSO), is believed to be a long-term option for many wireless communication applications. Atmospheric turbulence is generally considered to be multiplicative noise source that reduces the capability of receiver to estimate the information contained in the modulated optical …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 1, 2014 · pp. 1–6 Read article
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BER Analysis in Optical Fiber Communication System using Different Optical Amplifiers
Abstract: AbstractThis paper describes the simulation study of losses that occurs in the optical fiber communication system with and without optical amplifiers. The analysis is done in the OPTISYSTEM 16.0 software on the basis of Q-factor, BER and eye height for different optical amplifiers which are Erbium Doped Fiber Amplifier (EDFA) and Semiconductor Optical Amplifier (SOA)Keywords: BER, eye diagram, Q-factor, eye height, SOA, EDFA, OPTISYSTEM 16.0Cite this ArticleArpitha G.A. BER Analysis …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 3, 2019 · pp. 33–42 Read article
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Comparison of Advance Data Modulation Formats in 4×10 Gbps WDM Optical Communication System using YDFA-EDFA and Raman-EDFA Hybrid Amplifiers
Abstract: In this paper, comparison of various advance data modulation formats in 4×10 Gbps wavelength division multiplexing (WDM) optical communication system using various hybrid optical amplifiers (YDFA-EDFA and Raman-EDFA) has been carried out. The advance modulation formats under study include non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), Duobinary return-to-zero (DRZ) and modified Duobinary return-to-zero (MDRZ). The WDM hybrid system has been analyzed over 100 km fiber for 10 Gbps system. It …
Published in Current Trends in Information Technology · Vol. 10, Issue 1, 2020 · pp. 23–29 Read article
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EXPLORING BODY TO BODY COMMUNICATION USING HEALTH MONITOR APPLICATION
Abstract: The paper presents a Advanced technology of communication method called as body to body communication in biomedical field. Human body is used as a medium of transmission of data. The use of this technology in medical monitoring systems eliminates the complexity of existing technologies that involves cables wires for transmission of data. The proposed model provides a secure and simple communication system that consists of wearable devices to measure heart …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 1, 2018 · pp. 52–58 Read article
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Relative Performance of BPSK and BFSK in Underground Mine Communication Considering Multipath and Bending Losses
Abstract: AbstractWireless/Mobile signals get strongly attenuated deep inside a building/tunnel/mine. In order to study the performance parameters, underground communication channel needs to be modeled. As a first step here we have practically tried two digital modulation methods BPSK and BFSK for underground communication. Wireless link was able to support data signals. Various measurements were made up to a depth of 30 m inside the mine. Beyond 30 m as more than …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 2, 2014 · pp. 12–17 Read article
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Investigations on PAPR Reduction using PTS Technique for OFDM Communication Systems
Abstract: AbstractOrthogonal Frequency Division Multiplexing (OFDM) is a spectral efficient technique for high data rate communication systems. It also provides robustness to multipath frequency selective fading but suffers from high peak-to-average power ratio (PAPR) and causes high power amplifiers to operate in the nonlinear region. In this paper partial transmit sequence (PTS) as PAPR reduction technique has been investigated. Mathematical modelling and Matlab simulation have been carried out to analyse its …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 19–26 Read article
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A quad band PIFA for 4G / 5G wireless communication applications
Abstract: AbstractA compact PIFA for wireless RF (Radio Frequency) devices is presented. The proposed antenna covers GPS L1, GSM 1800, GSM 1900, UMTS 2100, LTE 1700/2100 MHz, LTE 2300, Bluetooth/Wi-Fi/IEEE 802.11 b/g/n, RFID, IEEE 802.16e mobile WiMAX, UNII and C-band frequency bands useful for both 4G and 5G wireless communication applications. The simulation results for return loss, VSWR, two-dimensional radiation patterns and current distribution are demonstrated. The parametric analysis of feed …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 7–15 Read article
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Satellite Communication Challenges & Threats
Abstract: This paper describes the issues that arise when using satellites for transmission of data from the earth station to the outer space and from the extra-terrestrial back to the earth. Satellite communications standout amongst the most prominent cutting edge communication innovation for regional, terrestrial or worldwide information dissemination.In contemporary times where navigation & positioning, weather forecasting, digital video broadcasting (DVB), and broadband internet services, to mention a few are obtainable, …
Published in Journal Of Network security · Vol. 6, Issue 2, 2018 · pp. 9–14 Read article
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Knowledge and perspectives about Communication Disorder in Under-graduate and Post Graduate students of Allied Professions: An Online Survey
Abstract: Communication disorders refer to range of disorders affecting hearing, language and speech. It can affect individuals of all ages ranging from children to geriatric population. Thus, a speech language pathologist and audiologist work with a wide variety of clinical population. Huge number of SLP’s and Audiologists work in hospitals in a multi-specialty setup. This rises the need to sensitize inter professionals about communication disorders. The current study was carried with …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 12, Issue 1, 2022 · pp. 27–32 Read article
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Printed Circularly Polarized P-Shaped Patch Antenna for Wireless Communication Application
Abstract: In this paper, a study of wide band partially grounded printed polarized P-shaped microstrip patch antenna design fed by microstrip feed line. This design is considered for the improvement of axial ratio bandwidth. For defecting the ground plane, a rectangular shaped plane has been etched from the upper half of the ground plane to improve the axial ratio bandwidth (ARBW) and impedance bandwidth (IBW). For the improvement of the ARBW, …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 1, 2019 · pp. 18–22 Read article
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Planar Inverted F Antenna (PIFA) for Mobile Communication: A Review
Abstract: Abstract: Nowadays, most of the portable wireless devices requires low profile antennas to be incorporated in the device body. Planar inverted-F antenna (PIFA) is one of the most popular antennas used in wireless devices due to its advantages. In this paper a brief literature study is performed on the planar antennas designed for 4G LTE bands. Some of the MIMO antenna systems are also discussed. The study reveals several interesting …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 2, 2019 · pp. 10–14 Read article
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Optimization of Energy Efficiency in Multihop Cooperative Communication Networks
Abstract: Next-generation wireless networks use point-to- multipoint paradigms of classical cellular networks. They will be based on large interactions, where the involved nodes cooperate with one another in order to improve the performance of their own communication and that of the global network. Cooperative communications based on relaying nodes have a promising approach to increase spectral and power efficiency, network coverage, and to reduce outage probability. The concept of Cooperative Communication …
Published in Journal Of Network security · Vol. 4, Issue 2, 2016 · pp. 48–52 Read article
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Millimeter Wave Modulation for 5G Communication
Abstract: The universal bandwidth shortage for providing high data rate in gigabit per second has motivated the study of Underutilized millimeter wave band. It provides frequency spectrum for future fifth generation mobile communication networks. Propagation of millimeter wave in environment is affected by atmospheric conditions like rain, fog, cloud etc. and it is mostly affected due to presence of rain and rate of rainfall. Our objective is to develop modulation technique …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 2, 2015 · pp. 31–36 Read article
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Advancing UAV Video Transmission: A Full-Duplex System with RF and Signal Processing for Reliable, Long-Range HD Communication
Abstract: Unmanned aerial vehicles (UAVs) have transformed industries by enabling advanced aerial imaging and data collection. However, transmitting high-definition (HD) video from UAVs to ground stations poses challenges such as limited range, bandwidth constraints, and interference. This paper presents the development of an HD, full-duplex video transmission system using cutting-edge electronic technologies, including advanced radio frequency (RF) systems and signal processing. These electronic systems are designed to ensure fast, reliable, and …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 2, Issue 2, 2024 · pp. 38–45 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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Optimized Rectangular Microstrip Patch Antenna for Wireless Communications
Abstract: The design is for a microstrip patch antenna that is rectangular. The wireless local area network [WLAN] resonance frequency of the suggested antenna is 2.4GHz. The antenna's frequency selection has made it ideal for use in wireless local area networks, or WLANs. The antenna design is optimised using the optometric feature of the High Frequency Structure Simulator software (HFSS) to increase the accuracy and efficiency of the suggested antenna. HFSS …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 12, Issue 1, 2025 · pp. 37–47 Read article
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Synthesis, Characterization and Dielectric Properties of Polymer Materials for Microwave Communication Applications
Abstract: The rapid advancement in wireless communication technologies has necessitated the development of advanced materials with tailored dielectric properties. Polymer materials, because of their flexibility, lightweight nature, and processing ease, are currently being used in initiatives to formulate low-dielectric materials specifically tailored for microwave communication applications. In the current investigation, the authors concentrate on the synthesis, characterization, and dielectric properties of five distinct novel polymer materials. The synthesized polymers are characterized …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1482–1495 Read article
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High-Gain Microstrip Patch Antenna for Satellite and Radar Applications
Abstract: The growing demand for high-speed wireless communication, satellite connectivity, and advanced radar systems has increased the necessity for compact and high-performance antenna designs. This study presents the design and analysis of a high-gain microstrip patch antenna intended for satellite and radar applications operating in the microwave frequency range. The proposed antenna structure is developed using a low-loss dielectric substrate to enhance radiation efficiency, bandwidth, and gain characteristics while maintaining a …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 2, 2026 Read article
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EEG Data Compression Using Communication Techniques for PMS
Abstract: Compression of EEG (Biological) is an important issue as concern to the telemedicine area. Many of researchers have carried out the work in this domain but still the area provides an ample space for research. This research aims to develop algorithm for the compression of EEG data. In this research the constructive communication modules are used to compress the EEG data. Thirty two channels are used to load the real …
Published in Current Trends in Signal Processing · Vol. 5, Issue 3, 2015 · pp. 1–6 Read article
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Rocker Bogie System using RF Communication
Abstract: AbstractThe rocker-bogie system is a robot that can travel in rough terrain. Its mechanism helps in maintaining stability. It is a multispecialty robot that can be used for various applications. The use of Rocker-Bogie mechanism helps in maintaining the balance of the robot which is used to travel on an uneven surface, usually called as an All-Terrain Vehicular Robot. The conditions preferably needed for the robot to work are in …
Published in Journal of Electronic Design Technology · Vol. 10, Issue 2, 2019 · pp. 22–29 Read article