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263 articles for “wireless communication system”
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Mitigation of Peak to Average Power Ratio in Orthogonal Frequency Division Multiplexing through SOP-PTS
Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier modulation technology extensively employed in 4G wireless communication systems to transmit data over a dispersive channel. To address the Peak-to-Average Power Ratio (PAPR) issue in OFDM, a technique called Partial Transmit Sequence (PTS) is commonly utilized. The PTS method involves dividing the data block into non-overlapping sub-blocks and then combining them using phase factors to mitigate PAPR. However, the conventional PTS …
Published in International Journal of Radio Frequency Innovations · Vol. 1, Issue 1, 2023 · pp. 32–39 Read article
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A Overview of Free Space Optical Communication (FSO)
Abstract: Free Space Optical communication (FSO) is a wireless communication system that employs light propagation across free space to transport data between two sites without the usage of fibre optic cables. It uses either lasers or light emitting diodes (LEDs) for high speed data transmission with enormous bandwidth, which makes it a desirable solution for modern communication systems. The FSO provides many advantages such as minimal installation cost, excellent security, licence …
Published in International Journal of Optical Innovations & Research · Vol. 4, Issue 1, 2026 · pp. 31–35 Read article
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Microstrip Planar Broadband Yagi-Uda Antenna for X-Band Communication
Abstract: In this paper, a planar Yagi-Uda antenna based on classic Yagi-Uda dipole antenna is accessible which is very useful for microwave wireless applications. This antenna provides relatively high gain and more directive radiation pattern at X frequency band with proper impedance matching. This antenna has been developed at supporting dielectric constant of 4.4, supported substrate thickness of 1.6 mm and loss tangent of 0.02. The proposed antenna is completely compatible …
Published in Journal of Electronic Design Technology · Vol. 3, Issue 1-3, 2012 · pp. 60–63 Read article
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Textile Antenna with Partial Ground for Multiband Applications
Abstract: AbstractIn this article, the dominant textile antenna is presented. The proposed antenna has various applications like satellite communication, military and medical applications. The proposed antenna gives dual frequency bands with bandwidth from 8.96 to 14.456 GHz with 46.73% and second band from 14.98 to 17.46 GHz with 15.289. The intended textile antenna is applicable for wireless communication systems as it has wide dual bandwidth and high directivity of 6.379 dBi.Keywords: …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 15–18 Read article
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An Overview of Elliptical Low Pass Filter by using Defected Ground Structure Method
Abstract: Calculation and differentiation of the response of elliptical low pass filter (LPF) with and without using defected ground structure (DGS) was done. In the present work, return loss, bandwidth and gain have been evaluated. All the designs are printed on the FR4 lossy substrate of dielectric constant ( ) of 4.3, substrate thickness of 1.6 mm and loss tangent of 0.02. Moreover, the effect of controlling parameters namely slots and …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 13–16 Read article
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UWB Band Pass Filter Using Dielectric Resonator
Abstract: A novel ultra-wideband (UWB) bandpass filter is proposed and implemented using a dielectric resonator, with aim of transmitting the signals in the whole UWB passband of 3.1–10.6 GHz. Ultra-wideband (UWB) is a promising innovation for some remote applications because of its expansive transfer speed, great proportion of transmission information and low power cost. The filter is compact in size with a great simplicity in assembly and integration. The developed UWB …
Published in Journal of Microwave Engineering and Technologies · Vol. 3, Issue 3, 2016 · pp. 25–29 Read article
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Triple Band PIFA Antenna Using The DGS Method
Abstract: In this paper, a new design of a triple band Planner Inverted –F Antenna (PIFA) with DGS, for mobile and wireless communication systems is presented. The PIFA antenna consists of ground plate, patch antenna, feeding port and shorting plate connected to the ground plate. The designed antenna has been simulated with the help of the CST (computer Simulation Technology) software microwave studio 2010. The simulated results calculated for the resonant …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 2, 2014 · pp. 9–16 Read article
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Gain Enhanced 2.4 GHz Slotted Rectangular Microstrip Patch Antenna with FR-4 Epoxy Substrate
Abstract: Applications that use the Internet of Things (IoT) must be combined with wireless networking technologies. This makes it easy to get to the application data. The wireless communication system is a key part of the infrastructure for the Internet of Things. It acts as a bridge for two-way connections to gather data and send control messages. In this work, HFSS software is used to create a rectangular microstrip patch antenna …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 20–26 Read article
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A New Analytical Expression of Channel Capacity with MRC Diversity Over Composite Model of α-μ/Inverse Gaussian Fading Distribution
Abstract: Abstract: Fading in a wireless communication system occurs basically due to two phenomena, multipath fading, and shadowing. A realistic scenario would comprise of both the phenomenon occurring simultaneously. Such a scenario is frequently characterized by a composite model of multipath/shadowing fading. In this work, a novel expression for the composite model of αμ/Inverse-Gaussian (IG) distribution with MRC diversity is obtained using the GaussLaguerre integration technique. Further utilizing the obtained expression …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 1, 2019 · pp. 22–29 Read article
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Low profile L5 and S band Microstrip antenna for IRNSS Application Using Coxial Feed
Abstract: In recent aura, navigation is one the most demanding technology. To increase coverage, gain and bandwidth are more important of any wireless communication systems India has developed its own navigational system called IRNSS which work one two frequency band one is L5 (1.176 GHz) and second one is S band (2.482-2.502 GHz) In this paper we proposed 2 different antenna one for L5 band and second for S band antenna …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 7–17 Read article
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BER Analysis of STBC MIMO-OFDM with ICI Cancellation
Abstract: AbstractSpace Time Block Code (STBC) Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) has been considered as the best technology for upcoming wireless communication systems because of its capability to transmit large data rates. But the given systems suffer from various major problems; like Carrier Frequency Offset (CFO), timing offset carrier phase noise and Intersymbol Interference (ISI) issues. In this research work, the carrier frequency offset has been …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 1–6 Read article
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Capacity and BER Performance Analysis of Single Cell Massive MIMO with Various Precoding Techniques
Abstract: AbstractMassive Multi Input Multi Output (MIMO) is one of the promising technologies which will facilitate the 5th generation wireless communication system (5G) in the near future. It also goes by other names such as, large MIMO, hyper MIMO, full-dimension MIMO and ARGOS. In this technology the Base Station is incorporated with a large number of transmitting antennas (e.g., Hundreds, thousands). A large number of antenna help to focus the energy …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 1, 2016 · pp. 1–14 Read article
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Application of DTMF and Zigbee Wireless Communication in a Smart Home
Abstract: This paper presents the method of monitoring and controlling the smart devices in a smart home using dual-tone multi-frequency (DTMF) signal and Zigbee wireless communication. Today most of homes are equipped with relatively prefect phone lines. Thus, DTMF is very helpful in decreasing the cost of smart homes. DTMF is a signal used in the telephone network in calling with numbers. If this is used, not only can we control …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 11, Issue 3, 2024 · pp. 1–10 Read article
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Attendance System Using Smartphone Authentication and Bluetooth Beacons
Abstract: AbstractMost of the institute in India takes attendance to track the progress of students and most of them update attendance manually which is just a waste of time. Some of the methods like Biometric, RFID can be implemented but it takes a lot more time and also has a chance of spreading the deadly virus like Sars-Cov-2 [1]. This paper is aimed at updating attendance of students using the student’s …
Published in Journal of Communication Engineering & Systems · Vol. 10, Issue 3, 2020 · pp. 10–15 Read article
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Blockchain-Enabled Secure Wireless Communication IoT Networks
Abstract: Cloud-native environments with their distributed environments and transient workloads raise the intrinsic problem of traditional intrusion detection and response systems to unprecedented levels. Modern cloud platforms have rapid elasticity, microservice orientation, and dynamic scaling, which usually exceed the range of centralized security services, contributing to the problem of slower threat detection and a poor ability to contain the threat. The proliferation of the Internet of Things (IoT) gadgets across different …
Published in International Journal of Wireless Security and Networks · Vol. 4, Issue 1, 2026 · pp. 10–14 Read article
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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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Arduino based LPG Gas Leakage smart Detection system
Abstract: Leaking LPG can result in significant mishaps even though it a common fuel for both residential and commercial activity. In this study, a microcontroller with a MQ2 gas sensor, buzzer, and GSM module is used to detect LPG leaks. Upon early detection of leakage, the wireless system can initiate automatic safety actions and send SMS warnings and sound alarms. The design and implementation of a microcontroller-based LPG leak detection and …
Published in Journal of Microcontroller Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 1–10 Read article
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Flying Drone Using KK Flight Controller
Abstract: This paper presents the design, development, and testing of a quadcopter drone using the KK2.1.5 flight controller, with an emphasis on stability and educational value. The KK2.1.5 controller features are inbuilt LCD screen, inbuilt programming, enabling direct configuration and tuning without the need for a computer interface, which makes it highly suitable for beginners and students. The drone is built using a modular frame architecture, which allows for easy replacement …
Published in International Journal of Advanced Control and System Engineering · Vol. 3, Issue 2, 2025 · pp. 20–25 Read article
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An overview of fractal antennas
Abstract: Wireless communication for wireless applications is growing at a faster rate these days. There is a greater need for low-profile, multiband or wideband antennas. With the elevated low-profile antennas are in high demand due to advancements in antenna technology. The fractal antenna's self-similarity and self-repetitive characteristics enable it to satisfy this requirement. I give a thorough overview of fractals in this review paper, going on to discuss their dimensions and …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 1, 2026 · pp. 1–7 Read article
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A Comprehensive Review of CMOS Analog Circuit Design Techniques for Low-Power VLSI Systems
Abstract: CMOS analog circuit design plays a significant role in the development of modern low-power Very Large-Scale Integration (VLSI) systems used in wireless communication, biomedical devices, portable electronics, embedded systems, and Internet of Things (IoT) applications. Research on low-power CMOS analogue design methodologies has intensified because to the growing need for high-performance, small, and energy-efficient electronic products. However, reducing power consumption while maintaining signal accuracy, noise performance, stability, bandwidth, and overall …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 4, Issue 1, 2026 Read article