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All Journal Journal of Applied Information, Communication and Technology (JAICT) CYCLOTRON
Fahmi Baihaqi
Politeknik Negeri Semarang
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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AUTOMATIC MANUAL SMART LIGHT CONTROL SYSTEM WITH STATUS FEEDBACK Samuel Beta; Fahmi Baihaqi; Ivandi Julatha
JAICT Vol 8, No 1 (2023)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jaict.v8i1.4452

Abstract

The need for light is one of the main needs for human life today. Advances in technology are very helpful in many aspects of life, especially in terms of light. Thanks to advances in technology, humans do not only rely on sunlight as a means of lighting their daily lives because lamps have been found as a substitute for lighting. Controlling the lights manually certainly has drawbacks as is often the case in this village where the owner often leaves the house with the lights on, this can cause a waste of electricity and short circuits can occur in the lights if they are constantly on. Where researchers use applied research methods which are research methods that are carried out with the intention of implementing, testing, and evaluating the ability of a theory that is applied in solving practical problems. However, researchers also use IoT (Internet of Things) technology and Internet Messenging applications, namely Telegram. Where this IoT technology is a technology that utilizes the internet network connected to a network of lights through a sensor, namely the NodeMCU Esp8266 Microcontroller. While the Telegram application is used as an aid to make it easier to monitor or control both turning on and off the lights remotely using the application, the Telegram application also sends feedback on the status of the lights. From the results of this study, it can be expected that this control system can assist in controlling or controlling lights easily and practically over long distances using the telegram application..
Radio over Fiber Systems in Cellular Communications: A Systematic Literature Review and Research Agenda Irfan Mujahidin; Fahmi Baihaqi; Eni Dwi Wardihani
CYCLOTRON Vol 6 No 2 (2023): CYCLOTRON
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/cl.v6i2.19516

Abstract

A technology combining wireless communications and fiber optics to transmit radio frequency signals via fiber optic networks is called the Radio Over Fiber system. Capacity, range, reliability, and flexibility of the communication system are advantages offered by this method. Converting RF signals to optical signals using an optical modulation technique is a basic principle of the RoF system, in which they are then transmitted over fiber optic cables. Then, with the use of an optic detector and demodulation technique, that signal is restored to an RF signal at the receiving end. In RoF systems, the reduction of power loss and signal amplification is achieved through optical fiber, which allows transmission over long distances without loss of signal quality. Applications of the RoF system are cellular networks, satellite communications, and remote sensors. In cellular networks, the application of RoF such as expanding cellular network coverage, wireless backhaul, and increasing network capacity. In range expansion, RoF enables the transmission of RF signals from a base station to a remote receiving station via optical fiber, overcoming distance barriers and signal attenuation that occurs in traditional RF transmission. In wireless backhaul, RoF is used to connect base stations with the core network via optical fiber, providing higher capacity and reliability compared to traditional wireless backhaul. To increase network capacity, RoF can move its signal processing and amplifier toward the final users to enhance the data speeds and capacities of cellular networks. It is intended that readers will be able to learn more about Radio Over Fiber systems and their potential for improving the performance of a wireless radio network, as well as how this technology can increase its signal quality when it comes to mobile communications. With the continuous development of RoF technology, it is expected that there will be significant improvements to cellular communication services in the future.
Co-Authors Eni Dwi Wardihani Irfan Mujahidin Ivandi Julatha Samuel BETA