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All Journal Journal of Applied Information, Communication and Technology (JAICT) CYCLOTRON Bhakti Persada Jurnal Aplikasi IPTEKS
Eni Dwi Wardihani
Politeknik Negeri Semarang
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering

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Objective Video Quality Assessment of Direct Recording and Datavideo HDR-40 Recording System Nofia Andreana; Arif Nursyahid; Eni Dwi Wardihani
JAICT Vol 1, No 1 (2016)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.16 KB) | DOI: 10.32497/jaict.v1i1.422

Abstract

Digital Video Recorder (DVR) is a digital video recorder with hard drive storage media. When the capacity of the hard disk runs out. It will provide information to users and if there is no response, it will be overwritten automatically and the data will be lost. The main focus of this paper is to enable recording directly connected to a computer editor. The output of both systems (DVR and Direct Recording) will be compared with an objective assessment using the Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR) parameter. The results showed that the average value of MSE Direct Recording dB 797.8556108, 137.4346100 DVR MSE dB and the average value of PSNR Direct Recording and DVR PSNR dB 19.5942333 27.0914258 dB. This indicates that the DVR has a much better output quality than Direct Recording. 
Penerapan Sistem Informasi dan Manajemen Perpustakaan Berbasis IoT untuk Meningkatkan Literasi di SD N Kramas, Tembalang, Kota Semarang Eni Dwi Wardihani; Bambang Supriyo; Ilham Sayekti
Bhakti Persada Jurnal Aplikasi IPTEKS Vol 7 No 1 (2021): Mei 2021
Publisher : P3M Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/bp.v7i1.2160

Abstract

Tuntutan kemampuan literasi bagi usia sekolah menjadi landasan Gerakan Literasi Sekolah. Berdasarkan survei yang telah dilakukan oleh Politeknik Negeri Semarang di SDN Kramas didapati bahwa permasalahan dilatarbelakangi oleh kekurangan sarana dan prasarana pendukung Gerakan Literasi Sekolah, di mana salah satu komponennya adalah perpustakaan. Pengabdian masyarakat ini bertujuan untuk membantu kegiatan Gerakan Literasi Sekolah SDN Kramas. Metode yang dilaksanakan adalah pada aspek Non ASN dengan membuat sistem informasi dan manajemen perpustakaan database berbasis IoT (Internet of Things) Library Management System. Selain itu, adalah pada aspek ASN dengan memberikan pelatihan kepada tenaga perpustakaan agar dapat mengoperasikan sistem informasi dan manajemen perpustakaan. Hasil yang dicapai adalah terimplementasinya website perpustakaan dengan nama domain perpustakaan.sdnkramas.sch.id dan keterampilan pustakawan dalam mengeola website tersebut. Integrasi sistem tersebut diharapkan dapat membuat manajemen di perpustakaan SDN Kramas menjadi lebih baik dan terkelola.
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 Arif Nursyahid Bambang Supriyo Fahmi Baihaqi Ilham Sayekti Irfan Mujahidin Nofia Andreana