Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Journal of Applied Information, Communication and Technology (JAICT)
Eni Dwi Wardihani
Unknown Affiliation
Computer Science & IT Engineering

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Analisa Kinerja Sistem Deteksi Terdistribusi Pada Jaringan Sensor Nirkabel Eni Dwi Wardihani; Wirawan Wirawan
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2008
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada sistem deteksi terdistribusi jaringan sensor nirkabel, sejumlah sensor disebar dalam suatu daerahtertentu untuk mendeteksi suatu target. Sensor mengumpulkan data dan membuat keputusan sementaraberdasarkan data yang diperoleh. Keputusan sementara dari sensor dikirimkan ke pusat pengolahan data yangdisebut fusion center. Fusion center membuat keputusan final hipotesa yang mendekati benar berdasarkan datayang dikirimkan sensor. Kinerja dari system dapat dilihat dari parameter yang dinamakan probabilitas deteksisystem dan probabilitas false alarm. Disini akan dievaluasi parameter-parameter tersebut untuk berbagai macamkondisi jaringan sensor nirkabel.Kata kunci : deteksi terdistribusi , jaringan sensor nirkabel, fusion center, probabilitas deteksi, probabilitasfalse alarm
Design And Development Of Presence System System Using Rfid Based On Raspberry Pi Eni Dwi Wardihani
JAICT Vol 2, No 1 (2017)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (623.775 KB) | DOI: 10.32497/jaict.v2i1.1296

Abstract

Presence of students of the Master of Telecommunications Engineering Study Program majoring in Electrical Engineering Semarang State Polytechnic is currently still managed and carried out manually. This does not rule out the possibility of errors in managing data attendance and cheating students in faking their presence, and also with the development of science and technology that is currently completely automated. From this background, it was made the Presence Using RFID Based Raspberry Pi System where the PBM became Admin to be able to access all the attendance data of the S2 Telecommunications Engineering students. Student attendance recording is done by PBM by opening a MySQL database that has been created and stored, then processed and adjusted to existing student data as student ID. The end result obtained is a tool and system that are integrated automatically and also precisely, so that students are required to arrive on time so that they do not get the Compensation if they have passed the deadline and PBM admin can manage the recapitulation data through the website including student data, data lecturer, course data, room data, lecture schedule, attendance activities, and print reports in PDF format. The trial was carried out in the Computer Lab of the Semarang State Polytechnic Applied Science Master. The conclusion is that this tool and system is able to educate students to come and have a scheduled presence and can also record attendance automatically.
Performance of MiMo-OFDM Systems in Rayleigh Channel Eni Dwi Wardihani
JAICT Vol 4, No 1 (2019)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1292.544 KB) | DOI: 10.32497/jaict.v4i1.1318

Abstract

Along with the development of wireless communication makes the increasing demand for obtaining quality services and better range, bandwidth-efficient and reliable system. OFDM is a multicarrier transmission technique to overcome multipath fading, which may result in intersymbol interference (ISI). On the other hand there is the antenna system with the use of multiple antennas at the transmitter and receiver that can also be overcome multipath fading,ie Multiple Input Multiple Output (MIMO) to increase channel capacity and diversity gain. MIMO techniques used in this Final adaldah Space Time Block Code. Simulation aims to simulate and analyze the MIMO OFDM technique using space-time block code against the influence of the number of subcarriers and influence user speed in AWGN channel and Rayleigh. The simulation results based on the number of subcarriers in AWGN channel, the best performance is obtained by subcarrier number 256. With BPSK and QPSK modulation obtained BER = 6 10-4 when SNR 4 dB. Simulation based on Rayleigh channel obtained when BER = 9.7 10-5 with BPSK modulation. Based on the comparison of the greater frequency doppler given doppler frequency, resulting in BER generated even greater, because the state of the canal will be getting worse.
DESIGN AND IMPLEMENTATION OF AN X DOUBLE BAZOOKA ANTENNA IN A HYBRID COMMUNICATION SYSTEM Agik Septhiani; Hesty Fitriana; Budi Basuki Subagio; Tahan Prahara; Eko Supriyanto; Eni Dwi Wardihani; Agus Rochadi; Muhlasah Novitasari Mara
JAICT Vol. 11 No. 02 (2025): JAICT
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The double bazooka antenna is an antenna developed for military applications and later adapted by amateur radio enthusiasts for high-frequency (HF) communication. The double bazooka antenna consists of two elements: the main element, which functions as the transmitter element that transmits and receives radio frequency (RF) signals, and the auxiliary element, which serves to widen the bandwidth. The main element is the most significant factor influencing the antenna’s parameter characteristics. This study aims to realize a double bazooka antenna with a semi-directional radiation pattern at an operating frequency of 433 MHz, which will be applied as an external antenna in a hybrid communication system. The antenna material used in this study is RG-8 cable with a relative permittivity (εᵣ) of 2.3. Antenna parameter testing was conducted at the Telecommunication Engineering Laboratory of the State Polytechnic of Semarang using a Spectrum Analyzer, Vector Network Analyzer, Radio Frequency Generator, and Antenna Trainer Kit. The results of the double bazooka antenna parameter testing showed a return loss value of -23,345537 5 and a VSWR of 1:1.24 at a frequency of 433 MHz, which is in accordance with standards, and has a gain of 19.55 dBi with a semi-directional radiation pattern and vertical elliptical polarization. The double bazooka antenna was successfully implemented in a hybrid communication system, with test results showing that the antenna operates optimally. Keywords: double bazooka antenna, radio communication, hybrid communication system, handy talkie
Co-Authors Agik Septhiani Agus Rochadi Budi Basuki Subagio Eko Supriyanto Hesty Fitriana Muhlasah Novitasari Mara Tahan Prahara Wirawan Wirawan