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All Journal Journal of Telecommunication, Electronics and Control Engineering (JTECE) TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Jurnal SINTA: Sistem Informasi dan Teknologi Komputasi
Ni’amah, Khoirun
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Performance of LDPC Codes in Multipath OFDM System Wahyuningrum, Reni Dyah; Hafiza, Lia; Ni’amah, Khoirun; Larasati, Solichah; Udlhiya, Ida
Journal of Telecommunication Electronics and Control Engineering (JTECE) Vol 7 No 1 (2025): Journal of Telecommunication, Electronics, and Control Engineering (JTECE)
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v7i1.1653

Abstract

In fifth-generation wireless networks (5G), a significant challenge arises: delivering high-speed data transmission and extensive networking services while maintaining a low bit error rate (BER). To meet the demands of 5G services, Orthogonal Frequency Division Multiplexing (OFDM) emerges as a promising technique for ensuring high-quality communication and an FFT size of 256. Moreover, several channel coding methods have been employed to enhance BER performance. Among these methods, Quasi Cyclic- Low-Density Parity Check (QC-LDPC) has become the established standard for high-speed data transmission in 5G networks. However, implementing these coding methods in conjunction with 5G standard specifications presents various complexities and challenges. In this research, we analyze QC-LDPC in multipath fading using OFDM. The performance of QC-LDPC codes at a BER of 10-3 can be achieved with an SNR of 15 dB for OFDM with QC-LDPC codes and an SNR of 20 dB for OFDM. The inclusion of QC-LDPC coding in the OFDM system significantly improves performance by reducing the required SNR for a BER of 10-3 from 20 dB (uncoded) to 15 dB (coded), a 5 dB reduction. Channel coding with QC-LDPC also enhances system efficiency by consistently decreasing the BER across various SNR values. These results confirm that QC-LDPC coding provides better reliability and performance than the uncoded OFDM system.
Scaling-up Embung Tadah Hujan Untuk Irigasi Pertanian Sudianto, Sudianto; Dyah Kurniawati, Ajeng; Ni’amah, Khoirun
TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Vol. 4 No. 2 (2024): TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat
Publisher : Fakultas Teknik, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tekiba.v4i2.4389

Abstract

Kedungbenda Village, Purbalingga, faces agricultural irrigation problems due to dependence on erratic rainfall, especially during the dry season, exacerbated by the El Niño phenomenon. Rain-fed reservoirs are proposed as a solution to increase the availability of irrigation water. Through the rain-fed reservoir scaling-up program, the water storage capacity is significantly increased. As a result, the planting frequency, which was previously only one to two times per year, increased to three times per year, contributing to increased agricultural productivity. The total area of ​​irrigated land also increased, from three to five rice fields per reservoir to a larger area with eight active reservoirs. In addition, the impact of drought was successfully minimized so that farmers could still manage their land even during the long dry season. This program also increased farmers' awareness of the importance of sustainable water management through water management training. However, challenges still exist in terms of reservoir maintenance, especially related to sedimentation. In the future, a more intensive maintenance strategy is needed to maintain the sustainability of the reservoirs.
SISTEM MONITORING KUALITAS UDARA RUANGAN DENGAN PROTOKOL MQTT BERBASIS INTERNET OF THINGS Surbakti, Hairunisa Br; Ginting, Jafaruddin Gusti Amri; Romadhona, Shinta; Ginting, Melinda Br; Ni’amah, Khoirun
Jurnal SINTA: Sistem Informasi dan Teknologi Komputasi Vol. 1 No. 3 (2024): SINTA - JULI
Publisher : Berkah Tematik Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61124/sinta.v1i3.25

Abstract

Kualitas udara di dalam ruangan merupakan salah satu faktor penting yang mempengaruhi kesehatan dan kenyaman manusia. Paparan terhadap polutan udara dalam ruangan dapat menyebabkan berbagai masalah kesehatan, seperti alergi, asma, penyakit pernapasan, dan bahkan kanker. Sistem pemantauan kualitas udara dapat dipantau dengan menggunakan sensor DHT22 dan mikrokontroller ESP32. Sensor DHT22 dipilih karena keakuratannya dalam mendeteksi suhu dan kelembapan. Mikrokontroller ESP32 memungkinkan sistem untuk terhubung dengan jaringan WiFi, mendukung komunikasi dan pengolahan data secara akurasi. Monitoring bertujuan untuk menciptakan alat yang dapat menjaga stabilitas suhu dan kelembapan secara otomatis, mendukung kenyamanan dan kesehatan penghuni ruangan. Protokol MQTT berbasis Internet of Things (IoT) diimplementasikan dalam sistem ini untuk mengintegrasikan komponen-komponen tersebut. Metode yang digunakan mencakup perancangan dan pengujian sistem, pemantauan menggunakan DHT22 dan ESP32 yang terhubung melalui MQTT. Hasil monitoring menunjukkan bahwa implementasi protokol MQTT memberikan kontribusi positif terhadap pengembangan teknologi monitoring kualitas udara dalam ruangan. Sistem ini membuktikan kemampuannya untuk memantau dan menjaga kondisi udara secara efektif dan efisien.
Co-Authors Dyah Kurniawati, Ajeng Jafaruddin Gusti Amri Ginting Lia Hafiza Melinda Br Ginting Shinta Romadhona Solichah Larasati Sudianto, Sudianto Surbakti, Hairunisa Br udlhiya, Ida Wahyuningrum, Reni Dyah