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All Journal Journal of ICT Research and Applications SENADA : Semangat Nasional Dalam MengabdI
Mohammad Ridwan Effendi
Radio Telecommunication and Microwave Laboratory School of Electrical Engineering and Informatics, Institut Teknologi Bandung Jalan Ganesha No. 10, Bandung 40132
Computer Science & IT Education Medicine & Pharmacology Public Health Social Sciences

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Penggunaan Teknologi Informasi (IT) untuk Menunjang Bisnis Di Ruang Publik Terpadu Ramah Anak (RPTRA) Kelurahan Ciracas Hariani, Danarti; Effendi, Mohammad Ridwan; Panggabean, Helena Louise; Sutrisno, Sutrisno; Iksan, Mohammad
SENADA : Semangat Nasional Dalam Mengabdi Vol. 1 No. 2 (2020): SENADA : Semangat Nasional Dalam Mengabdi
Publisher : Perkumpulan Dosen Periset Indonesia

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Abstract

Pengabdian kepada masyarakat difokuskan kepada warga/masyarakat yang tinggal di lingkungan RPTRA Prima kelurahan Ciracas yang berlokasi di Jalan Centex Gg Sopan, Ciracas Jakarta Timur. Warga di lingkungan RPTRA ini sebagaian besar warganya berprofesi sebagai pedagang kecil dan ibu ibu rumah tangga dengan tingkat penghasilan yang relatif kecil dan kurang mampu. Bahkan tingkat pendidikan yang relatif kurang, menyebabkan kurangnya pemahaman mengenai cara mengembangkan bisnisnya dengan modal yang relatif kecil. RPTRA sebagai ruang publik ramah anak juga mengemban tanggung jawab untuk memberikan edukasi bagi keluarga di wilayah sekitarnya, baik orang tua maupun anak untuk mendapatkan pengetahuan yang bermanfaat untuk meningkatkan kualitas hidupnya. Metode yang digunakan pada pengabdian ini adalah metode penyuluhan dengan memberikan pengarahan dan pengetahuan penggunaan teknologi informasi untuk mendukung bisnis keluarga, terutama penggunaan Handphone yang merupakan alat komunikasi yang digunakan untuk mendukung bisnis mereka. Pelatihan Penggunaan IT untuk mendukung bisnis diharapkan secara bertahap memberikan bekal pengetahuan dan kemampuan para warga untuk mendukung bisnis keluarga, terutama penggunaan Handphone yang merupakan alat komunikasi yang digunakan untuk mendukung bisnis mereka. Pelatihan Penggunaan IT untu mendukung bisnis diharapkn secara bertahap memberikan bekal pengetahuan dan kemampuan para warga untuk mendukung bisnisnya.
Two-stage S-Band LNA Development Using Non-Simultaneous Conjugate Match Technique Achmad Munir; Yana Taryana; Mochamad Yunus; Hardi Nusantara; Mohammad Ridwan Effendi
Journal of ICT Research and Applications Vol. 13 No. 3 (2019)
Publisher : LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.res.appl.2019.13.3.3

Abstract

This paper presents the development of a two-stage low noise amplifier (LNA) operating at the S-band frequency that is implemented using the non-simultaneous conjugate match (NSCM) technique. The motivation of this work was to solve the issue of the gain of LNAs designed using the most commonly used technique, i.e. simultaneous conjugate match (SCM), which often produce an increase of other parameter values, i.e. noise figure and voltage standing wave ratio (VSWR). Prior to hardware implementation, the circuit simulation software Advanced Design System (ADS) was applied to design the two-stage S-band LNA and to determine the desired trade-off between its parameters. The proposed two-stage S-band LNA was deployed on an Arlon DiClad527 using a bipolar junction transistor (BJT), type BFP420. Meanwhile, to achieve impedances that match the two-stage S-band LNA circuit, microstrip lines were employed at the input port, the interstage, and the output port. Experimental characterization showed that the realized two-stage S-band LNA produced a gain of 22.77 dB and a noise figure of 3.58 dB at a frequency of 3 GHz. These results were 6.1 dB lower than the simulated gain and 0.76 dB higher than the simulated noise figure respectively.
Performance Evaluation of Fractal Wavelet Packet Transform on Wireless Communication Systems Mohammad Ridwan Effendi; Rheyuniarto Sahlendar Asthan; Achmad Munir
Journal of ICT Research and Applications Vol. 18 No. 1 (2024)
Publisher : DRPM - ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.ict.res.appl.2023.18.1.3

Abstract

The performance of the phase shift keying (PSK) modulation technique over additive white Gaussian noise (AWGN) and multipath propagation channels generally becomes worse for higher-order modes. Therefore, a new modulation technique should be provided in order to have a system that is capable of transmitting data with higher efficiency while maintaining better performance at the same time. This paper presents the development of a fractal wavelet packet transform incorporated within the M-ary PSK system, namely M-ary PSK orthogonal wavelet division multiplexing (OWDM), which is proposed to obtain high performance of modulation in terms of spectrum efficiency and bandwidth resources intended for wireless communication systems. To demonstrate performance improvement over a Rayleigh frequency selective fading channel and in the presence of AWGN noise, the proposed system was evaluated and compared to the basic modulation system and M-ary PSK employing orthogonal frequency division multiplexing (OFDM). The performance results show that M-ary PSK OWDM had better performance in comparison with M-ary PSK OFDM and the conventional system. By utilizing 16 subcarriers, QPSK OWDM achieved bit error rate performance improvement from 1.5 × 10-3 to 1 × 10-4 for Eb/N0 of 20 dB with efficient bandwidth.
Co-Authors Achmad Munir Hardi Nusantara Hariani, Danarti Iksan, Mohammad Mochamad Yunus Panggabean, Helena Louise Rheyuniarto Sahlendar Asthan Sutrisno, Sutrisno Yana Taryana