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All Journal POSITRON TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pekommas ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Elektronika dan Telekomunikasi TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika JMECS (Journal of Measurements, Electronics, Communications, and Systems) Indonesian Journal of Electrical Engineering and Computer Science Prosiding Konferensi Nasional PKM-CSR eProceedings of Engineering Jurnal INFOTEL Buletin Pos dan Telekomunikasi
Nachwan Mufti Adriansyah
Universitas Telkom
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Nursing Physics Public Health Social Sciences

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Modified Greedy Physical Link Scheduling Algorithm for Improving Wireless Mesh Network Performance Nachwan Mufti Adriansyah; Muhamad Asvial; Bagio Budiardjo
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 13, No 1: March 2015
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v13i1.790

Abstract

The algorithm to allocate mesh active link to radio resource timeslot in wireless mesh network (WMN) is investigated. This paper proposes the novel method to allocate multiple links in one timeslot for improving the wireless mesh network throughput via spatial time division multiple access (STDMA) protocol. The throughput improvement is obtained by modifying greedy based algorithm that is widely known as a low complexity algorithm. We propose and investigate new parameters in the greedy based algorithm that can be used as scheduling control parameters, i.e. interference weight, scheduling weight, and the sum of link’s degree. Simulation results indicate that this approximation increases network performance in throughput and length of scheduling performance closed to the upper bound performance that is achieved by the algorithm that uses the physical interference model. 
Energy efficient resources allocations for wireless communication systems Vinsensius Sigit Widhi Prabowo; Arfianto Fahmi; Nachwan Mufti Adriansyah; Nur Andini
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 4: August 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i4.10135

Abstract

The energy consumption level of the telecommunication process has become a new consideration in resource management scheme. It is becoming a new parameter in the resource management scheme besides throughput, spectral efficiency, and fairness. This work proposes a power control scheme and user grouping method to keep the rational energy consumption level of the resource management scheme. Inverse water-filling power allocation is a power allocation scheme that optimizes the energy efficiency by giving the power to the user which have good channel conditions. The user grouping method becomes the solution for carrier aggregation (CA) scheme that prevents edge cell user get the resources from the high-frequency carrier. This can prevent energy wastage in the transmission process. This power control scheme and user grouping method can optimize the spectral and energy efficiency without increasing the time complexity of the system.
IEEE 802.11ah Network Planning for IoT Smart Meter Application: Case Study in Bandung Area Fachri Nugraha Adhiatma; Doan Perdana; Nachwan Mufti Adriansyah; Risqi Herlambang Raharjo
Jurnal Pekommas Vol 5, No 1 (2020): April 2020
Publisher : BBPSDMP KOMINFO MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30818/jpkm.2020.2050102

Abstract

The growth of Wireless Fidelity (WiFi) technology is so rapid and popular. The technology most widely used for WiFi services is the IEEE 802.11 family of standards. To support the Internet of Things (IoT) era, 802.11ah standard technology has developed, and the standard is intended to provide a low-cost mode of operation, with a wider coverage area, and can support thousands of devices per cell. This paper discusses IEEE 802.11ah Standard Network Planning for the Internet of Things Application (Case Study: Smart Meter Using WiFi.id Network in Bandung), to improve network quality in terms of coverage and capacity to improve the efficiency of the WiFi network and so that it can supports the Internet of Things (IoT) service. Network planning using 802.11ah for the internet of things application with a smart meter case study using the WiFi.id network has been successfully carried out. To cover the entire area of Bandung, 23 sites are required. In the capacity, the Tx slots needed to cover possible smart meters for each site are only 9 tx slots out of a total of 100 tx slots. 
Impact of The Number of Light Emitting Diode Towards The Accuracy in Indoor Positioning System Based on Visible Light Communication Brian Pamukti; Miftakhul Meiliana Rahmawati; Nachwan Mufti Adriansyah
Jurnal Elektronika dan Telekomunikasi Vol 20, No 2 (2020)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v20.70-75

Abstract

This research detects the random position with received signal strength (RSS) method based on the received power in the room with a size of 5×5×3 cubic meter and several numbers of light emitting diode (LEDs). The first scenario uses 4 LEDs, the second scenario uses 6 LEDs and the third scenario uses 8 LEDs. Random points as the detector are placed spread at the room as many as 25 points. The simulation result shows that the use of more LEDs reduces the positioning error and increases the accuracy. If the accuracy reduces, the positioning error increase and affect the detection results. Using 8 LEDs, the number of the detected random point increases 30%, the positioning error is 47%, and the accuracy increase from 33%.  In addition, our research is useful for finding the locations of small items such as sensors that are scattered in a closed room.
ANALISIS KINERJA SISTEM BLUETOOTH PADA PHYSICAL LAYER UNTUK KOMUNIKASI SUARA TANPA KABEL Robby Aris Cahyadi; Nachwan Mufti Adriansyah
TEKTRIKA Vol 8 No 1 (2003)
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i1.220

Abstract

Kehadiran beberapa teknologi radio seperti Bluetooth dan W-LAN IEEE 802.11b yang beroperasi pada pita frekuensi 2,4 GHz akan menimbulkan interferensi sinyal yang berakibat menurunnya kinerja secara signifikan ketika tergelar di lingkungan yang sama atau berdekatan. Pada penelitian ini akan didesain sistem physical layer pada protokol Bluetooth yang meliputi radio layer dan baseband layer. Dari model tersebut, kinerja Bluetooth pada physical layer dianalisis untuk komunikasi suara dengan jenis paket HV1, HV2 dan HV3, yaitu pada hubungan antara mobile phone dengan headset. Dari evaluasi terhadap kinerjanya terlihat sistem dapat mencapat syarat batas maksimum BER 10-3 untuk komunikasi suara digital pada kanal AWGN. Kata kunci: Bluetooth Physical Layer, paket HV1-HV2-HV3, GFSK Frequency Hopping, CDMA, interferensi IEEE 802.11b
CORE NETWORK EPC REDIMENSIONING 4G LTE DI WILAYAH REGIONAL SULAWESI Vika Oktavia; Nachwan Mufti Adriansyah; Hafidudin .
TEKTRIKA Vol 2 No 2 (2017): TEKTRIKA Vol.2 No.2 2017
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v2i2.1678

Abstract

Core network dibutuhkan sebagai penyedia content layanan kepada user. Proses dimenssioning core network 4G LTE di wilayah regional Sulawesi dengan melakukan studi kasus di PT. Telekomunikasi Selular (Telkomsel) hingga tahun 2022. Pada jaringan 4G LTE dengan CSFB diperlukan minimum elemen jaringan 9 MSS, 2 HSS, 5 S/PGW, dan 5 MME. Untuk dimensioning interface dapat mengetahui bandwidth minimum yang harus disediakan. Interface control plane terdiri dari S6a, S11, S10, S1-MME, S5/S8 memerlukan 0,4015 Gbps dan kebutuhan bandwidth interface user plane terdiri dari S5/S8 user plane, S1-U dan SGi adalah 20,075 Gbps. Dari hasil dimensioning element dan interface jaringan menghasilkan topologi jaringan EPC yang dapat diimplementasisan di wilayah regional Sulawesi. Untuk membentuk sistem yang handal dari segi teknikal dan biaya dengan topologi full connection mesh menggunakan pooling sistem. Penentuan link transport dari EPC menghasilkan dua skenario topologi planning core. Sehingga, infrastruktur topologi tersebut dapat menguntungkan baik dari sisi pelanggan maupun operator. Sehingga untuk biaya infrastruktur core network berbanding dengan efisiensi bandwidth yang disediakan dengan memilih rekomendasi link transport untuk skenario yang kedua.
ANALISIS DAN SIMULASI DYNAMIC MOVEMENT-BASED LOCATION-UPDATING SCHEME (MBLS) PADA JARINGAN KOMUNIKASI BERGERAK Ariati Diah Wardhany; Nurain Silalahi; Nachwan Mufti Adriansyah
TEKTRIKA Vol 8 No 1 (2003)
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i1.217

Abstract

Dalam jaringan komunikasi bergerak, proses signaling yang bukan berasal dari sebuah panggilan juga mempengaruhi beban signaling pada jaringan. Proses signaling tersebut disebut non call related signaling. Pada dasarnya non call related signaling digunakan untuk memantau posisi Mobile Station (MS). Database yang efisien dan manajemen lokasi yang baik dibutuhkan untuk memenuhi kondisi pengguna yang semakin banyak dan dengan mobilitas yang semakin tinggi. Location updating dinamik merupakan suatu konsep location updating yang prosesnya dijalankan sesuai kelakuan pengguna, yaitu pergerakan pengguna dan pola datangnya panggilan kepada pengguna. Dynamic Movement Based Location Updating (MBLS) merupakan salah satu strategi location updating dinamik untuk mencapai pembebanan jaringan yang optimal. Beban optimal adalah jumlah beban location updating dan paging yang memberikan suatu nilai beban paling kecil. Dalam implementasinya, pengguna harus mempunyai suatu counter dalam terminal mobile-nya (MT) untuk menghitung jumlah sel yang sudah dilewatinya. Jika pengguna sudah mencapai batas/threshold sel yang harus dilewati, maka pengguna tersebut berinisiatif melakukan update lokasi ke sistem. Akan ditunjukkan juga metode location updating kombinasi yang merupakan gabungan dari dua skema dinamik yaitu gabungan pergerakan (movement) dan pewaktu (timer). Pada jurnal ini dapat diperlihatkan bahwa perubahan parameter-parameter kelakuan pengguna akan mempengaruhi beban location updating MBLS dan kombinasinya.Kata kunci : manajemen lokasi, location updating dinamik, call delivery, kode sel, non call related signaling
Greedy Based Radio Resource Allocation Algorithm with Sectoring Scheme in D2D Underlaying Communication Putu Riyana Paramita; Nachwan Mufti Adriansyah; Vinsensius Sigit Widhi Prabowo
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 7 No 1 (2020): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v7i1.3473

Abstract

D2D communication is a communication that allows users to communicate without passing through the Base Station (BS). The D2D Underlaying communication system can use the same Resource Block (RB) as the Cellular User Equipment (CUE). Implementing this communication system can ease the burden on BS and can transmit data with higher throughput in low power. However, using RB simultaneously can cause interference and therefore an RB allocation scheme is needed. The algorithm used in the scheduling process of the uplink RB owned by CUE to the D2D pair is the joint greedy algorithm with sectoring scheme. This work used a scenario where the value of the D2D pair are varied. The parameters measured in this simulation were sum-rate, spectral efficiency and fairness. The simulation results show that the joint greedy with sectoring allocation scheme has good energy efficiency and spectral efficiency values of 6.063× 106 bps/watt and 16.982 bps/Hz. On the other hand, the D2D fairness value in the joint greedy with sectoring allocation scheme is 0.886.
Greedy Based Radio Resource Allocation Algorithm with Water Filling Power Control Scheme in D2D Underlaying Communication Rezha Aulia Riyanda; Nachwan Mufti Adriansyah; Vinsensius Sigit Widhi Prabowo
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 8 No 1 (2021): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v8i1.3474

Abstract

Device to Device (D2D) is communication between two devices directly without the intervention of eNodeB.This communication can improve sum-rate, spectral efficiency, and decrease the workload of eNodeBbecause this communication uses the same spectrum frequency with Cellular User Equipment (CUE).D2D pair use the same resource simultaneously with CUE to communicate, this communication is calledD2D underlaying communication. D2D and CUE use the same resource and cause interference. Thisinterference should be managed by a resource allocation algorithm. In this work, the resource is allocatedin a single cell and the communication is from CUE to eNodeB which is called uplink communication. Thejoint greedy algorithm with water filling power control scheme is used as a resource allocation algorithmin this work. This algorithm is compared with the greedy, joint greedy, and greedy algorithm with a waterfilling power control scheme. The joint greedy algorithm works based on the capacity of eNodeB and D2Dpair. While water filling power control is used to manage the power of each user based on the channelcondition. After all of the resource is allocated, the parameter performance of the system such as spectralefficiency, energy efficiency, and D2D fairness are calculated. The simulation result that joint greedyalgorithm with water filling power control scheme obtains 29,34 bps/Hz in spectral efficiency, 0.939 x 10 7bps/watt in energy efficiency, and 0,996 in D2D fairness.
Development of a CubeSat Single Channel LoRa Receiver Module for Space-based IoT Application Muhammad Dzaky Ivansyah; Edwar Edwar; Nachwan Mufti Adriansyah; Harfan Hian Ryanu; Dhoni Putra Setiawan
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 8 No 1 (2021): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v8i1.3950

Abstract

CubeSat attracts many researchers due to its low production and deployment cost. One of the application is implemented in low data rate communication or machine to machine (M2M) with IoT devices in remote areas such as islands, forests, and mountains. In this study, a CubeSat receiver for IoT communication in remote areas has been developed and realized. A LoRa SX1276 chip is used for processing passband signals captured by the antenna. The device has a amplifier gain of 20.92 dB, 390 mW power consumption, and operating frequency of 923 MHz. The developed CubeSat is expected to provide a low bit rate of 5468.750 bps for SF 7 and 292.969 for SF 12 , the receiver serves as a concentrator for monitoring devices in rural areas.
Co-Authors Adhiatma, Fachri Nugraha Aditya , Reza Agus Dwi Prasetyo Ahmad Tri Hanuranto Aisy, Naura Safina Rahadatul Akbar Rozak Akhmad Hambali Andi Fadil Mappareppa Andi Kahfi Basofi Aprian Firlanda Imani Arafah, M. Ilmil Madya Noor Arfianto Fahmi Ariati Diah Wardhany Arum Rachmapramita Arum Rachmapramita, Arum Astri Wulandari Averrous Cendikia Islami Bagio Budiardjo Bambang Setia Nugroho Bayu Ardiansyah Rahmadhani Brian Pamukti Brian Pramukti Budi Syihabuddin Desi Nurqamarina Ramadhani DHONI PUTRA SETIAWAN Doan Perdana Edgar Giovanni Ariestawan EDWAR EDWAR Erna Sri Sugesti Fachri Nugraha Adhiatma Fahrizal Mohamad Fadli Fairuzh Shalma Nabila Farhan, Mhd Althalif Febri Zenti Ramadhani Feralia Fitri Fitri Imansyah Hafidudin . Hanifah, Dyatisa Hantoro, Gunadi Dwi Harfan Hian Ryanu Helmi Putra Hibatullah Herlina, Lisye Hikmah, Indah Nurul Jangkung Raharjo KHOIRUL ANWAR Kris Sujatmoko Kusumawardhani, Eka Lista Anggayani Martinus Erico Noktafianus Hindarto Miftakhul Meiliana Rahmawati Muhamad Asvial Muhammad Dzaky Ivansyah Muhammad Fawwaz Nesta Radha Muhammad Irfan Maulana NILADBRATA, REYVALDO FAHREZY Ningrum, Nadhifah Puspita Nisa Noor Amalia Nur Andini Nur Izza Rahma Nurain Silalahi PRATAMA, BIMA SURYA Pratama, Faris Candra Yoga Putra, Leonardus Sandy Ade putri angelia Putri, Aquila Anandya Putu Riyana Paramita Raga Filydevilia Putra Raharjo, Risqi Herlambang Rana Ayunda Salsabila Rayhan Nauvaldi Rendy Munadi Rezha Aulia Riyanda Ridha Muldina Negara Rina Pudji Astuti Risqi Herlambang Raharjo Robby Aris Cahyadi Robby Awaludin Salsabila, Siti Marwa Sambono, Oranda Aracelly Sari, Nunung Puspa Shilvy Fatma Fitria Rachmawati Silviana, Rena Situmorang, Holan Mikhael S. B. Sutari, Wiyono Syifa Hana Afifah Uke Kurniawan Usman Vika Oktavia Vinsensius Sigit Widhi Prabowo Yusri, Alvin