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All Journal POSITRON Jurnal INFOTEL Perfecting a Video Game with Game Metrics Jurnal Pekommas Buletin Pos dan Telekomunikasi 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 Water Circulation Monitoring System in The Vanname Shrimp Cultivation based on Internet of Thing eProceedings of Engineering
Nachwan Mufti Adriansyah
Universitas Telkom
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Transportation

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Analisis Koeksistensi Jaringan LTE Non Lisensi dan Wi-Fi Pada Frekuensi 5GHz Rachmapramita, Arum; Adriansyah, Nachwan Mufti; Syihabuddin, Budi
JURNAL INFOTEL Vol 9 No 3 (2017): August 2017
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (741.743 KB) | DOI: 10.20895/infotel.v9i3.289

Abstract

Untuk memenuhi permintaan kebutuhan trafik layanan internet yang akan terjadi pada 2020, penggunaan spektrum harus dilakukan secara maksimal. Pemanfaatan spektrum frekuensi non-lisensi oleh teknologi LTE-Unlicensed atau LTE Non-Lisensi dapat memenuhi permintaan kebutuhan trafik. Tetapi spektrum frekuensi non-lisensi sudah terlebih dahulu digunakan oleh teknologi Wi-Fi, maka teknologi LTE Non-Lisensi harus dapat beradapatasi dan berkoeksistensi dengan Wi-Fi. Penelitian ini akan membahas jarak minimum yang dibutuhkan oleh eNodeB LTE Non-Lisensi dan Access Point Wi-Fi agar kedua teknologi ini dapat berkoeksistensi dengan kondisi indoor LOS dan NLOS serta outdoor LOS dan NLOS. Koeksistensi ditinjau dari nilai ACIR antara kedua teknologi tersebut. Berdasarkan hasil penelitian, jarak minimum untuk indoor adalah 16m-35m dengan kondisi LOS dan outdoor adalah 51m-199m dengan kondisi LOS. Nilai SINR threshold adalah 22dB untuk LTE Non-Lisensi dan 19,7dB untuk Wi-Fi. Dari hasil simulasi didapatkan nilai rata-rata CINR untuk outdoor adalah 15dB sedangkan untuk indoor nilai SIR rata-rata adalah 0,62dB.
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. 
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.
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.
Analisis Performansi Multi User Detection pada Kanal NLOS untuk Sistem NOMA-VLC BIMA SURYA PRATAMA; NACHWAN MUFTI ADRIANSYAH; BRIAN PAMUKTI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 2 (2021): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektro
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i2.482

Abstract

ABSTRAKNon-orthogonal multiple access (NOMA), mulai diteliti untuk dapat digunakan sebagai teknik multiple access yang efektif pada jaringan 5G karena teknik ini dapat menghemat bandwidth modulasi. Pada penelitian ini, NOMA diterapkan untuk sistem downlink Visible Light Communivation (VLC). Kami telah melakukan analisis performansi Multi-User Detection (MUD) pada kanal propagasi Non-Line of Sight (NLOS) dengan mempertimbangkan efek reflektor dan efek bayangan (shadowing). Kami juga mempertimbangkan teknik MUD yang digunakan pada penelitian ini yaitu Succesive Interference Cancellation (SIC). Setelah simulasi yang ekstensif, kami menemukan bahwa dengan penerapan SIC sebagai MUD pada sistem NOMA-VLC lebih baik dibandingkan dengan tanpa NOMA. Selain itu, kami juga memperoleh peningkatan data rate sebesar 72 %.Kata kunci: VLC, NOMA, NLOS, MUD, Optical Wireless Communication. ABSTRACTNon-orthogonal multiple access (NOMA), began to be studied to be used as an effective multiple access technique on 5G networks because this technique can save modulation bandwidth. In this research, NOMA is applied to the Visible Light Communivation (VLC) downlink system. We have performed a Multi-User Detection (MUD) performance analysis on Non-Line of Sight (NLOS) propagation channels by considering the reflector and shadowing effects. We also consider the MUD technique used in this study, namely Successive Interference Cancellation (SIC). After extensive simulations, we found that the application of SIC as MUD to the NOMA-VLC system is better than without NOMA. In addition, we also achieve an increase in data rate of 72%.Keywords: VLC, NOMA, NLOS, MUD, Optical Wireless Communication.
Evaluasi Coded Random Access untuk Visible Light Communication pada Model Kanal Non-Line Of Sight BRIAN PAMUKTI; NACHWAN MUFTI ADRIANSYAH; REYVALDO FAHREZY NILADBRATA
Jurnal Elkomika Vol 10, No 2 (2022): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i2.405

Abstract

ABSTRAKPenggunaan Non-Orthogonal Multiple Access (NOMA) pada sistem komunikasi dapat memberi kebebasan bagi user untuk mengirimkan informasi secara bersamaan tanpa harus memperebutkan timeslot ataupun frekuensi. Coded Random Access (CRA) adalah salah satu bagian dari Coded Comain-NOMA (CDNOMA) yang menggunakan kode tanpa ortogonal untuk komunikasi uplink. Terinspirasi dari Additive Links On Line Hawaii Area (ALOHA), kami menggunakan metode Irregular Repetition Slotted ALOHA (IRSA) dengan tiga jumlah slot node dan sembilan degree distribution pada model kanal Line Of Sight (LOS) dan Non-LOS (NLOS). Kami menggunakan metrik pengukuran berupa throughput dan Packet Loss Ratio (PLR) untuk memperoleh hasil simulasi. Dari simulasi yang ekstensif, kami membuktikan bahwa IRSA stabil pada jumlah slot node yaitu 75, 150 dan 300 yang memperoleh throughput di sekitar 0.75 paket/slot.Kata kunci: Coded Random Access, Non-Orthogonal Multiple Access, Slotted ALOHA, Successive Interference Cancellation ABSTRACTThe use of Non-Orthogonal Multiple Access (NOMA) in communication systems can provide users the freedom to transmit information simultaneously without having to fight over timeslots or frequencies. Coded Random Access (CRA) is a part of Coded Domain-NOMA (CD-NOMA) that uses orthogonal code for uplink communication. Inspired by the Additive Links On Line Hawaii Area (ALOHA), we use the Irregular Repetition Slotted ALOHA (IRSA) method with three number of node slots and nine degree distributions on the Line Of Sight (LOS) and Non-LOS (NLOS) channel models. We use measurements in the form of throughput and Packet Loss Ratio (PLR) to obtain simulation results. From extensive simulations, we prove that IRSA is stable on a wide number of node slots of 75, 150 and 300 that acquire throughput in about 0.75 packets/slot.Keywords: Coded Random Access, Non-Orthogonal Multiple Access, Slotted ALOHA, Successive Interference Cancellation
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.
Co-Authors Agus Dwi Prasetyo Ahmad Tri Hanuranto Akbar Rozak Andi Fadil Mappareppa Andi Kahfi Basofi Aprian Firlanda Imani Arfianto Fahmi Ariati Diah Wardhany Arum Rachmapramita, Arum Astri Wulandari Averrous Cendikia Islami Bagio Budiardjo Bambang Setia Nugroho Bayu Ardiansyah Rahmadhani BIMA SURYA PRATAMA Brian Pamukti Brian Pramukti Budi Syihabuddin Desi Nurqamarina Ramadhani DHONI PUTRA SETIAWAN Doan Perdana Edgar Giovanni Ariestawan EDWAR EDWAR Fachri Nugraha Adhiatma Fahrizal Mohamad Fadli Fairuzh Shalma Nabila Febri Zenti Ramadhani Feralia Fitri Fitri Imansyah Hafidudin . HARFAN HIAN RYANU KHOIRUL ANWAR Kris Sujatmoko Kusumawardhani, Eka M. Irfan Maulana Martinus Erico Noktafianus Hindarto Miftakhul Meiliana Rahmawati Muhamad Asvial Muhammad Dzaky Ivansyah Muhammad Fawwaz Nesta Radha Nisa Noor Amalia Nur Andini Nur Izza Rahma Nurain Silalahi Putra, Leonardus Sandy Ade Putri Angelia Putu Riyana Paramita Raga Filydevilia Putra Rana Ayunda Salsabila Rayhan Nauvaldi Rendy Munadi REYVALDO FAHREZY NILADBRATA Rezha Aulia Riyanda Ridha Muldina Negara Rina Pudji Astuti Risqi Herlambang Raharjo Robby Aris Cahyadi Robby Awaludin Uke Kurniawan Usman Vika Oktavia Vinsensius Sigit Widhi Prabowo