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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika EMITTER International Journal of Engineering Technology 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 eProceedings of Engineering Jurnal INFOTEL Telkatika: Jurnal Telekomunikasi Elektro Komputasi & Informatika
Vinsensius Sigit Widhi Prabowo
Universitas Telkom
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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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.
Perfomance Comparison of Genetic and Greedy Algorithms in Underlay Device-to-Device Communication Salma Pratiwi; Arfianto Fahmi; Vinsensius Sigit Widhi Prabowo
EMITTER International Journal of Engineering Technology Vol 8 No 2 (2020)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v8i2.566

Abstract

The number of cellular users (CU) continues to increase in Indonesia. This impacts a large network load for the number of devices connected to the main network so it will have an impact on the quality of service. Device-to-Device (D2D) communication as components for LTE-A technology enabling a direct wireless link between the CUs without routing the data via the evolved Node B (eNB) signal or the core network. The need for algorithm and power control used to allocate radio resources so it can get a good quality of service because of communications technology D2D. In this study, we analyze and compare the performance parameters of D2D communication systems, including system interference, system sum-rate, system spectral efficiency, total energy system, and system energy efficiency based on Genetic and Greedy Algorithms in allocating radio resources and controlling the power of users. The genetic algorithm works with three operators in allocating resource block (RB), including proportional selection, crossover, and mutation. This process is repeated many times to produce several generations so that the best allocation can be got. The genetic algorithm has a flexible number of D2D and cellular communications in several RBs, minimum signal to interference plus noise ratio (SINR) also considered for mobile communication in ensuring the quality of its services. Numerical evaluations demonstrate the superior performance of the Genetic Algorithm in terms of system power, energy efficiency, and interference mitigation. As repetition gets larger, the Genetic algorithm results in better spectral efficiency.
EVALUASI KINERJA DIRECT CURRENT-BIASED OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (DCO-OFDM) TERHADAP SKALABILITAS SISTEM VISIBLE LIGHT COMMUNICATION Brian Pamukti; Vinsensius Sigit Widhi Prabowo
TEKTRIKA Vol 4 No 1 (2019): TEKTRIKA Vol.4 No.1 2019
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v4i1.1774

Abstract

Direct Current-biased Optical Orthogonal Frequency Division Multiplexing (DCO-OFDM) dengan penambahantegangan 3 V dilakukan menutupi loss 3 dB pada Asymmetrical Clipping Optical-OFDM (ACO-OFDM). Pengujianterhadap dampak dari perubahan posisi penerima terhadap kinerja dianalisis dengan mengubah sudut antarapengirim dan penerima. DCO-OFDM berbeda dengan sistem OFDM pada komunikasi seluler yang menggunakanfrekuensi radio dan nilai sinyal bipolar. Hasil simulasi komputer menunjukan bahwa jarak paling jauh daripengirim ke penerima yang dihasilkan dari sudut 24 adalah 2,413 m atau sama dengan area seluas 1,05 m2.
ANALISA PENGGUNAAN SKEMA KONTROL DAYA BERBASIS WATERFILLING DAN ALGORITMA ALOKASI MEAN-GREEDY PADA SISTEM LONG TERM EVOLUTION (LTE) Vinsensius Sigit Widhi Prabowo; Brian Pamukti
TEKTRIKA Vol 4 No 2 (2019): TEKTRIKA Vol.4 No.2 2019
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v4i2.2882

Abstract

Sistem komunikasi nirkabel diharapkan menjadi suatu sistem yang dapat menyajikan kualitas layanan yang cepat,handal,dane?sien. Olehkarenaitu,diperlukanskemamanajemensumberdayayangbaikuntukmencapai parameter performansi tersebut. Penelitian ini berfokus pada skema manajemen sumber daya pada sistem Long Term Evolution yang tidak hanya mengejar parameter performansi dasar seperti e?siensi spektral dan fairness sistem, tetapi juga mempertimbangkan aspek e?siensi energi. Penambahan skema kontrol daya water?lling digunakanpadaalgoritmaalokasimeangreedyuntukmengaturdayapadatiap-tiapresourceblock(RB).2Skema yang digunakan adalah normal water?lling (NWF) yang memberikan daya lebih pada user dengan kondisi kanal buruk dan Inverse Water?lling (IWF) yang mengalokasikan daya lebih pada user dengan kondisi kanal baik. Dari hasil simulasi didapatkan skema NWF menaikkan fairness sistem sebesar 10% tetapi menurunkan nilai e?siensi spektral sebesar 1,02 bps/Hz, dan menurunkan e?siensi energi sebesar 68,75 kbps/Watt. Sebaliknya, skema IWF meningkatkan e?siensi spektral sebanyak 1,42 bps/Hz, dan meningkatkan e?siensi energi sebanyak 205,67 kbps/Watt, tetapi fairness sistem menurun sebesar 11%. Dapat disimpulkan, skema NWF baik untuk sistem yang mengedepankan keadilan sistem dan stabilitas koneksi,sedangkan skema IWF lebih sesuai diterapkan pada sistem yang mengedepankan efisiensi. KataKunci: ,,,
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.
Radio Resource Allocation in D2D Underlay Communication Using Two Phased Auction Based Fair and Interference Resource Allocation Alfiya Syifana; Linda Meylani; Vinsensius Sigit Widhi Prabowo
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 8 No 2 (2021): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v8i2.3972

Abstract

The high demands of the mobile user will affect the workload of eNodeB, which results in the decreasingperformance system of eNodeB. Device-to-Device (D2D) underlaying communication system is a solution inreducing the workload of eNodeB and increasing the system data rate. This communication system consistsof two users, namely Cellular User Equipment (CUE) and D2D pair, where CUE shares its resources withthe D2D pair. This sharing of resources also causes interference and should be managed using the resourceallocation algorithm. This research used the TAFIRA D2D algorithm and compared it with the greedyalgorithm and the TAFIRA CUE algorithm. The research calculates parameter performance of the system,such as spectral efficiency, power efficiency, and fairness among D2D pairs. The simulation results showthat Greedy algorithm has a better performance compared with TAFIRA algorithm. TAFIRA D2D onlycan achieve 19.94 bps/Hz in spectral efficiency, 23.88 Kbps/watt in power efficiency, and 89% fairnessamong D2D pairs.
Greedy Based Radio Resource Allocation Algorithm with SARSA Power Control Scheme in D2D Underlaying Communication Astri Wulandari; 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.v7i1.3472

Abstract

Device-to-Device (D2D) underlaying communication system is a solution in reducing the workload of eNodeB and increasing the system data rate. This communication system consists of two users, namely Cellular User Equipment (CUE) and D2D pair, where CUE will share its resources with the D2D pair. This sharing resources also causes interference and should be managed using the resource allocation algorithm. In this work, the resource allocation scheme occurs in a single cell with an uplink communication direction. The resource allocation process uses greedy and joint greedy algorithms. After CUE allocates all of its resources, SARSA algorithm performs the power allocation process. The resource allocation process involves the scheduled CUE and D2D pair. After all the resource and power are allocated, parameter performance of the system is calculated. Based on the work results, joint greedy algorithm with power allocation using SARSA algorithm have performance results 1.375 × 107 bps/Watt in energy efficiency, 43.105 bps/Hz in spectral efficiency, and 0.993 in D2D fairness index.
Radio Resources Allocation Based-on Energy Saving For Lte-advanced System Vinsensius Sigit Widhi Prabowo; Arfianto Fahmi; Doan Perdana
eProceedings of Engineering Vol 4, No 1 (2017): April, 2017
Publisher : eProceedings of Engineering

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

Abstract

With increasing demand for faster access, then LTE-Advance system (LTE-A) is developed dan released by the fourth generation (4G) mobile system. 3GPP introduced a new technology that is Carrier Aggregation (CA) to support wider transmission bandwidth and spectrum efficiency. With the CA system, every user can be scheduled on multiple carriers. Because of the difference in frequencies for each carrier, there are some differences too in fading and coverage for each carrier. This problem effects the performance of conventional resources allocation algorithm especially mean-greedy algorithm. Then a method to classify users and chunk according to the number of carriers that can be given to the user is proposed. This process is called user chunk grouping (UCG). This process is performed before the mean-greedy algorithms process. Each user is grouped based on the characteristics of each component carrier fading experienced by the user. This scheme is expected to overcome the problem caused by CA system. Through simulation process, the UCG process can improve either fairness system or average throughput according to the ratio of user and bandwidth used in system. Keywords: Carrier Aggregation, Mean-Greedy, User Grouping, LTE-
Analisis Performansi Relay Aided Berdasarkan Algoritma Iterative Pada Komunikasi D2d Underlaying Andi Kahfi Basofi; Nachwan Mufti Adriansyah; Vinsensius Sigit Widhi Prabowo
eProceedings of Engineering Vol 9, No 2 (2022): April 2022
Publisher : eProceedings of Engineering

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

Abstract

Abstrak Pesatnya perkembangan teknologi membuat beban trafik menjadi kurang optimal pada BS. Hal itu, komunikasi Device to Device (D2D) dapat mengatasi pesatnya jumlah CU. D2D mampu melakukan komunikasi antar device tanpa melalui BS, tetapi dalam komunikasi D2D masih membutuhkan daya yang optimal untuk melakukan komunikasi antar device Oleh karena itu, penelitian ini mengusulkan penggunaan relay pada komunikasi D2D dengan alokasi sumber daya berdasarkan algoritma iterative. Kemudian akan di analisis berdasarkan parameter sumrate, spectral efficiency, dan power efficiency. Hasil dari parameter performansi tersebut dibandingkan dengan skema komunikasi half duplex dan full duplex. Pada skema komunikasi D2D menggunakan relay mendapatkan nilai sumrate sebesar 1,486 x 107 bps, spectral efficiency sebesar 14,860 bps/Hz, dan power efficiency sebesar 2,255 x 104. Berdasarkan hasil yang di dapatkan bahwa penggunaan relay menggunakan alokasi sumber daya dengan algoritma iterative dapat mengoptimalkan komunikasi D2D dan jika dibandingkan dengan skema komunikasi half duplex dan full duplex, skema komunikasi relay aided lebih unggul berdasarkan nilai sumrate dan spectral efficiency. Kata Kunci : Device to Device, Relay Aided, Half Duplex, Full Duplex Abstract The rapid development of technology makes the traffic load less than optimal on the BS. Therefore, Device to Device (D2D) communication can overcome the rapid number of CUs. D2D is able to communicate between devices without going through the BS, but in D2D communication still requires optimal power to communicate between devices . Therefore, this study proposes the use of relays in D2D communication with resource allocation based on an iterative. Then will be analyzed based on the parameters sumrate, spectral efficiency, and power efficiency. The results of these performance parameters are compared with half duplex and full duplex. In the D2D communication scheme using relay value sumrate 1,486 x 107 bps, spectral efficiency is 14,860 bps/Hz, and power efficiency 2,255 x 104. Based on the results obtained that the use of relays using resource allocation with an iterative can optimize D2D communication and when compared with half duplex and full duplexcommunication schemes, relay aided are superior based on sumrate and spectral efficiency. Keywords: Device to Device, Relay Aided, Half Duplex, Full Duplex
Co-Authors Achmad Ali Muayyadi Akbar Rozak Alfiya Syifana Aloysius Adya Pramudita Andi Kahfi Basofi Arfianto Fahmi Astri Wulandari Aulia, Danny Bayu Ardiansyah Rahmadhani Brian Pamukti Claudia Sofiana Tamba Cruz, Sergio Jose Valente Da Dharu Arseno DHONI PUTRA SETIAWAN Doan Perdana Dwiandharu, Muhammad Andika Naufan Erico Noktafianus Hindarto, Martinus Ersa Rahma Aqila Majid Hafizha, Syahna Harfan Hian Ryanu Hikmah, Indah Nurul Ida Wahidah Hamzah Iswahyudi Hidayat Jumarman, Muhammad Naufal Hibatullah Khairullah Utama, Ilham Levy Olivia Nur Linda Meylani Lista Anggayani Martinus Erico Noktafianus Hindarto Mufti Adriansyah, Nachwan Muhammad Arung Muhammad Fawwaz Nesta Radha Nachwan Mufti Adiriansyah Nachwan Mufti Adriansyah Ningrum, Nadhifah Puspita Nisa Alwiyah Nisa Alwiyah Nur Andini Nur Izza Rahma Pratama, Faris Candra Yoga Putu Riyana Paramita Rezha Aulia Riyanda Riansyah, Aldi Rifqi Naufal Julian Rozak, Akbar Salim, Akhmad Raihan Salma Pratiwi Sarah Dhia Amani Sari, Nunung Puspa Shilvy Fatma Fitria Rachmawati Sitepu, Karolina Utama, Ilham Khairullah Wisnutama, William Wafi