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All Journal International Journal of Electrical and Computer Engineering Transmisi: Jurnal Ilmiah Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JURNAL NASIONAL TEKNIK ELEKTRO Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JTERA (Jurnal Teknologi Rekayasa) MATRIK : Jurnal Manajemen, Teknik Informatika, dan Rekayasa Komputer Madani : Indonesian Journal of Civil Society Aiti: Jurnal Teknologi Informasi Journal of Telecommunication, Electronics and Control Engineering (JTECE) Jurnal Nasional Teknik Elektro dan Teknologi Informasi Jurnal Ekonomika Dan Bisnis eProceedings of Engineering Jurnal INFOTEL Buletin Pos dan Telekomunikasi

Anggun Fitrian Isnawati

Institut Teknologi Telkom Purwokerto, Purwokerto, Indonesia

Author-ID : 2605984

Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Analisis Perbandingan Kinerja Ekualisasi Zero Forcing dan MMSE pada FBMC-OQAM HENDRY, JANS; ISNAWATI, ANGGUN FITRIAN
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 3 (2019): ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i3.600

ABSTRAKKebutuhan layanan data pada teknologi 5G sangatlah tinggi. FBMC sebagai solusi dari kelemahan yang ada di OFDM menjadi teknologi yang digunakan pada komunikasi 5G. Pada OFDM, penggunaan ekualisasi sudah sangat banyak dilakukan penelitiannya dan menunjukkan hasil yang bervariasi tergantung dari jenis ekualisasi yang digunakan. Beberapa jenis ekualisasi yang digunakan pada modulasi OFDM antara lain Zero Forcing dan MMSE. Pada penelitian ini, beberapa variasi ekualisasi tersebut diterapkan pada FBMC dan dianalisis perbandingan kinerjanya. Penggunaan modulasi Offset-QAM yang dipadukan dengan FBMC mempunyai fungsi sebagaimana cyclic prefix pada OFDM (CP-OFDM) yakni untuk mengurangi inter symbol interference (ISI). Hasilnya menunjukkan bahwa nilai BER pada FBMC yang menggunakan ekualisasi MMSE pada SNR 5 dB mempunyai nilai sebesar 0,2941 sedangkan BER pada FBMC yang menggunakan ekualisasi ZF sebesar 0,2875. Nilai SER untuk ZF sebesar 0,5514 dan untuk MMSE sebesar 0,5391. Kapasitas kanal Hal ini menunjukkan bahwa kinerja FBMC dengan menggunakan ekualisasi MMSE lebih baik dibanding Zero Forcing.Kata kunci: FBMC, Offset-QAM, ekualisasi, Zero Forcing, MMSE ABSTRACTThe needs of data service on 5G technology is extremely necessary. FBMC as a solution over OFDM's drawbacks becomes the technology that is used in 5G communication. In OFDM technology, various equalisation methods have been used and final result highly depends on which method being used. Some of equalisation methods used in OFDM modulation are Zero Forcing (ZF) and MMSE. In this research, those equalisation methods were used on FBMC modulation and the performances were analyzed. The use of Offset-QAM modulation combined with FBMC actually functioning like Cyclic Prefix on OFDM which is to reduce Inter Symbol Interference (ISI). The result shows that BER value on FBMC that used MMSE equalisation when SNR 5 dB equals to 0.2941 whereas BER value on FBMC that used ZF equals to 0.2875. The value of SER on ZF is 0.5514 and MMSE is 0.5391. Channel Capacity calculation also shows that FBMC performance with MMSE is better than Zero Forcing.Keywords: FBMC, Offset-QAM, equalization, Zero Forcing, MMSE

ANALISIS PENGGUNAAN TEKNIK K-MEANS CLUSTERING SEBAGAI PENGGANTI FUNGSI DEMAPPER PADA SISTEM KOMUNIKASI FBMC OQAM Nabila, Nisrina Hania; Isnawati, Anggun Fitrian; Afandi, Mas Aly
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 23, No 2 April (2021): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.23.2.48-57

Pada pengiriman data, sinyal yang diterima oleh antena penerima pasti tidak sama dengan sinyal yang dikirim oleh antena pengirim. Pada penelitian ini, teknik K-Means Clustering diaplikasikan untuk proses pengembalian data bit sebagai fungsi demodulasi pada konstelasi M-Ary yang sebelumnya telah terganggu oleh noise dan fading di jaringan pita lebar. Modulasi digital yang digunakan dalam penelitian ini yaitu 16 QAM. Simulasi dilakukan pada kanal ideal (AWGN) menggunakan teknik multicarrier Filter Bank Multicarrier Offset QAM (FBMC OQAM) dengan equalizer Zero Forcing (ZF) dan tanpa ZF. Kinerja dari demapper k-means dievaluasi menggunakan Silhouette Coefficient menghasilkan sistem FBMC OQAM dengan penggunaan ZF memiliki kinerja lebih baik daripada sistem FBMC OQAM tanpa penggunaan equalizer. Seperti BER FBMC OQAM ZF pada SNR 0 dB hingga SNR 20 dB mengalami penurunan sebesar 0,3849, sedangkan pada FBMC OQAM memiliki BER yang relatif stabil. Selain mengalami penurunan pada parameter BER, sistem FBMC OQAM ZF mengalami peningkatan pada kapasitas kanal yang dihasilkan.

Analisis Unjuk Kerja FBMC-OQAM Pada Transmisi Citra QR Code Menggunakan Ekualisasi Zero Forcing Raynaldi, Brayan; Isnawati, Anggun Fitrian; Afandi, Mas Aly
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Wireless communication applications in the future require high data rate and efficient spectrum services. To be able to provide a high bit rate we can use plural modulation or multicarrier. The use of FBMC OQAM modulation aims to provide increased performance compared to the previous modulation, namely OFDM, this is due to the use of FBMC with its orthogonality properties and the use of OQAM which has a stronger advantage over the dispersion effect and has a high data rate. To get the information signal issued, ZF (Zero Forcing) equalization is used. Simulation results show that FBMC OQAM with ZF can reduce BER from 0.4275 at SNR 0 dB to 0.01231 at SNR 25 dB. Whereas the OQAM without ZF FBMC has a BER value of 0.513 at SNR 0 dB to 0.5212 at SNR 25 dB. This shows that the FBMC OQAM using ZF has a lower BER value than the FBMC OQAM without ZF. Â Keywords : FBMC, OQAM, ZF, SNR, BERAbstrakAplikasi komunikasi nirkabel di masa depan menuntut pelayanan data rate yang tinggi dan spektrum yang efisien. Untuk dapat menyediakan laju bit yang tinggi dapat menggunakan modulasi jamak atau multicarrier. Penggunaan modulasi FBMC OQAM bertujuan memberikan peningkatan unjukkerja dibandingkan dengan modulasi sebelumnya yakni OFDM, hal ini karena penggunaan FBMC dengan sifat orthogonalitasnya dan penggunaan OQAM yang memiliki keunggulan lebih kuat terhadap efek dispersi serta memiliki kecepatan data yang tinggi. Untuk mendapatkan sinyal informasi yang dikirimkan, digunakan ekualisasi ZF (Zero Forcing). Hasil simulasi menunjukkan FBMC OQAM dengan ZF dapat menurunkan BER dari nilai 0,4275 pada SNR 0 dB menjadi 0,01231 pada SNR 25 dB. Sedangkan pada FBMC OQAM tanpa ZF memiliki nilai BER 0,513 pada SNR 0 dB menjadi 0,5212 pada SNR 25 dB. Hal ini menunjukkan bahwa FBMC OQAM menggunakan ZF mempunyai nilai BER yang lebih rendah dibandingkan FBMC OQAM tanpa ZF.Â Kata Kunci : FBMC, OQAM, ZF, SNR, BERÂ

Feasibility of Power Control for Multi-Channel User in Inter-Femtocell Network Anggun Fitrian Isnawati; Risanuri Hidayat; Selo Sulistyo; I Wayan Mustika
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 4: August 2016
Publisher : Institute of Advanced Engineering and Science

The importance of power control feasibility is closely related to the direct implementation of the system, which is related to interference between users in the femtocell network and also related to the optimal use of power transmit that can create a long-lasting battery. Implementation of the feasibility of power control in this study is focused on the centralized femtocell network with a multi-channel user. The research method in this study is based on the use of feasible solution algorithms in power control by observing the output of power vector that should be valued non-negative, which means that it can be implemented. This result indicates that all of user can reach the specified target SINR. SINR users will increase when there are additional channels for user groups. The average power of user will also decrease while increasing the amount of provided channels. The greater number of users in a user group, the less value SINR can be obtained

LAJU GALAT BIT AKIBAT KESALAHAN PENGARAHAN ANTENA STASIUN BUMI KE SATELIT Wahyu Pamungkas; Anggun Fitrian Isnawati
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 8, No 1: April 2010
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v8i1.605

One problem causing reduction of energy in satellite communications system is the misalignment of earth station antenna pointing to satellite. Error in pointing would affect the quality of information signal to energy bit in earth station. In this research, error in pointing angle occured only at receiver (Rx) antenna, while the transmitter (Tx) antennas precisely point to satellite. The research was conducted towards two satelites, namely TELKOM-1 and TELKOM-2. At first, measurement was made by directing Tx antenna precisely to satellite, resulting in an antenna pattern shown by spectrum analyzer. The output from spectrum analyzers is drawed with the right scale to describe swift of azimuth and elevation pointing angle towards satellite. Due to drifting from the precise pointing, it influenced the received link budget indicated by pattern antenna. This antenna pattern shows reduction of power level received as a result of pointing misalignment. As a conclusion, the increasing misalignment of pointing to satellite would affect in the reduction of received signal parameters link budget of downlink traffic.

Channel sharing utility function of power control game in cognitive femtocell network Anggun Fitrian Isnawati; Risanuri Hidayat; Selo Sulistyo; I Wayan Mustika
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 7, No 2: June 2019
Publisher : IAES Indonesian Section

The use of sharing channel simultaneously has become the trend in telecommunication technology particularly in network with distributed users as the allocation of frequency spectrum becomes more crowded. The proposed power control method in cognitive femtocell network is based on game theory (commonly known as power control game, PCG). This method uses utility function formula as the goal of game theory for power strategy in power update process. Utility function formula of Proposed PCG includes channel sharing factor that aimed to accommodate the system requirement of channel sharing. The result showed that the implementation of channel factor is inversely proportional to the signal to noise and interference ratio (SINR) and transmit power, but proportional to utility function. In comparison of user transmit power and SINR with two other methods, can also be conclude that Proposed PCG was able to achieve SINR of 5.49 dB and above the SINR target 5 dB, while the Thalabani (TB) and Koskie-Gajic (KG) were only able to achieve respective SINR of 4.87 dB and 4.98 dB. It can be concluded that the Proposed PCG was better in achieving the SINR target. It means that the quality of service in this system can be fulfilled properly.

Analisis Unjuk Kerja FBMC-OQAM Pada Transmisi Citra QR Code Menggunakan Ekualisasi Zero Forcing Brayan Raynaldi; Anggun Fitrian Isnawati; Mas Aly Afandi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Wireless communication applications in the future require high data rate and efficient spectrum services. To be able to provide a high bit rate we can use plural modulation or multicarrier. The use of FBMC OQAM modulation aims to provide increased performance compared to the previous modulation, namely OFDM, this is due to the use of FBMC with its orthogonality properties and the use of OQAM which has a stronger advantage over the dispersion effect and has a high data rate. To get the information signal issued, ZF (Zero Forcing) equalization is used. Simulation results show that FBMC OQAM with ZF can reduce BER from 0.4275 at SNR 0 dB to 0.01231 at SNR 25 dB. Whereas the OQAM without ZF FBMC has a BER value of 0.513 at SNR 0 dB to 0.5212 at SNR 25 dB. This shows that the FBMC OQAM using ZF has a lower BER value than the FBMC OQAM without ZF. Keywords : FBMC, OQAM, ZF, SNR, BERAbstrakAplikasi komunikasi nirkabel di masa depan menuntut pelayanan data rate yang tinggi dan spektrum yang efisien. Untuk dapat menyediakan laju bit yang tinggi dapat menggunakan modulasi jamak atau multicarrier. Penggunaan modulasi FBMC OQAM bertujuan memberikan peningkatan unjukkerja dibandingkan dengan modulasi sebelumnya yakni OFDM, hal ini karena penggunaan FBMC dengan sifat orthogonalitasnya dan penggunaan OQAM yang memiliki keunggulan lebih kuat terhadap efek dispersi serta memiliki kecepatan data yang tinggi. Untuk mendapatkan sinyal informasi yang dikirimkan, digunakan ekualisasi ZF (Zero Forcing). Hasil simulasi menunjukkan FBMC OQAM dengan ZF dapat menurunkan BER dari nilai 0,4275 pada SNR 0 dB menjadi 0,01231 pada SNR 25 dB. Sedangkan pada FBMC OQAM tanpa ZF memiliki nilai BER 0,513 pada SNR 0 dB menjadi 0,5212 pada SNR 25 dB. Hal ini menunjukkan bahwa FBMC OQAM menggunakan ZF mempunyai nilai BER yang lebih rendah dibandingkan FBMC OQAM tanpa ZF. Kata Kunci : FBMC, OQAM, ZF, SNR, BER

Feasibility Analysis of Distributed Power Control System for Cognitive Radio Networks Anggun Fitrian Isnawati
JURNAL NASIONAL TEKNIK ELEKTRO Vol 11, No 1: March 2022
Publisher : Jurusan Teknik Elektro Universitas Andalas

The need for an efficient transmit power is affected by the condition of user and power control methods used. User conditions that categorized in cognitive femtocell networks included in the category as distributed user, so it required a distributed power control (DPC). To be implemented in cognitive radio network (CRN) communication, the system must be feasible. The problem raised in this research regarding the feasibility of implementing the DPC system on the CR network To meet the feasible requirements, it is necessary to test the system's feasibility through testing the eigenvalues of the link gain matrix obtained and testing the non-negative power vector conditions. In this study, experiments were carried out on 2 schemes of the number of users, namely the scheme of 5 users and 10 users, to determine the power requirements of each user according to the channel distribution. The results obtained for both schemes show that the total eigenvalue of the link gain matrix for all channels is less than 1 and all users meet the non-negative power vector requirements. So it can be concluded that those two schemes are feasible to implement a distributed power control system. Furthermore, as more users use the channel and the closer the distance between users, the more power is consumed due to high interference, necessitating high power compensation in order to maintain the target of signal to interference and noise ratio (SINR).

Analisis Unjuk kerja Jaringan Microcell LTE Berdasarkan Variasi Level Modulasi Shafira Fajrin Arumsidi; Anggun Fitrian Isnawati; Ade Wahyudin
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

The development of telecommunications technology continues to increase, especially in the use of cellular communication networks. Users of cellular networks today need high-speed communication to be able to enjoy the facilities offered such as streaming video, web browsing, e-mail and others. With the current increase in user capacity, it causes a lot of interference. Therefore, the use of modulation techniques needs to be considered. To find out the proper use of modulation, in accordance with the conditions of the region and the network used, this study examines the performance of variations in modulation levels, namely QPSK, 16QAM, 64QAM and 256QAM. The parameters measured in this study include RSRP, CINR, BER, user connected and throughput. Based on the coverage by RSRP simulation results, it was found that the RSRP did not change because the power signal will always adjust to any use of the modulation level. For coverage by CINR obtained to obtain a higher rate value, a higher CINR value is needed and for coverage by BER parameters, BER does not affect the bit per symbol carried by each modulation, only affects the different types of modulation. Meanwhile, in the capacity by Throughput parameter, QPSK modulation produces the lowest average throughput value of 14.01 Mbps followed by 16QAM 21.58 Mbps 64QAM 28.6 Mbps and 256QAM 33.87 Mbps. In addition, for the capacity by user connected parameters all connected users on all modulation used will produce 100% for capacity by user connected.

Analisis Unjuk Kerja Sistem Kendali Daya Terpusat pada Jaringan Homogen Femtocell Anggun Fitrian Isnawati; Khulqi Rasyid; Mas Aly Afandi
JTERA (Jurnal Teknologi Rekayasa) Vol 6, No 1: June 2021
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v6.i1.2021.15-24

Sistem kendali daya sangat berkaitan dengan masalah interferensi antar user pada jaringan homogen femtocell. Kendali daya juga dapat menjaga baterai perangkat supaya hemat dalam penggunaan daya. Bentuk kendali daya terpusat (centralized power control atau disingkat CPC) digunakan dalam penelitian ini dengan analisis unjuk kerja berdasarkan metode penyelesaian menggunakan algoritma solusi yang layak (feasible solution). Dengan menguji kelayakan nilai vektor daya, solusi yang layak dapat dicapai jika user mempunyai nilai daya non-negatif (non-negative power vector), yang berarti bahwa SINR target dapat tercapai dan sistem dapat diterapkan. Studi ini difokuskan pada single channel dan multi-channel yang diterapkan pada multi-user. Hasilnya menunjukkan bahwa saat kondisi sistem tersebut feasible maka semua daya user bernilai positif dan semua user mampu mencapai signal to noise ratio (SINR) target yang ditentukan yakni 13 dB untuk skema 5 user dan 9,5 dB untuk skema 10 user. Pada kondisi infeasible, daya user pada power vector ada yang bernilai negatif dan beberapa user tidak mencapai SINR target. Pada penggunaan channel bersama, penambahan user akan menurunkan SINR yang diterima user. Semakin kecil ukuran user group maka semakin tinggi SINR yang dapat dicapai. Hal ini dikarenakan interferensi antar user yang semakin kecil.

Co-Authors Abi Hakim Amanullah Achmad Rizal Danisya Ade Wahyudin Ade Wahyudin Adi Kurniawan Adi Kurniawan Adisti Nabilah Naufallia Aditya Rizki Noermartyas Adnan Purwanto Afandi, Mas Aly Agatha Dinarah Sri Rumestri Agung Budiman Ahmad Rizal Danisya Ajeng Enggar Wijayanti Ajeng Enggar Wijayanti Alfin Hikmaturokhman Andri Juli Setiawan Anjani, Mia Arfianto Fahmi Arsiandro, Fadzly Haris Bayu Hatmoko Bayu Hatmoko Brayan Raynaldi Caesar Sabani Dadan Nur Ramadan Dewi Fatimah Dewi Fatimah Dhia Fikri Zam Zami Dodi Zulherman Elisa Usada Elisa Usada Ezi Rohmat Fadillah, Siti Fairuz Azmi Fatur Rahman Harahap Fauza Khair Febry Setyadillah Febry Setyadillah Goran, Petrus Kerowe Harahap, Fatur Rahman Helmi Nurseha Hendry, Jans HENDRY, JANS I Wayan Mustika Ian Yosef Matheus Edward Ike Lestari Ike Lestari Indak Danil Mabar Indrarini Dyah Irawati Indriyanto, Slamet Irwan Susanto Irwan Susanto Khoirun Ni'amah KHOIRUN NI’AMAH Khulqi Rasyid Leksono, M. Lukman M. Raihan Muzzaki Marina, Prieska Mediawan, Afnan Syam Nabila, Nisrina Hania Ni'amah, Khoirun Nida Nurvira Nur Azizah Nur, Ivan Akmal Nurkholis, Rizki Nurmeilinda, Kharisma Olivian Bagas Pratama Pandu Laksana Prasetio, Angga Ari Prieska Marina Purwanti, Eri Nanda Dewi Randi Adzin Murdiantoro Raynaldi, Brayan Reni Dyah Wahyuningrum Renny Ayu Purwanita Renny Ayu Purwanita Ria Kurniawati Ria Kurniawati Ridwan Pandiya Risanuri Hidayat Riyanto Riyanto Riyanto Riyanto Saputra, Sahrul Selo Sulistyo, Selo Shafira Fajrin Arumsidi Sholihah Larasati Solichah Larasati Subekti, Triyono Sugondo Hadiyoso Sutarmin Sutarmin, Sutarmin Triyono Subekti Upit Herlina Upit Herlina Utari, Tria Wahyu Pamungkas Yudha Purwanto Yusri Dwi Saifullah, Muhammad Yusuf, Miftakhudin

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