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<![CDATA[Desain Perangkat Lunak SMS dengan Translasi Text Aksara Bali ]]>
<![CDATA[Ida Bagus Kade Dwi Suta Negara]]>;
<![CDATA[NMAE Dewi Wirastuti]]>;
<![CDATA[Nyoman Pramaita]]>
<![CDATA[ JUPITER (Jurnal Penelitian Ilmu dan Teknologi Komputer) Vol 10 No 2 (2018): Jupiter Oktober 2018 ]]>
Publisher : <![CDATA[Teknik Komputer Politeknik Negeri Sriwijaya ]]>
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DOI: 10.5281/zenodo.3406880
<![CDATA[Sebagian besar masyarakat Bali mampu berkomunikasi menggunakan bahasa Bali, akan tetapi hanya sedikit orang Bali yang mampu dan mengerti tata penulisan Aksara Bali. Hal ini terjadi karena tata cara penulisan Aksara Bali aturannya cukup kompleks. Diperlukan cara-cara yang inovatif untuk menarik minat masyarakat dalam mempelajari Aksara Bali, salah satunya dengan memanfaatkan teknologi informasi. Penelitian ini membahas desain perangkat lunak SMS dengan translasi text Aksara Bali. Dalam pembuatan desain perangkat lunak ini terdiri dari beberapa tahapan, yaitu: pengumpulan data dan literatur, identifikasi permasalahan, desain dan perancangan sistem, serta implementasi dan pengujian. Hasil desain translasi text Aksara Bali pada perangkat lunak SMS berupa: perancangan proses translasi text Aksara Bali, perancangan proses pegiriman SMS, dan perancangan proses penerimaan SMS. Sedangkan desain antar muka translasi text Aksara Bali pada perangkat lunak SMS berupa desain antarmuka pengiriman dan penerimaan SMS.]]>
<![CDATA[Novel Hybrid Orthogonal Large Set Code Sequence for High Density Wireless Networks ]]>
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[P. L. Johnson]]>
<![CDATA[ IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013 ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2014i1.256
<![CDATA[CDMA technique has been successfully employed to implement high capacity mobile networks with optimum channel bandwidth utilization. The two most coveted criteria for the spreading codes used in such network are, the number of codes in the set and the code orthogonality, in order to ensure accommodation of large number of users and as well as minimal interference between the users. Walsh code has proved to be a popular orthogonal code, whereas m-sequence, Gold code and Kasami code have established themselves as popular non-orthogonal binary codes. Small set Orthogonal Kasami code has been proposed and evaluated by researchers for CDMA applications. In this paper the authors report the design of hybrid orthogonal large set (HOLS) code for synchronous CDMA systems. The HOLS code was evaluated in a synchronous CDMA system over different channel conditions. The authors also demonstrate that the BER performance of the HOLS code is comparable to that of the existing orthogonal codes, but outperforms Gold and large set Kasami code sequences. The HOLS code sequence is also shown to outperform the existing code sequences in the number of cells it can support. In terms of multiple access interference (MAI), the cross-correlation function (CCF) of the HOLS code sequence is comparable to that of Walsh and orthogonal small set Kasami codes, and much better than those of Gold and large set Kasami code sequences. HOLS code sequence has comparable auto-correlation function (ACF) with that of Gold, large set Kasami and orthogonal small set Kasami code sequences and a much better ACF than that of Walsh code sequence.]]>
<![CDATA[Classification Of Loyality Customer Using K-Means Clustering, Studi Case : PT. Sucofindo (Persero) Denpasar Branch ]]>
<![CDATA[Charolina Devi Oktaviana Soleman]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[Made Sudarma]]>
<![CDATA[ International Journal of Engineering and Emerging Technology Vol 5 No 2 (2020): July - December ]]>
Publisher : <![CDATA[Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University ]]>
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DOI: 10.24843/IJEET.2020.v05.i02.p28
<![CDATA[The success of the company in developing its services can be seen from the number of customers who use these services, customer loyalty in using services can be seen from customer loyalty. Customer loyalty is an important factor in the development of a business in the company, repeated use of services can be used as an indicator in determining the level of customer loyalty, by paying attention to customer loyalty, of course the company will be able to develop customer focus on an ongoing basis. Clarification of customers needs to be done to find out how demographics customers use services, can be seen from how many customers and the level of transactions made. K-Means clustering is one method that can be used for the classification process of customer data through transactions carried out by forming several clusters, this classification process is divided into 5 clusters with the results of which include 1) A few small number transactions with many customers, 2) Many transactions small number with many customers, 3) a few transactions with a medium number of customers begin to decrease, 4) a few large number transactions a few customers, 4) a moderate number of transactions with a number of customers.]]>
<![CDATA[Classification and Prediction of Smoking Behavior and Hypertension in the Healthy Family Program with R (Case Study : Bali Provincial Government Department of Health) ]]>
<![CDATA[I Gede Abi Yodita Utama]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[Made Sudarma]]>
<![CDATA[ International Journal of Engineering and Emerging Technology Vol 5 No 2 (2020): July - December ]]>
Publisher : <![CDATA[Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University ]]>
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DOI: 10.24843/IJEET.2020.v05.i02.p07
<![CDATA[The Healthy Indonesia Program with the Family Approach aims to improve the quality of human life and is a government program that starts from the family environment. There are 12 indicators marking the health status of a family. The Provincial Government of Bali in implementing the 12 indicators there are two main problems of non-communicable diseases, namely patients with hypertension and smoking behavior. An analysis in the form of classification and prediction is needed to overcome these problems. Classification and prediction is one of the techniques in data mining. Through R, a decision tree can be produced which can be used to help the classification process and produce predictions related to the problem of non-communicable diseases. The decision tree results can be predicted that the dominant hypertension are in the age group classification of 20-40 years and 41-70 years with a probability of 0.14. As for smoking behavior, the highest smoking tendency was obtained in the classification of male sex whose status worked with a probability of 0.44.]]>
<![CDATA[Desain Program Simulasi Unjuk Kerja Kode Walsh Pada Kanal Multipath Fading ]]>
<![CDATA[Made Arya Putra Kusuma]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[I Made Oka Widyantara]]>;
<![CDATA[I Gusti Agung Komang Diafari Djuni Harta]]>
<![CDATA[ Matrix : Jurnal Manajemen Teknologi dan Informatika Vol 10 No 1 (2020): MATRIX - Jurnal Manajemen Teknologi dan Informatika ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M Politeknik Negeri Bali ]]>
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DOI: 10.31940/matrix.v10i1.1833
<![CDATA[Penelitian ini bertujuan untuk mengetahui pengaruh perubahan jumlah komponen multipath pada unjuk kerja kode Walsh pada kanal multipath fading melalui simulasi dengan menggunakan software Matlab. Hasil simulasi ditinjau dari parameter Bit Error Rate (BER) vs Energy Bit per Noise (Eb/No). Dari simulasi dilihat perbandingan performasi sistem komunikasi unjuk kerja kode Walsh pada kanal multipath fading yang dihasilkan dengan memvariasikan jumlah komponen multipath dengan jumlah 2, 4, 6 dan 8. Sistem ini dibandingkan dengan menggunakan kanal flat fading dalam kondisi yang ideal. Hasil dari simulasi menunjukkan performansi sistem komunikasi unjuk kerja kode Walsh pada kanal multipath fading mengalami peningkatan nilai BER pada saat jumlah komponen multipath ditambahkan. Hal ini disebabkan karena semakin banyak jumlah komponen multipath yang digunakan, maka semakin banyak juga jumlah sinyal pantul yang menginterferensi sinyal yang diinginkan di penerima.]]>
<![CDATA[Desain Program Simulasi Unjuk Kerja Kode Pn Pada Kanal Multipath Fading ]]>
<![CDATA[Putra Yudhanata Pratama]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[Ni Made Ary Esta Dewi Wirastuti]]>;
<![CDATA[I Gusti Agung Komang Diafari Djuni Harta]]>
<![CDATA[ Matrix : Jurnal Manajemen Teknologi dan Informatika Vol 10 No 1 (2020): MATRIX - Jurnal Manajemen Teknologi dan Informatika ]]>
Publisher : <![CDATA[Unit Publikasi Ilmiah, P3M Politeknik Negeri Bali ]]>
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DOI: 10.31940/matrix.v10i1.1834
<![CDATA[Halangan pada Line of Sight (LOS) dapat menyebabkan difraksi (pembelokan), refleksi (pemantulan), dan scattering (penghamburan) pada sinyal informasi dimana akan mengurangi kualitas sinyal informasi yang diterima pada sisi penerima. Hal tersebut mengakibatkan adanya sifat konstruktif maupun destruktif pada sinyal di sisi penerima. Contoh sifat destruktif yang sering terjadi yakni fading dan delay. Sistem penerima correlation receiver diimplementasikan guna mengatasi masalah yang timbul akibat efek dari multipath fading. Untuk memperoleh sinyal dengan nilai error minimum, maka diperlukan analisis terkait proses transmisi pada masing-masing komponen multipath. Hasil analisis diperoleh bahwa unjuk kerja dari Kode PN (Pseudo Noise) pada kanal frequency selective fading yang lebih baik adalah variasi komponen multipath = 3 dibandingkan dengan variasi komponen multipath = 6 dan yang paling buruk adalah variasi komponen multipath = 7. Hal ini dibuktikan dengan melihat nilai Bit Error Rate (BER) saat Energy Per Bit To Noise Power Spectral Density Ratio (Eb/No) = 10 dengan komponen multipath = 3 memiliki nilai BER 0,00368, sedangkan komponen multipath = 6 dan komponen multipath = 7 memiliki nilai BER berturut – turut adalah 0,00386 dan 0,00507. Berdasarkan hasil analisis tersebut dapat diambil simpulan bahwa jumlah komponen multipath yang ada berpengaruh terhadap kualitas sinyal yang diterima.]]>
<![CDATA[PENGHITUNG JUMLAH ORANG MASUK DAN KE LUAR BERBASIS IoT DILENGKAPI PENGUKUR SUHU TUBUH ]]>
<![CDATA[I Putu Indra Pramana Yoga]]>;
<![CDATA[I Gusti Agung Komang Diafari Djuni H]]>;
<![CDATA[Nyoman Pramaita]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i01.p19
<![CDATA[As a precaution against the spread of the Covid-19 virus in public facilities, thegovernment requires to measure temperature and limit the number of people in order to preventnew clusters, especially in crowded centers. To reduce this problem, a prototype of the numberof people entering and leaving through the IoT-based door will be made using an ultrasonicsensor HCSR-04 equipped with a body temperature meter. This system works from reading thetemperature sensor value MLX90614, when the temperature is above 37oC then the doorremains closed and when the temperature is below 37oC the door will open, ultrasonic sensor 1is placed on the entrance side and ultrasonic sensor 2 is placed on the exit side, if the sensor 1receives one input, the system will automatically add a variable number of visitors, if sensor 2receives one input, the system will automatically reduce the variable number of visitors, andwhen the room is full of 10 people, the servo motor will close the door automatically, informationon body temperature and total person data will be displayed on the LCD and the Blynkapplication and sent to the MySql webserver database in real time. The prototype system thathas been made is capable of detecting body temperature and counting the number of peopleentering and leaving the door according to the design.]]>
<![CDATA[UNJUK KERJA KODE ORTHOGONAL M-SEQUENCE DALAM SISTEM DIRECT SEQUENCE SPREAD SPECTRUM MELALUI KANAL MULTIPATH FA ]]>
<![CDATA[Komang Gede Widi Adnyana]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[I Made Oka Widyantara]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i04.p1
<![CDATA[Multipath and multi-user interference are the main challenges in wireless communication systems. This has become a driving force for the development of data transmission technology that is focused to overcome these problems, one of which is spread spectrum. Spread spectrum is applied to CDMA technology which has the limitations of MAI, so a spreading code is required with specifications that have a very low cross-correlation value as in the orthogonal m-sequence code. In this study, simulate the orthogonal m-sequence code with a length of 8 chips on a multipath fading channel using the Direct Sequence Spread Spectrum system with aims of assessing the performance of the orthogonal m-sequence code on a multipath fading channel, based on the effect of changes in the number of multipath components. The research method used is a Monte Carlo simulation on simulink with the output data in the form of a graph of the comparison value of BER with Eb/No. The results show that on the flat fading channel with the number of components multipath 1, the BER value of the simulation results is in accordance with the BER theory so that the simulation is valid and can be applied to frequency selective fading channels. In the frequency selective fading channel with the number of multipath components 4,6, and 8, the best performance was shown in the multipath 4 component with the smallest BER value, this was influenced by the ACF and CCF values so that the multipath 4 component had the lowest ISI and interference between users.]]>
<![CDATA[DESAIN SIMULASI PERFORMANSI KODE ORTHOGONAL GOLD PADA KANAL MULTIPATH FADING ]]>
<![CDATA[Arzalia Khairunnisa Yasmine]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[N.M.A.E.D Wirastuti]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i04.p2
<![CDATA[Improved wireless communication system generate the various advanced technologies, one of which is spread spectrum technique. This technique working by multiplying dots bits information which have a large period with spreading code that have a smaller periode, which makes bit periode will follow the code periode. In order to maximize performance of this technique, an efficient code is required to reduce the occurrence of interference. The purpose of this study was to see how the variation of multipath components affected the work of the orthogonal gold code. This study compares BER vs. Eb/No for multipath components 10, 15, and 20 using code length 32, 8 users, and BPSK modulation. The multipath component 10 exhibits the best BER value, which is impacted by the degree of interference indicated by the size of the ACF value. and CCF on a non-zero shift.]]>
<![CDATA[DESAIN SIMULASI UNJUK KERJA BARKER CODE PADA KANAL FREQUENCY SELECTIVE FADING ]]>
<![CDATA[I Putu Dio Gangga Saskara]]>;
<![CDATA[Nyoman Pramaita]]>;
<![CDATA[I Gusti Agung Komang Diafari Djuni H]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i03.p2
<![CDATA[The signal that arrives at the receiving end is the sum of the various transmissions passed by the signal (multipath) which is influenced by the channel so that there is signal interference. Many innovations have been made so that the received signal can have high security, one of which is spread spectrum with a dual access scheme to increase the ability of many spectrum users in a limited number without disturbing one another. This simulation was tested with the aim of spreading the spectrum with different code lengths for the same bit length of information, and observed from the change in the BER value obtained from the MATLAB 2018a simulation results to find out how the barker code performance on the frequency selective fading channel on a single user. The analysis of this research is obtained from the simulation results in the form of a graph that shows the BER value compared to Eb/No. The BER value shown by the barker code performance on the flat fading channel, which is compared based on the existing flat theory, shows the graph trend and the BER value generated from the simulation is close to the theoretical flat BER value. The performance of the barker code on the frequency selective fading channel is carried out by varying the number of multipath components 7, 5, and 3. The simulation results show that multipath 3 is the best with the smallest bit error value compared to multipath 7 and 5. Barker code performance is strongly influenced by the number of multipath components, the more the number of multipath components, the more performance of the barker code bit error, and vice versa.]]>
