2015 International Seminar on Intelligent Technology and Its Applications (ISITIA)最新文献_第6页

Implementation and performance evaluation of orthogonal frequency division multiplexing (OFDM) using WARP 基于WARP的正交频分复用(OFDM)实现及性能评价

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220024

T. Suryani, Suwadi, Hasan, S. Yoga

{"title":"Implementation and performance evaluation of orthogonal frequency division multiplexing (OFDM) using WARP","authors":"T. Suryani, Suwadi, Hasan, S. Yoga","doi":"10.1109/ISITIA.2015.7220024","DOIUrl":"https://doi.org/10.1109/ISITIA.2015.7220024","url":null,"abstract":"The main problem in high data rate transmision is frequency selective fading due to multipath propagation. This fading causes deep fade on signal spectrum at one particular frequency. To overcome this problem, many researchers proposed a multi-carrier technique, which divides wideband signal bandwidth into multiple narrowband signal before transmitted using certain number of subcarriers. By using this technique, the depth fade can be localized, hence only one subcarrier will be affected such that the number of error bit can be minimize. Orthogonal Frequency Division Multiplexing (OFDM) is a form of multi-carrier technique which uses bandwidth effectively. This OFDM system can be implemented on Wireless Open-Access Research Platform (WARP) that is one of the Software Defined Radio (SDR). By implementing OFDM on WARP module, the bit error rate (BER) system performance can be analysis in the real channel. The implementation of OFDM technique on WARP modul is based on IEEE 802.11 standard. If the range between transmitter (Tx) and receiver (Rx) short enough (less than 10 m), the distance variation didn't affect the BER performance significantly. Whereas, if there is an obstacle between transmitter and receiver, the BER will increase significantly compared no obstacle (dear condition) for short range Tx-Rx distance. For example, BER is 0 in clear condition when the transmit power is -26.125 dBm, meanwhile the BER value is 9.3 × 10-6 in obstacle condition and for short range distance, the objects near propagation path provide reflected signal power with significant contribution.","PeriodicalId":124449,"journal":{"name":"2015 International Seminar on Intelligent Technology and Its Applications (ISITIA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123080427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Naïve Random Neighbor Selection for memory based Collaborative Filtering Naïve基于内存协同过滤的随机邻居选择

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220005

A. Wibowo, Auliana Rahmawati

引用次数: 3

Noun ontology generation from Wikipedia article using Map Reduce with pattern based approach 使用基于模式的Map Reduce方法从维基百科文章中生成名词本体

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220009

Joan Santoso, James Nakoda Nugraha, E. M. Yuniarno, M. Hariadi

引用次数: 2

Energy efficiency in cognitive radio with cooperative MME (Maximum to Minimum Eigenvalue) spectrum sensing method 协同MME(最大到最小特征值)频谱感知方法在认知无线电中的能量效率

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220010

Syarifah Muthia Putri, Ir Sugihartono

引用次数: 5

Application search school location method using location based services (LBS) based on J2ME 应用搜索学校位置的方法，采用基于位置服务(LBS)的J2ME

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7219999

Wasum, A. Setiyono, Raimundus Sedo, S. Pramono

{"title":"Application search school location method using location based services (LBS) based on J2ME","authors":"Wasum, A. Setiyono, Raimundus Sedo, S. Pramono","doi":"10.1109/ISITIA.2015.7219999","DOIUrl":"https://doi.org/10.1109/ISITIA.2015.7219999","url":null,"abstract":"One of the most important aspects in the development of a city is the educational aspect. The quality of a good education sector in the city will also affect the quality of the city. The quality of education is also supported by a variety of factors, one of which is the school. Generally, people will be looking for good schools and proximity to the neighborhood. So that people can easily get the desired information about the school, in this study, school location search application using J2ME-based mobile phone, the case study is the city of Cirebon. This application is designed to enable the public to know the location of the nearest school with the user's location. This application, created using NetBeans and Java programming language. Java is very flexible and can be used on a variety of hardware platforms and easy to use. This application uses the method of location based services (LBS) that provides location information as well as the geographical position of the school on a mobile device. This application uses the latest technology, so as to facilitate the public to find out information about the means of education and promote education. This application contains several menus, they are Start, Help, About and Exit. On the Start menu there is a sub menu that are elementary, junior high, and high school, and have been tested and implemented on the Nokia X2 and Nokia C6.","PeriodicalId":124449,"journal":{"name":"2015 International Seminar on Intelligent Technology and Its Applications (ISITIA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123708239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Optimal controller for doubly fed induction generator (DFIG) using Differential Evolutionary Algorithm (DE) 基于差分进化算法的双馈感应发电机(DFIG)最优控制

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7219972

H. Suryoatmojo, A. Zakariya, Sjamsjul Anam, Arif Musthofa, I. Robandi

{"title":"Optimal controller for doubly fed induction generator (DFIG) using Differential Evolutionary Algorithm (DE)","authors":"H. Suryoatmojo, A. Zakariya, Sjamsjul Anam, Arif Musthofa, I. Robandi","doi":"10.1109/ISITIA.2015.7219972","DOIUrl":"https://doi.org/10.1109/ISITIA.2015.7219972","url":null,"abstract":"Variable-speed wind turbine (VST) with doubly-fed induction generator (DFIG) is one type of wind power that capable of producing electrical energy efficiently, capable of controlling real and reactive power generator, and improves the power quality. However, DFIG wind turbine has a variable-frequency AC / DC / AC converter (VFC) and IGBT switches that very sensitive to overcurrent which occur during transient disturbance. To protect the DFIG rotor circuit from excessive current, the rotor side converter will be blocked when VFC trip, so the DFIG detached from power system. Release of DFIG during disturbances can cause the production of electricity will be disrupted. By applying the proper control design, the quality of electricity supply during a disturbance can be corrected. In this research, the optimal design of PI controller in the rotor side converter (RSC) with DFIG wind turbine using the Differential Evolutionary Algorithm (DE) is proposed to improve the DFIG performance during disturbance. The simulation results indicate that the application of optimal design of PI controller on DFIG using DE can improve the performance of DFIG during disturbances. It shown by the significantly reducing of overshoot rotor current and voltage DC-link of DFIG with the optimized design when compared with the initial controller design system.","PeriodicalId":124449,"journal":{"name":"2015 International Seminar on Intelligent Technology and Its Applications (ISITIA)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125149754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Design of microstrip patch antenna based on Complementary Split Ring Resonator metamaterial for WiMAX applications 基于互补裂环谐振腔超材料的WiMAX微带贴片天线设计

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220016

Nurul Khaerani Hamzidah, E. Setijadi

引用次数: 7

Formal verification of integrated modular avionics (IMA) health monitoring using timed automata 使用时间自动机的集成模块化航空电子设备(IMA)健康监测的正式验证

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7219994

I. Budiyanto, A. I. Kistijantoro, B. Trilaksono

引用次数: 3

Design and simulation wimax networks 802.16d and 802.16e in Sleman 在Sleman中设计和模拟wimax 802.16d和802.16e网络

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7220017

Fidaus, I. Darmawan, H. Setiawan, Ferdyan Pradana

引用次数: 0

Design of decoupling and nonlinear PD controller for cruise control of a quadrotor 四旋翼飞行器巡航控制解耦与非线性PD控制器设计

2015 International Seminar on Intelligent Technology and Its Applications (ISITIA) Pub Date : 2015-05-20 DOI: 10.1109/ISITIA.2015.7219953

H. Arrosida, Rusdhianto Effendi, T. Agustinah, Josaphat Pramudijanto

引用次数: 4