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2009 International Conference on Electrical, Communications, and Computers最新文献

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On Some Aspects of a Microphone Array Prototype for Visualization of Sound 一种用于声音可视化的麦克风阵列原型的若干问题
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.48
M. Bravo-Zanoguera, Cesar Amaro-Hernandez
{"title":"On Some Aspects of a Microphone Array Prototype for Visualization of Sound","authors":"M. Bravo-Zanoguera, Cesar Amaro-Hernandez","doi":"10.1109/CONIELECOMP.2009.48","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.48","url":null,"abstract":"This paper presents the design of a two-dimensional array of microphones for the implementation of nearfield acoustic holography (NAH) that allows the visualization and location of sound sources. The array corresponds to the holographic plane, where data is collected to reconstruct an acoustic field in another plane parallel to the holographic plane. Here, the basic theory and the experimental results obtained from the sound field generated by the operation of a motor are presented, visualizing the parts where noises are located.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129097900","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: 1
HTS MTM Bandpass Directional Filters for Multiplexing and Wireless Applications 用于多路复用和无线应用的HTS MTM带通定向滤波器
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.9
H. Lobato-Morales, A. Corona‐Chavez, J. Rodríguez-Asomoza
{"title":"HTS MTM Bandpass Directional Filters for Multiplexing and Wireless Applications","authors":"H. Lobato-Morales, A. Corona‐Chavez, J. Rodríguez-Asomoza","doi":"10.1109/CONIELECOMP.2009.9","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.9","url":null,"abstract":"The design and simulation of two High-Temperature Superconducting (HTS) Metamaterial (MTM) directional filters for wireless communications is presented. The four-port filters present multiplexing characteristics and are designed using Composite-Right-Left-Handed (CRLH) zeroth-order closed loop resonators, which present small dimensions and suppression of harmonic resonances. The structure presents a bandpass behavior at one port and its complementary reject band response at other port. A second filter is further miniaturized by using a MTM transmission line (TL) instead of a conventional one. The simulated responses are presented showing good results.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132661705","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: 1
A Power-Line Communication Modem Based on OFDM 一种基于OFDM的电力线通信调制解调器
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.30
H. A. Garcia-Baleon, V. Aquino
{"title":"A Power-Line Communication Modem Based on OFDM","authors":"H. A. Garcia-Baleon, V. Aquino","doi":"10.1109/CONIELECOMP.2009.30","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.30","url":null,"abstract":"In this paper, we present the design and implementation of a PLC (Power-Line Communication) Modem based on Orthogonal Frequency Division Multiplexing (OFDM). The PLC device implements OFDM in both transmitter and receiver using VHDL programming. The OFDM processor is synthesized in a Field Programmable Gate Array (FPGA) that acts as a Core Processor in the PLC Modem. Furthermore, the prototype includes the design and implementation of the stages needed to inject the signal into the power-line and to recover the same signal in other point of the PLC network. An analysis of several noise sources show that the PLC Modem performance produced a bit error percentage of 4.46% in the worst case, while 0.89% in the best case for the transmission/reception tested.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131199267","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: 3
Stability Analysis of Different Design Strategies for Analogue Network Design 模拟网络设计中不同设计策略的稳定性分析
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.25
A. Michua, T. Markina, A. Zemliak
{"title":"Stability Analysis of Different Design Strategies for Analogue Network Design","authors":"A. Michua, T. Markina, A. Zemliak","doi":"10.1109/CONIELECOMP.2009.25","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.25","url":null,"abstract":"The design process for analog network design is formulated as a dynamic controllable system. A special control vector is defined to redistribute the compute expensive between a network analysis and a parametric optimization. This redistribution permits the minimization of a computer time. The problem of the minimal-time network design can be formulated in this case as a classical problem of the optimal control for some functional minimization. The conception of the Lyapunov function of dynamic controllable system is used to analyze the principal characteristics of the design process. The analysis of the Lyapunov function and its time derivative gives a possibility to compare the different design strategies.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132906385","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: 0
Evaluation of UWB Interference at WiMax Systems Based on a Generalized Pulse Waveform 基于广义脉冲波形的WiMax系统超宽带干扰评估
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.45
Á. G. Andrade, Victor Parra
{"title":"Evaluation of UWB Interference at WiMax Systems Based on a Generalized Pulse Waveform","authors":"Á. G. Andrade, Victor Parra","doi":"10.1109/CONIELECOMP.2009.45","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.45","url":null,"abstract":"In this paper the coexistence issue between the UWB systems and Wi-Max/IEEE-802.16 systems has been investigated. The aim is to evaluate the impact that the interference resulting from a realistic UWB hot spot scenario may have on the performance of a Wi-Max/IEEE-802.16 receiver. A mathematical model is developed through which the performance of the interference power produced by the UWB hot spot can be calculated. We use a pulse waveform represented as a generalized form of Gaussian pulse family that can be used in Ultra Wide Band (UWB) impulse radio systems. This pulse waveform ensures that the UWB spectrum mask established by the Federal Communications Commission (FCC) is met. The results against which the UWB interference is assessed are also developed using the specifications of Wi-Max/IEEE-802.16 systems. Several simulations have been done to both validate the analytical results and calculate the UWB interference.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"40 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114027858","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: 9
A New Stability Index for Metro Lines 一种新的地铁线路稳定性指标
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.54
Aránzazu Berbey Alvarez, R. Caballero, R. Galán, J. D. Sanz-Bobi
{"title":"A New Stability Index for Metro Lines","authors":"Aránzazu Berbey Alvarez, R. Caballero, R. Galán, J. D. Sanz-Bobi","doi":"10.1109/CONIELECOMP.2009.54","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.54","url":null,"abstract":"In this work a new method to analyze the stability of metro lines with respect to a previously constructed time schedule is presented. For this purpose, metro lines are modelled using a nonlinear real time discrete space state representation and then the Lyapunov-based stability analysis is applied considering time delays of trains as disturbances. As a result a new set of indexes which relate time delays with the validity of the actual time schedule when falling inside a particular ‘stability area’ are defined. Results obtained in a simulated environment show that the new stability indexes are able to evaluate quantitatively and qualitatively the effects of saturation in metro lines as well as predict the need for rescheduling","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122672940","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: 6
An Authentication Protocol for Sensor Networks Using Pairings 基于配对的传感器网络认证协议
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.14
Moises Salinas R., Gina Gallegos G., G. S.
{"title":"An Authentication Protocol for Sensor Networks Using Pairings","authors":"Moises Salinas R., Gina Gallegos G., G. S.","doi":"10.1109/CONIELECOMP.2009.14","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.14","url":null,"abstract":"Wireless Sensor Networks are a rapid grown technology trying to adopt several new applications. Such applications have brought new challenges to the table and in consequence there are services that became to be critical factors, just like authenticity in WSN. Node authenticity in WSN is a commodity service that allows verifying that the message source is a node belonging to the sensor network, providing a countermeasure against node impersonation and message’s injection. However, such service is considered too expensive when public key cryptography is involved. In this paper an authentication protocol for WSN is described with an estimation of costs on operations over the base field.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132804987","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: 1
Improve Decision Support Using Adaptive Data Mining 利用自适应数据挖掘改进决策支持
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.33
C. A. O. Zezzatti, Fernando Montes-González, Jons Sanchez, Hector Castaneda, J. S. González-Campos, Julio César Ponce Gallegos
{"title":"Improve Decision Support Using Adaptive Data Mining","authors":"C. A. O. Zezzatti, Fernando Montes-González, Jons Sanchez, Hector Castaneda, J. S. González-Campos, Julio César Ponce Gallegos","doi":"10.1109/CONIELECOMP.2009.33","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.33","url":null,"abstract":"Nowadays is necessary to take decisions based in the knowledge obtained through advanced techniques of date analysis, decision tree is an interesting option. In this work a Rich Internet Application to visualize a decision tree in a mobile device is presented. This application lets deploy the complete tree decision and the categorization of new registers, with this tool is possible to take decisions based in the analysis of data in an extended data base. The application is developed with the framework “ZK” and requires a mobile device with internet connection capability and a web browser that support this kind of applications like: “Opera Mobile” or “Safari Mobile”.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129105836","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: 0
Control System Design and Simulation of an AC/DC - DC/DC - DC/AC Power Converter for a Permanent Magnet Wind Power Generator in Rural Power Generation 农村发电用永磁风力发电机AC/DC - DC/DC - DC/AC变换器控制系统设计与仿真
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.59
R. Morales-Caporal, R. Ordoñez-Flores, Marco A. Morales, V. Flores
{"title":"Control System Design and Simulation of an AC/DC - DC/DC - DC/AC Power Converter for a Permanent Magnet Wind Power Generator in Rural Power Generation","authors":"R. Morales-Caporal, R. Ordoñez-Flores, Marco A. Morales, V. Flores","doi":"10.1109/CONIELECOMP.2009.59","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.59","url":null,"abstract":"This paper deals with the voltage and frequency control of the generated electricity from a permanent magnet wind-turbine. The wind turbine is directly connected to a permanent magnet synchronous generator in order to avoid the losses associated to the gearbox so that only an AC/DC/AC power converter is used to control the variable voltage and frequency. The AC/DC converter is a three phases diode bridge rectifier, the DC/DC converter consists of a Boost converter which keeps the voltage level nearly constant over the whole wind speeds to supply satisfactory a single-phase DC/AC inverter which has four insulated gate bipolar transistors since a single-phase output with constant voltage and frequency is desired.The simulation of the whole system including the permanent magnet synchronous generator and it is verified that the design of the AC/DC/AC power converter and its control strategy work very well and can be readily used in RL loads in rural areas.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127732172","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
MISMA: An Approach to Mexican Information Security Methodology and Architecture for PYMES MISMA:一种墨西哥信息安全方法论和PYMES架构的方法
2009 International Conference on Electrical, Communications, and Computers Pub Date : 2009-02-26 DOI: 10.1109/CONIELECOMP.2009.10
J. Ruiz-Vanoye, Ismael R. Ponce-Medellin, O. Díaz-Parra, José Crispín Zavala Díaz, José A. Zárate Marceleno, A. Fuentes-Penna
{"title":"MISMA: An Approach to Mexican Information Security Methodology and Architecture for PYMES","authors":"J. Ruiz-Vanoye, Ismael R. Ponce-Medellin, O. Díaz-Parra, José Crispín Zavala Díaz, José A. Zárate Marceleno, A. Fuentes-Penna","doi":"10.1109/CONIELECOMP.2009.10","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2009.10","url":null,"abstract":"In Mexico the computer science security is growing, but not therefore the initiatives of law nor the standards in the matter of computer science security, although they exist international standard of computer science security the recommendations are not adopted due to infrastructure differences and that contain there, and that cannot be adopted by the Mexican companies. The main idea to propose a methodology and architecture for the small and medium companies is with the purpose of providing a tool that allows the companies to count on basic a computer science security system that allows diminishing the security problems.","PeriodicalId":292855,"journal":{"name":"2009 International Conference on Electrical, Communications, and Computers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129849945","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: 1
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