Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079673
Victor Apaza-Mamani, Efrain Zenteno-Bolaños
A low-cost transceiver for short-range PLC audio communications is designed and developed. This design relies on the measured noise and interference of PLC domestic channels over a long period of time. Several design choices are grounded for reaching a low cost solution capable to transmit audio with throughput higher than 200 Kbps. The results show the feasibility for the transceiver implementation with costs lower than 13.0 dollars.
{"title":"High-Speed audio communications in domestic power line channels","authors":"Victor Apaza-Mamani, Efrain Zenteno-Bolaños","doi":"10.1109/INTERCON.2017.8079673","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079673","url":null,"abstract":"A low-cost transceiver for short-range PLC audio communications is designed and developed. This design relies on the measured noise and interference of PLC domestic channels over a long period of time. Several design choices are grounded for reaching a low cost solution capable to transmit audio with throughput higher than 200 Kbps. The results show the feasibility for the transceiver implementation with costs lower than 13.0 dollars.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132942049","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079644
J. Arenas, Paula C. Useche Murillo, Robinson Jimenez Moreno
This paper presents the design of a convolutional neural network architecture using the MatConvNet library for MATLAB in order to achieve the recognition of 2 classes of hand gestures: ”open” and ”closed”. Six architectures were implemented to which their hyperparameters and depth were varied to observe their behavior through the validation error in the training and accuracy in the estimation of each one of the set classes, which was evaluated by a matrix of confusion. Given each of these results, the neural network with the best performance was chosen.
{"title":"Convolutional neural network architecture for hand gesture recognition","authors":"J. Arenas, Paula C. Useche Murillo, Robinson Jimenez Moreno","doi":"10.1109/INTERCON.2017.8079644","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079644","url":null,"abstract":"This paper presents the design of a convolutional neural network architecture using the MatConvNet library for MATLAB in order to achieve the recognition of 2 classes of hand gestures: ”open” and ”closed”. Six architectures were implemented to which their hyperparameters and depth were varied to observe their behavior through the validation error in the training and accuracy in the estimation of each one of the set classes, which was evaluated by a matrix of confusion. Given each of these results, the neural network with the best performance was chosen.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133500162","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079638
H. Nieto-Chaupis
In this paper, we have performed a closed-form calculation of the radiation pattern of a base station antenna by using Ad Hoc Bessel-Fourier expansion. Once the coordinates system is fixed, we proceed to derived the magnetic potential vector underlining the complex part which is subsequently expanded in a Bessel-Fourier series. Since the radiation intensity is proportional to the square of the polar component of electric field, we used the well-known relation $vec{E} approx vec{nabla}times vec{nabla} times vec{A}$. It gives capabilities to apply antenna data to the resulting closed-form expression for obtaining numerical estimations of the possible exposure levels. For this end, we measured the specific absorption radiation (SAR) to evaluate and discard possible effects of contamination by antenna radiation in the vicinity of the emission source. For a source of 2.0 GHz and 1.5 Vm−1, the estimation of SAR reaches up to 30 10−6 W Kg−1.
在本文中，我们用自组织贝塞尔-傅立叶展开对基站天线的辐射方向图进行了封闭式计算。一旦坐标系固定，我们继续推导复部分下面的磁势向量，然后将其展开为贝塞尔-傅里叶级数。由于辐射强度与电场极分量的平方成正比，我们使用了众所周知的关系$vec{E} approx vec{nabla}times vec{nabla} times vec{A}$。它提供了将天线数据应用于所得到的封闭形式表达式的能力，以获得可能暴露水平的数值估计。为此，我们测量了特定吸收辐射(SAR)，以评估和排除发射源附近天线辐射污染的可能影响。当源为2.0 GHz、1.5 Vm−1时，SAR估计值可达30 10−6 W Kg−1。
{"title":"Radiation intensity of base station antenna from Ad Hoc complex bessel functions series","authors":"H. Nieto-Chaupis","doi":"10.1109/INTERCON.2017.8079638","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079638","url":null,"abstract":"In this paper, we have performed a closed-form calculation of the radiation pattern of a base station antenna by using Ad Hoc Bessel-Fourier expansion. Once the coordinates system is fixed, we proceed to derived the magnetic potential vector underlining the complex part which is subsequently expanded in a Bessel-Fourier series. Since the radiation intensity is proportional to the square of the polar component of electric field, we used the well-known relation $vec{E} approx vec{nabla}times vec{nabla} times vec{A}$. It gives capabilities to apply antenna data to the resulting closed-form expression for obtaining numerical estimations of the possible exposure levels. For this end, we measured the specific absorption radiation (SAR) to evaluate and discard possible effects of contamination by antenna radiation in the vicinity of the emission source. For a source of 2.0 GHz and 1.5 Vm−1, the estimation of SAR reaches up to 30 10−6 W Kg−1.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115577437","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079717
S. Barros, J. Bazzo, Orlando dos Reis Pereira, Dick Carrillo, Jorge Seki
Wireless technology is one of the enabler for Internet of Things (IoT) with a tremendous expected growth in the next years. The variety of wireless technologies to support different requirements like coverage or network architecture transform the wireless industry in a very competitive segment. There are many solutions for short and middle range IoT communication however, there is not still a long range solution that is broader adopted by the industry, which is generally know as Low-Power Wide-Area (LPWAN) technology. There LPWAN has not been designed for mobile network but the 3rd Generation Partnership Project (3GPP), that is responsible for 3G and 4G standardization, created the new technology that is named Narrow-Band IoT (NB-IoT) which intends to be widely adopted by the Operators. This article presents a summary of the NB-IoT specifications and some comparisons with others LPWAN technologies.
{"title":"Evolution of long term narrowband-IoT","authors":"S. Barros, J. Bazzo, Orlando dos Reis Pereira, Dick Carrillo, Jorge Seki","doi":"10.1109/INTERCON.2017.8079717","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079717","url":null,"abstract":"Wireless technology is one of the enabler for Internet of Things (IoT) with a tremendous expected growth in the next years. The variety of wireless technologies to support different requirements like coverage or network architecture transform the wireless industry in a very competitive segment. There are many solutions for short and middle range IoT communication however, there is not still a long range solution that is broader adopted by the industry, which is generally know as Low-Power Wide-Area (LPWAN) technology. There LPWAN has not been designed for mobile network but the 3rd Generation Partnership Project (3GPP), that is responsible for 3G and 4G standardization, created the new technology that is named Narrow-Band IoT (NB-IoT) which intends to be widely adopted by the Operators. This article presents a summary of the NB-IoT specifications and some comparisons with others LPWAN technologies.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129541285","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079683
A. Rojas-Moreno, G. Perez-Valenzuela
This work implements two trajectory tracking control systems for a differential drive WMR (Wheeled Mobile Robot). The first control system employs an IO PD (Integer Order Proportional Derivate) controller, while the second uses a FO (Fractional Order) PD controller. The IO PD controller becomes a FO PD controller by making fractional the derivative term. That is, replacing the Laplace operator s by sm, where m is a fractional number between 0 and 1. Experimental results demonstrated that the IO and FO PD controllers ensure posture stability of the feedback control system as well as a good control performance. However, the FO PD control system shown a better tracking of the desired trajectory. WMR kinematics was employed to obtain the required linear and angular velocities.
{"title":"Fractional order tracking control of a wheeled mobile robot","authors":"A. Rojas-Moreno, G. Perez-Valenzuela","doi":"10.1109/INTERCON.2017.8079683","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079683","url":null,"abstract":"This work implements two trajectory tracking control systems for a differential drive WMR (Wheeled Mobile Robot). The first control system employs an IO PD (Integer Order Proportional Derivate) controller, while the second uses a FO (Fractional Order) PD controller. The IO PD controller becomes a FO PD controller by making fractional the derivative term. That is, replacing the Laplace operator s by sm, where m is a fractional number between 0 and 1. Experimental results demonstrated that the IO and FO PD controllers ensure posture stability of the feedback control system as well as a good control performance. However, the FO PD control system shown a better tracking of the desired trajectory. WMR kinematics was employed to obtain the required linear and angular velocities.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"34 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132505554","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079689
David Zabala-Blanco, G. Campuzano, César A. Azurdia-Meza
Intercarrier interference severely limits orthogonal frequency-division multiplexing (OFDM) performance. Nevertheless, it can be mitigated by using Nyquist-I pulse shaping filters. In OFDM-based systems, we assess the exponential linear (EL) pulse and compare it with the best Nyquist-I pulses. EL pulse is characterized by having one additional design parameter, known as β. It is first optimized through extensive numerical simulations. We discovered that EL pulse outperforms the rest of pulses in terms of the bit error rate. This finding was explained by its frequency response, which presents both a broad main-lobe and negligible lateral-lobes. For all pulse shaping functions, we finally determined the signal-to-noise ratio and frequency offset requirements in a real scenario.
{"title":"BER reduction in OFDM systems susceptible to ICI using the exponential linear pulse","authors":"David Zabala-Blanco, G. Campuzano, César A. Azurdia-Meza","doi":"10.1109/INTERCON.2017.8079689","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079689","url":null,"abstract":"Intercarrier interference severely limits orthogonal frequency-division multiplexing (OFDM) performance. Nevertheless, it can be mitigated by using Nyquist-I pulse shaping filters. In OFDM-based systems, we assess the exponential linear (EL) pulse and compare it with the best Nyquist-I pulses. EL pulse is characterized by having one additional design parameter, known as β. It is first optimized through extensive numerical simulations. We discovered that EL pulse outperforms the rest of pulses in terms of the bit error rate. This finding was explained by its frequency response, which presents both a broad main-lobe and negligible lateral-lobes. For all pulse shaping functions, we finally determined the signal-to-noise ratio and frequency offset requirements in a real scenario.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127890289","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079712
José Emmanuel Cruz de la Cruz, Ing. Christian Augusto Romero Goyzueta
This research provides a concise answer to how to organize a strong infrastructure of information technologies for high availability based on open source software, it's necessary for large organizations to provide high availability, the work will focus on explaining the procedures to provide services for users 24 hours the 365 days. Centralization is a major weakness today because is the only source of services and if it fails or is congested, the services is completely down. The new design of a high availability system, with the use of High Availability Proxy and the load balancing with Domain Name Service, both using the round robin algorithm, develop a new system easy to manage, flexible and scalable. The results of the implementation of the design were satisfactory because they were tested in a laboratory prototype distributing the total requests of the clients between the numbers of servers on the system.
{"title":"Design of a high availability system with HAProxy and domain name service for web services","authors":"José Emmanuel Cruz de la Cruz, Ing. Christian Augusto Romero Goyzueta","doi":"10.1109/INTERCON.2017.8079712","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079712","url":null,"abstract":"This research provides a concise answer to how to organize a strong infrastructure of information technologies for high availability based on open source software, it's necessary for large organizations to provide high availability, the work will focus on explaining the procedures to provide services for users 24 hours the 365 days. Centralization is a major weakness today because is the only source of services and if it fails or is congested, the services is completely down. The new design of a high availability system, with the use of High Availability Proxy and the load balancing with Domain Name Service, both using the round robin algorithm, develop a new system easy to manage, flexible and scalable. The results of the implementation of the design were satisfactory because they were tested in a laboratory prototype distributing the total requests of the clients between the numbers of servers on the system.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126778823","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079643
Lei Zhang
This paper presents an artificial neural network (ANN) model based design for Hénon chaotic systems, and its equivalent hardware model for hardware co-simulation using Field Programmable Gate Arrays (FPGA). Chaotic generators can be used for the study of chaotic behaviors of brain activities captured by Electroencephalogram (EEG). The ANN model is designed with different fixed-point data format and evaluated using MATLAB and Simulink simulation. The chaotic level is measured by calculating the Lyapunov exponent over a certain range of selected system parameters. The ANN models are designed with the consideration of hardware implementation on Field Programmable Gates Array (FPGA) device using fixed-point data format.
{"title":"Artificial neural network model-based design and fixed-point FPGA implementation of hénon map chaotic system for brain research","authors":"Lei Zhang","doi":"10.1109/INTERCON.2017.8079643","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079643","url":null,"abstract":"This paper presents an artificial neural network (ANN) model based design for Hénon chaotic systems, and its equivalent hardware model for hardware co-simulation using Field Programmable Gate Arrays (FPGA). Chaotic generators can be used for the study of chaotic behaviors of brain activities captured by Electroencephalogram (EEG). The ANN model is designed with different fixed-point data format and evaluated using MATLAB and Simulink simulation. The chaotic level is measured by calculating the Lyapunov exponent over a certain range of selected system parameters. The ANN models are designed with the consideration of hardware implementation on Field Programmable Gates Array (FPGA) device using fixed-point data format.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121408496","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079678
A. Rojas-Moreno, Cristian Cuevas-Condor
This work compares two feedback control systems to levitate a magnetic disc in a desired position. The first control system uses a PD (Proportional Derivative) controller, while the second control system employs a PID (Proportional Integral Derivative) controller. A Maglev (Magnetic Levitation) apparatus is used to test the PD and PID control systems experimentally. Simulation studies and experimental results will demonstrate that the PID control system improves the design specifications of the PD control system by reducing the steady–state error and the settling time.
{"title":"PD and PID control of a maglev system an experimental comparative study","authors":"A. Rojas-Moreno, Cristian Cuevas-Condor","doi":"10.1109/INTERCON.2017.8079678","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079678","url":null,"abstract":"This work compares two feedback control systems to levitate a magnetic disc in a desired position. The first control system uses a PD (Proportional Derivative) controller, while the second control system employs a PID (Proportional Integral Derivative) controller. A Maglev (Magnetic Levitation) apparatus is used to test the PD and PID control systems experimentally. Simulation studies and experimental results will demonstrate that the PID control system improves the design specifications of the PD control system by reducing the steady–state error and the settling time.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123102725","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}
Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079690
M. Campos-Trinidad, J. D. Carpio, E. López-Zapata, R. Salazar-Arévalo
The present paper shows the work done on part of the design of a robotic humanoid arm, whose objective is to perform the transliteration of sound language, commonly used, to sign language, used by people with hearing disabilities. Through a dynamic analysis it has been obtained the necessary torque for each joint in the arm to perform the correct movement of the servo motors. In addition to this, a script has been made in order to do some tests for speech-recognition and an Android application as a tool for an easier way to process it. For the control of the finger, it was designed an optimal nonlinear controller, which has as state variables the angle and the angular velocity, aiming only to the manipulation of the angle or position of the DC motor, for the purpose of an appropriate movement of the fingers.
{"title":"Optimal control of a robotic system and software development for speech-to-sign language transliterating applications","authors":"M. Campos-Trinidad, J. D. Carpio, E. López-Zapata, R. Salazar-Arévalo","doi":"10.1109/INTERCON.2017.8079690","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079690","url":null,"abstract":"The present paper shows the work done on part of the design of a robotic humanoid arm, whose objective is to perform the transliteration of sound language, commonly used, to sign language, used by people with hearing disabilities. Through a dynamic analysis it has been obtained the necessary torque for each joint in the arm to perform the correct movement of the servo motors. In addition to this, a script has been made in order to do some tests for speech-recognition and an Android application as a tool for an easier way to process it. For the control of the finger, it was designed an optimal nonlinear controller, which has as state variables the angle and the angular velocity, aiming only to the manipulation of the angle or position of the DC motor, for the purpose of an appropriate movement of the fingers.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122255490","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}
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