Pub Date : 2014-07-17DOI: 10.1109/ECTICON.2014.6839811
R. Lerdwanittip, A. Namsang
This paper proposes design of a bandpass filter with wide harmonics suppression more than 4f0. Designing uses step-impedance resonators structure for operates the center frequency and uses stub loads for harmonics suppression. This bandpass filter is designed for support WLAN at 2.45 GHz. The measured results of the proposed bandpass filter have the insertion loss 1.00 dB and the return loss 29.26 dB at the center frequency 2.44 GHz. The harmonics suppression can be suppressed the insertion loss lower than -16 dB up to 10 GHz.
{"title":"Bandpass filters using stepped impedance resonators and stub loads for wide harmonics suppression","authors":"R. Lerdwanittip, A. Namsang","doi":"10.1109/ECTICON.2014.6839811","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839811","url":null,"abstract":"This paper proposes design of a bandpass filter with wide harmonics suppression more than 4f0. Designing uses step-impedance resonators structure for operates the center frequency and uses stub loads for harmonics suppression. This bandpass filter is designed for support WLAN at 2.45 GHz. The measured results of the proposed bandpass filter have the insertion loss 1.00 dB and the return loss 29.26 dB at the center frequency 2.44 GHz. The harmonics suppression can be suppressed the insertion loss lower than -16 dB up to 10 GHz.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114597937","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 : 2014-07-17DOI: 10.1109/ECTICON.2014.6839731
My Nguyen, Anh-Vu Dinh-Duc
This paper presents an algorithm for computing Sine and Cosine functions. The algorithm is developed for Fixed Point Processor. It only required fixed point multiplier 32×32 and fixed point adder. In addition, the algorithm uses Table Lookup method with the size of table being less than 2 Kbytes. Hence, computations are speed up significantly although it does not require many resources. One of the advantages points is that the algorithm computes Sine and Cosine functions without extra floating point units; it can compute fraction numbers under fixed point format. In some applications which require high accuracy in computing, this algorithm needs to be analyzed carefully to satisfy the error in computing. The algorithm's correction is verified successfully by ModelSim-Altera software.
{"title":"Hardware-based algorithm for Sine and Cosine computations using fixed point processor","authors":"My Nguyen, Anh-Vu Dinh-Duc","doi":"10.1109/ECTICON.2014.6839731","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839731","url":null,"abstract":"This paper presents an algorithm for computing Sine and Cosine functions. The algorithm is developed for Fixed Point Processor. It only required fixed point multiplier 32×32 and fixed point adder. In addition, the algorithm uses Table Lookup method with the size of table being less than 2 Kbytes. Hence, computations are speed up significantly although it does not require many resources. One of the advantages points is that the algorithm computes Sine and Cosine functions without extra floating point units; it can compute fraction numbers under fixed point format. In some applications which require high accuracy in computing, this algorithm needs to be analyzed carefully to satisfy the error in computing. The algorithm's correction is verified successfully by ModelSim-Altera software.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134138529","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 : 2014-07-17DOI: 10.1109/ECTICON.2014.6839875
Changhsi Wu, Tzu-yang Cheng
This article describes a low complexity digital time division multiple access (TDMA) baseband design for multi-biosensor nodes to a central processing node communication. The proposed communication protocol is achieved by introducing the control codes of tag/data type and the bit error rate (BER) is reduced by using the central read technology. A digital timing synchronization circuit is also proposed to achieve clock synchronization between biosensor nodes. The proposed TDMA baseband is fabricated successfully in a 0.18-μm CMOS process and designed with verilog HDL. With transmission data rate of 4Mbps based on 64MHz system clock and a 1.8 supply, the proposed baseband chips consume total 1.132mW which contains 680uW for biosensor node and 452uW for central processing node.
{"title":"A TDMA baseband design for physiological signal transmission application in 0.18-μm CMOS technology","authors":"Changhsi Wu, Tzu-yang Cheng","doi":"10.1109/ECTICON.2014.6839875","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839875","url":null,"abstract":"This article describes a low complexity digital time division multiple access (TDMA) baseband design for multi-biosensor nodes to a central processing node communication. The proposed communication protocol is achieved by introducing the control codes of tag/data type and the bit error rate (BER) is reduced by using the central read technology. A digital timing synchronization circuit is also proposed to achieve clock synchronization between biosensor nodes. The proposed TDMA baseband is fabricated successfully in a 0.18-μm CMOS process and designed with verilog HDL. With transmission data rate of 4Mbps based on 64MHz system clock and a 1.8 supply, the proposed baseband chips consume total 1.132mW which contains 680uW for biosensor node and 452uW for central processing node.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114587298","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 : 2014-07-17DOI: 10.1109/ECTICON.2014.6839829
Amulya Bhattarai, C. Charoenlarpnopparut, Prapun Suksompong, Patrachart Komolkiti
This paper develops policies for channel allocation in Cognitive Radio Networks (CRN). Game Theory is a tool which can be applied to allocate the limited resources among the selfish users in CRN. The distributed users actions and decisions can drive the system into an equilibrium state. We analyze the Nash Equilibrium (NE) solution for different CRN scenarios beginning from simple scenarios (`Fixed: 3 link, 2 ch' and `Fixed and Random: 5 link, 3 ch') then to a more complex one (`Random: 10 link, 4 ch'). We then develop policies for channel allocation for CRN based on the results obtained. These general policies can be used in other CRN scenarios to reach equilibrium solutions with less computation resources and time.
{"title":"Developing policies for channel allocation in Cognitive Radio Networks using Game Theory","authors":"Amulya Bhattarai, C. Charoenlarpnopparut, Prapun Suksompong, Patrachart Komolkiti","doi":"10.1109/ECTICON.2014.6839829","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839829","url":null,"abstract":"This paper develops policies for channel allocation in Cognitive Radio Networks (CRN). Game Theory is a tool which can be applied to allocate the limited resources among the selfish users in CRN. The distributed users actions and decisions can drive the system into an equilibrium state. We analyze the Nash Equilibrium (NE) solution for different CRN scenarios beginning from simple scenarios (`Fixed: 3 link, 2 ch' and `Fixed and Random: 5 link, 3 ch') then to a more complex one (`Random: 10 link, 4 ch'). We then develop policies for channel allocation for CRN based on the results obtained. These general policies can be used in other CRN scenarios to reach equilibrium solutions with less computation resources and time.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121491964","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839797
R. Chatthaworn, S. Chaitusaney
Nowadays, renewable energy resources (RERs) are greatly increasing. The intermittent characteristics of the RERs will affect the transmission network expansion planning (TNEP). Consequently, this paper presents a new problem formulation and solution procedure for the TNEP which can cope with the intermittent characteristics. Taguchi's Orthogonal Array Testing (TOAT) is used to select the scenarios which represent the loads and RERs uncertainties. In this paper, a new index “Renewable Energy Leak (REL)” is proposed to evaluate the “unutilized or leaked” renewable energy in the TNEP. For minimizing the investment cost of transmission network expansion, annual generator operation cost, and annual transmission line loss cost, the meta-heuristic Adaptive Tabu Search (ATS) algorithm is used while the system operating limits including REL index are taken into account as the optimization constraints. The proposed procedure is tested in a modified IEEE Reliability Test System 79. The results show that the proposed method is efficient and promising.
{"title":"Transmission network expansion planning considering renewable energy target","authors":"R. Chatthaworn, S. Chaitusaney","doi":"10.1109/ECTICON.2014.6839797","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839797","url":null,"abstract":"Nowadays, renewable energy resources (RERs) are greatly increasing. The intermittent characteristics of the RERs will affect the transmission network expansion planning (TNEP). Consequently, this paper presents a new problem formulation and solution procedure for the TNEP which can cope with the intermittent characteristics. Taguchi's Orthogonal Array Testing (TOAT) is used to select the scenarios which represent the loads and RERs uncertainties. In this paper, a new index “Renewable Energy Leak (REL)” is proposed to evaluate the “unutilized or leaked” renewable energy in the TNEP. For minimizing the investment cost of transmission network expansion, annual generator operation cost, and annual transmission line loss cost, the meta-heuristic Adaptive Tabu Search (ATS) algorithm is used while the system operating limits including REL index are taken into account as the optimization constraints. The proposed procedure is tested in a modified IEEE Reliability Test System 79. The results show that the proposed method is efficient and promising.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124253403","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839871
Phanom Tawdee
In this paper, an induction furnace employing with half bridge series resonant inverter built around IGBT as its switching devices suitable for melting 500 grams of brass is presented. Melting times of 10 minutes were achieved at a power level of approximately 4 kW. The operating frequency is automatically tracked to maintain a small constant lagging phase angle using dual phase lock loop when brass is melted. The coil voltage is controlled to protect the resonant capacitors. The experimental results are presented.
{"title":"An induction furnace employing with half bridge series resonant inverter","authors":"Phanom Tawdee","doi":"10.1109/ECTICON.2014.6839871","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839871","url":null,"abstract":"In this paper, an induction furnace employing with half bridge series resonant inverter built around IGBT as its switching devices suitable for melting 500 grams of brass is presented. Melting times of 10 minutes were achieved at a power level of approximately 4 kW. The operating frequency is automatically tracked to maintain a small constant lagging phase angle using dual phase lock loop when brass is melted. The coil voltage is controlled to protect the resonant capacitors. The experimental results are presented.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127352820","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839752
N. Illangarathne, M. Chinthaka
In today's modern world 3D modeling is used in numerous practical applications. Surveillance, Traffic Control, Driver Assistance & Biomedical imaging are few to name. Higher accuracy is vital in each application. Thus accuracy enhancing techniques are used in each case. Among many other techniques Extended Kalman Filter (EKF) is best known for its recursive least-mean square algorithm for error elimination and optimum estimation. Yet detecting and tracking of objects in an unknown territory using a mobile platform remains a challenge. The purpose of this paper is to provide a practical method for detecting, tracking and reconstructing of objects in an unknown territory with a higher accuracy using EKF.
{"title":"Object sensing, tracking and reconstructing using Extended Kalman Filter algorithm","authors":"N. Illangarathne, M. Chinthaka","doi":"10.1109/ECTICON.2014.6839752","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839752","url":null,"abstract":"In today's modern world 3D modeling is used in numerous practical applications. Surveillance, Traffic Control, Driver Assistance & Biomedical imaging are few to name. Higher accuracy is vital in each application. Thus accuracy enhancing techniques are used in each case. Among many other techniques Extended Kalman Filter (EKF) is best known for its recursive least-mean square algorithm for error elimination and optimum estimation. Yet detecting and tracking of objects in an unknown territory using a mobile platform remains a challenge. The purpose of this paper is to provide a practical method for detecting, tracking and reconstructing of objects in an unknown territory with a higher accuracy using EKF.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127354308","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839802
Sakgasit Ramingwong, L. Ramingwong
Risk management is an essential process in software project management. Effective management of risk significantly helps increase rate of project success as well as reduce potential costs of failures. This paper proposes an innovative card-based game which simulates entire cycle of risk management. During the activity, the participants form an organization called “A Risk Management Incorporation (ARMI)”. They are then given chance to experience, analyze, plan, repeat and evolve their risk management processes. Based on the study result, ARMI helps not only simulate an insightful risk management cycle but also improve the participants' attitude towards this critical project element.
{"title":"ARMI: A risk management incorporation","authors":"Sakgasit Ramingwong, L. Ramingwong","doi":"10.1109/ECTICON.2014.6839802","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839802","url":null,"abstract":"Risk management is an essential process in software project management. Effective management of risk significantly helps increase rate of project success as well as reduce potential costs of failures. This paper proposes an innovative card-based game which simulates entire cycle of risk management. During the activity, the participants form an organization called “A Risk Management Incorporation (ARMI)”. They are then given chance to experience, analyze, plan, repeat and evolve their risk management processes. Based on the study result, ARMI helps not only simulate an insightful risk management cycle but also improve the participants' attitude towards this critical project element.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124843385","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839882
Wibhada Naruephiphat, Ridnarong Prom-Ya, C. Charnsripinyo
This paper presents a design of scalable service platform for sensor network applications, which have to deal with large volume of data. It is challenging to design and develop a scalable system for managing a massive amount of data to be stored, processed, and transferred. In our proposed system, we integrate advantages of several techniques, which are reactor pattern, MVC model and Blueprint CSS framework. In our performance test based on reactor pattern, the simulation results show that 100 percent of successful rate can be achieved at high load. The implementation of web application based on MVC model provides modifiability and extensibility in our service platform. Furthermore, the web application development base on Blueprint CSS framework can support various web browsers. Based on our experiments, the service platform can be practically applied for other new services and applications.
{"title":"A design of scalable service platform for sensor network applications","authors":"Wibhada Naruephiphat, Ridnarong Prom-Ya, C. Charnsripinyo","doi":"10.1109/ECTICON.2014.6839882","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839882","url":null,"abstract":"This paper presents a design of scalable service platform for sensor network applications, which have to deal with large volume of data. It is challenging to design and develop a scalable system for managing a massive amount of data to be stored, processed, and transferred. In our proposed system, we integrate advantages of several techniques, which are reactor pattern, MVC model and Blueprint CSS framework. In our performance test based on reactor pattern, the simulation results show that 100 percent of successful rate can be achieved at high load. The implementation of web application based on MVC model provides modifiability and extensibility in our service platform. Furthermore, the web application development base on Blueprint CSS framework can support various web browsers. Based on our experiments, the service platform can be practically applied for other new services and applications.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124882819","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839834
Chairat Kraichan, S. Pumrin
This paper presents a novel user interface with computer. We propose eye and face detection via Haar-like feature with Bilateral Total Variation based super-resolution to resize the low resolution eye image from web camera. The center of eye-pair detection is mapped to the mouse coordinates in computer screen. Left click and right click are controlled by blinking left eye and right eye, respectively. Ambient illuminations are fluorescence and natural daylight in day time mode and fluorescence as one light source at night time mode. The system performance are evaluated on measuring sensitivities of face and eye detection across (1) distances between web camera and the user, (2) roll and pitch angles of the head pose, and (3) eye-center coordinates for controlling computer functions.
{"title":"Face and eye tracking for controlling computer functions","authors":"Chairat Kraichan, S. Pumrin","doi":"10.1109/ECTICON.2014.6839834","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839834","url":null,"abstract":"This paper presents a novel user interface with computer. We propose eye and face detection via Haar-like feature with Bilateral Total Variation based super-resolution to resize the low resolution eye image from web camera. The center of eye-pair detection is mapped to the mouse coordinates in computer screen. Left click and right click are controlled by blinking left eye and right eye, respectively. Ambient illuminations are fluorescence and natural daylight in day time mode and fluorescence as one light source at night time mode. The system performance are evaluated on measuring sensitivities of face and eye detection across (1) distances between web camera and the user, (2) roll and pitch angles of the head pose, and (3) eye-center coordinates for controlling computer functions.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125864235","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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