Pub Date : 2014-05-14DOI: 10.1109/ECTICON.2014.6839739
Sunyanan Choochotkaew, K. Piromsopa
In this paper, we propose a MANET authentication model for communication between victims in disaster areas. Our model is as secure as the Self-Generated-Certificate Public Key without pairing scheme [1], but does not require a direct connection to a centralized CA. We achieve this by combining two adjusted protocols into two independent authentication modes: main mode and emergency mode. In our scenario, a disaster area is partitioned into two adjacent zones: a damage zone (most infrastructures inside are damaged by a severe disaster), and an infrastructure zone. This partition is based on our observation from many real life disaster situations. A node, called a carrier (rescue node), moves between the two zones in order to relay between them. Our proposed hybrid approach has higher availability and more efficiency than the traditional approaches. In our system, an encrypted message can be used to verify both senders and receivers as well as to preserve confidentiality and integrity of data. The key to the success of our model is the mobility of the rescue nodes. Our model is validated using NS-3 simulator. We present security and efficiency analysis by comparing to the traditional approaches.
{"title":"Development of a trustworthy authentication system in mobile ad-hoc networks for disaster area","authors":"Sunyanan Choochotkaew, K. Piromsopa","doi":"10.1109/ECTICON.2014.6839739","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839739","url":null,"abstract":"In this paper, we propose a MANET authentication model for communication between victims in disaster areas. Our model is as secure as the Self-Generated-Certificate Public Key without pairing scheme [1], but does not require a direct connection to a centralized CA. We achieve this by combining two adjusted protocols into two independent authentication modes: main mode and emergency mode. In our scenario, a disaster area is partitioned into two adjacent zones: a damage zone (most infrastructures inside are damaged by a severe disaster), and an infrastructure zone. This partition is based on our observation from many real life disaster situations. A node, called a carrier (rescue node), moves between the two zones in order to relay between them. Our proposed hybrid approach has higher availability and more efficiency than the traditional approaches. In our system, an encrypted message can be used to verify both senders and receivers as well as to preserve confidentiality and integrity of data. The key to the success of our model is the mobility of the rescue nodes. Our model is validated using NS-3 simulator. We present security and efficiency analysis by comparing to the traditional approaches.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"136 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":"116388987","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.2014.6839733
Thammachat Kongwirat, A. Jangwanitlert
A 3-Phase 3-Level DC-DC Converter is used for high electric applications. In this paper, all power semiconductor switches are operated under Soft-Switching conditions. The outer-switches are operated within ZVS conditions by using charge transfer through flying capacitors, while the innerswitches are operated within ZVZCS conditions by using leakage inductances and blocking capacitors. Also, this paper describes the operation modes under ZVS and ZCS conditions. In addition, the simulation and experimental results are compared. The practical test is at 5.5 kW rated power and efficiency of 93.40%.
{"title":"A novel three-phase three-level ZVZCS DC-DC converter using phase-shift PWM strategy","authors":"Thammachat Kongwirat, A. Jangwanitlert","doi":"10.1109/ECTICON.2014.6839733","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839733","url":null,"abstract":"A 3-Phase 3-Level DC-DC Converter is used for high electric applications. In this paper, all power semiconductor switches are operated under Soft-Switching conditions. The outer-switches are operated within ZVS conditions by using charge transfer through flying capacitors, while the innerswitches are operated within ZVZCS conditions by using leakage inductances and blocking capacitors. Also, this paper describes the operation modes under ZVS and ZCS conditions. In addition, the simulation and experimental results are compared. The practical test is at 5.5 kW rated power and efficiency of 93.40%.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"17 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":"122158496","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.2014.6839819
Wisanu Jitviriya, Eiji Hayashi
Our research has been focused on developing an interaction between humans and robots to enhance an intellectual action of the service robots. From our previous research, we have constructed a model of mechanism of consciousness and behaviors, this software architecture is called Consciousness-Based Architecture (CBA). Furthermore, the robot should select the action and express the emotion by itself, which depends on its surrounding environment. Therefore, this research presents a system which forms and expresses the emotions of the robot. The intrinsic motivation and external situations of robot are used to analyze and classify the behavior and the emotion by a Self-Organizing Map (SOM). We attempt to describe the integration of a behavior map and an emotion map into CBA module. We confirmed the effectiveness of the proposed system by an experiment in an environment using a conscious behavior robot (Conbe-I).
{"title":"Design of emotion generation model and action selection for robots using a Self Organizing Map","authors":"Wisanu Jitviriya, Eiji Hayashi","doi":"10.1109/ECTICON.2014.6839819","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839819","url":null,"abstract":"Our research has been focused on developing an interaction between humans and robots to enhance an intellectual action of the service robots. From our previous research, we have constructed a model of mechanism of consciousness and behaviors, this software architecture is called Consciousness-Based Architecture (CBA). Furthermore, the robot should select the action and express the emotion by itself, which depends on its surrounding environment. Therefore, this research presents a system which forms and expresses the emotions of the robot. The intrinsic motivation and external situations of robot are used to analyze and classify the behavior and the emotion by a Self-Organizing Map (SOM). We attempt to describe the integration of a behavior map and an emotion map into CBA module. We confirmed the effectiveness of the proposed system by an experiment in an environment using a conscious behavior robot (Conbe-I).","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"64 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":"124836765","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.2014.6839861
T. Hoshikawa, K. Yamada, Y. Tatsumi, Y. Zhai
One of the problems involved in the control of the real system is the time-delay of the control system. The time-delay generally makes the transfer function have an infinite number of poles, then it makes to guarantee the stability of time-delay control system and to specify the control characteristics difficult. One of the ways to overcome this problem is to use the modified Smith predictor. The modified Smith predictor is the controller including the model of time-delay plant, and this makes to guarantee the stability of time-delay control system and to specify the control characteristics easily. However, the modified Smith predictor is an irrational controller. That is, the modified Smith predictor also has infinite number of poles. This causes that the controller design becomes very difficult. In addition, the designed controller is generally very high order, then the design cost becomes expensive. From these reasons, it is desirable both to stabilize the time-delay control system and to make the transfer function have a finite number of poles, by using rational controllers. In this paper, we clarify the class of all stabilizable time-delay plants with feedback connection by real rational controllers.
{"title":"The class of all stabilizable time-delay plants with feedback connection by real rational controllers","authors":"T. Hoshikawa, K. Yamada, Y. Tatsumi, Y. Zhai","doi":"10.1109/ECTICON.2014.6839861","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839861","url":null,"abstract":"One of the problems involved in the control of the real system is the time-delay of the control system. The time-delay generally makes the transfer function have an infinite number of poles, then it makes to guarantee the stability of time-delay control system and to specify the control characteristics difficult. One of the ways to overcome this problem is to use the modified Smith predictor. The modified Smith predictor is the controller including the model of time-delay plant, and this makes to guarantee the stability of time-delay control system and to specify the control characteristics easily. However, the modified Smith predictor is an irrational controller. That is, the modified Smith predictor also has infinite number of poles. This causes that the controller design becomes very difficult. In addition, the designed controller is generally very high order, then the design cost becomes expensive. From these reasons, it is desirable both to stabilize the time-delay control system and to make the transfer function have a finite number of poles, by using rational controllers. In this paper, we clarify the class of all stabilizable time-delay plants with feedback connection by real rational controllers.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"10 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":"130140746","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.2014.6839884
Yosita Chareonsiri, W. Thaiwirot, P. Akkaraekthalin
This paper presents the design of tapered slot antenna with squared cosine profile for Ultra-Wideband (UWB) applications. The proposed antenna is composed of a feed line, a microstrip-slotline transition and a radiating slot by using squared profile. By etching a rectangular slot on the bottom edge of tapered slot antenna, the proposed antenna can achieve a bandwidth from 2.96 GHz-12.07 GHz. The performances of the proposed antenna are demonstrated along with the simulated and measured results.
{"title":"Tapered slot antenna with squared cosine profile for ultra-wideband applications","authors":"Yosita Chareonsiri, W. Thaiwirot, P. Akkaraekthalin","doi":"10.1109/ECTICON.2014.6839884","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839884","url":null,"abstract":"This paper presents the design of tapered slot antenna with squared cosine profile for Ultra-Wideband (UWB) applications. The proposed antenna is composed of a feed line, a microstrip-slotline transition and a radiating slot by using squared profile. By etching a rectangular slot on the bottom edge of tapered slot antenna, the proposed antenna can achieve a bandwidth from 2.96 GHz-12.07 GHz. The performances of the proposed antenna are demonstrated along with the simulated and measured results.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"10 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":"128969871","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.2014.6839767
Sorn Sooksatra, T. Kondo
Traffic light is one of the important signs for drivers that help managing the car flow and reducing accident on the road. As of today technology, there exists a traffic light detection system that warns the driver to reduce the accident significantly. In this paper, we are concerned with only the red and yellow traffic light to reduce false positive and time consumption. The fast radial symmetry transform is a fast variation of the circular Hough transform. The CIELab color model is used because it is less dependent on lighting conditions. The precision and the recall of the proposed method are increased from previous work.
{"title":"Red traffic light detection using fast radial symmetry transform","authors":"Sorn Sooksatra, T. Kondo","doi":"10.1109/ECTICON.2014.6839767","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839767","url":null,"abstract":"Traffic light is one of the important signs for drivers that help managing the car flow and reducing accident on the road. As of today technology, there exists a traffic light detection system that warns the driver to reduce the accident significantly. In this paper, we are concerned with only the red and yellow traffic light to reduce false positive and time consumption. The fast radial symmetry transform is a fast variation of the circular Hough transform. The CIELab color model is used because it is less dependent on lighting conditions. The precision and the recall of the proposed method are increased from previous work.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"92 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":"126933263","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.2014.6839796
Nattapong Pantong, W. Benjapolakul
In this paper, we propose the method for allocating spectrum resource efficiently for the service provider to get the highest revenue due to limited spectrum resource. The concept of this proposed method is to find optimal sub-channel for femtocell from optimal ratio of macro-femto network that corresponds to the highest revenue point by using pricing strategy. Simulation results show that our proposed method can improve the total throughput of system over the one of the optimal sub-channel with the fixed sub-channel.
{"title":"Throughput improvement and spectrum allocation in femtocell networks by pricing strategy","authors":"Nattapong Pantong, W. Benjapolakul","doi":"10.1109/ECTICON.2014.6839796","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839796","url":null,"abstract":"In this paper, we propose the method for allocating spectrum resource efficiently for the service provider to get the highest revenue due to limited spectrum resource. The concept of this proposed method is to find optimal sub-channel for femtocell from optimal ratio of macro-femto network that corresponds to the highest revenue point by using pricing strategy. Simulation results show that our proposed method can improve the total throughput of system over the one of the optimal sub-channel with the fixed sub-channel.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"93 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":"122978855","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.2014.6839795
Masato Haga, M. Uchida
Recent airship robots have been made with parts similar to aquatic animal organs in order to combine the excellent swimming abilities that fish demonstrate in water with the low energy consumption that airship robots require when flying at low speeds and altitudes. One such robot is the Balloon Fish Robot (BFR). This paper is concerned with, motion simulation and parameter optimization for the BFR's propulsion efficiency, when propelled by traveling wave. Controlling expression of the BFR is based on the traveling wave equation; the equation of motion is defined through controlling and drag force equations. Comparative experiments of the BFR's forward air speed in simulation and practice were implemented to evaluate the validity of simulation. Parameters of the maximum propulsion efficiency were investigated by measuring experimental air speed, maximum frequency of the tail fin, and traveling wave.
{"title":"Evaluation of Balloon Fish Robot based on traveling wave equation","authors":"Masato Haga, M. Uchida","doi":"10.1109/ECTICON.2014.6839795","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839795","url":null,"abstract":"Recent airship robots have been made with parts similar to aquatic animal organs in order to combine the excellent swimming abilities that fish demonstrate in water with the low energy consumption that airship robots require when flying at low speeds and altitudes. One such robot is the Balloon Fish Robot (BFR). This paper is concerned with, motion simulation and parameter optimization for the BFR's propulsion efficiency, when propelled by traveling wave. Controlling expression of the BFR is based on the traveling wave equation; the equation of motion is defined through controlling and drag force equations. Comparative experiments of the BFR's forward air speed in simulation and practice were implemented to evaluate the validity of simulation. Parameters of the maximum propulsion efficiency were investigated by measuring experimental air speed, maximum frequency of the tail fin, and traveling wave.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"50 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":"123115580","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.2014.6839818
C. Sawigun, P. Pawarangkoon
A compact 1st-order analog allpass filter operating from a 1.5 V DC supply is presented. The proposed circuit is formed by a handful of subthreshold pMOS transistors, two capacitors and one current source. Verified by circuit simulations using RF Spectre and the AMS 0.35-micron CMOS parameters, the proposed filter consumes 300 nW quiescent power and contributes output noise voltage of 0.03 mVrms while providing a 90-degree phase-shift frequency of 22 kHz. The differential input signal voltage swing and dynamic range are 0.1 Vp and 67.7 dB, respectively.
{"title":"A 1.5-V, 300-nW, continuous-time allpass filter With 67 dB dynamic range","authors":"C. Sawigun, P. Pawarangkoon","doi":"10.1109/ECTICON.2014.6839818","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839818","url":null,"abstract":"A compact 1st-order analog allpass filter operating from a 1.5 V DC supply is presented. The proposed circuit is formed by a handful of subthreshold pMOS transistors, two capacitors and one current source. Verified by circuit simulations using RF Spectre and the AMS 0.35-micron CMOS parameters, the proposed filter consumes 300 nW quiescent power and contributes output noise voltage of 0.03 mVrms while providing a 90-degree phase-shift frequency of 22 kHz. The differential input signal voltage swing and dynamic range are 0.1 Vp and 67.7 dB, respectively.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"16 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":"114223303","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.2014.6839803
Rujirawat Thanawarithorn, P. Aree
Hyperbolic Takács model has been accepted and widely used for hysteresis loop representation of magnetic materials. In this paper, the original Takács model is extended to include Gaussian function for accuracy improvement of soft magnetic material. The modified hysteresis model is then incorporated into single-phase transformer model in the Matlab/Simulink environment. An accuracy of the modified Takács model is verified by comparing input current responses obtained from measurement and computation. The results show good agreements of the measured and simulated current waveforms of 1kVA 220/110V transformer.
{"title":"An extension of Takács model for hysteresis loop representation of single-phase transformer","authors":"Rujirawat Thanawarithorn, P. Aree","doi":"10.1109/ECTICON.2014.6839803","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839803","url":null,"abstract":"Hyperbolic Takács model has been accepted and widely used for hysteresis loop representation of magnetic materials. In this paper, the original Takács model is extended to include Gaussian function for accuracy improvement of soft magnetic material. The modified hysteresis model is then incorporated into single-phase transformer model in the Matlab/Simulink environment. An accuracy of the modified Takács model is verified by comparing input current responses obtained from measurement and computation. The results show good agreements of the measured and simulated current waveforms of 1kVA 220/110V transformer.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"61 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":"116596709","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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