Pub Date : 2017-07-01DOI: 10.1109/QIR.2017.8168492
Indah SurvyanaWahyudi, A. Affandi, M. Hariadi
By the growth of digital data which leads to more complex demands from user to find the information or items. Search engines solve most of the problems but have the drawback, it depends on the query/term that the user enter. The problem appears when the user forget or does not know the query that associated with the items. The Recommendation comes as a solution to provide personal information by studying the interaction of a user, user community, and items that have been recorded previously. Collaborative filtering as a method to provide personalized recommendations based on other users who have similar tastes. However, the results of collaborative filtering tend random, sometimes users need an item with similar genre/subjects. This paper discusses a model of a recommendation engine for new users with a method of collaborative filtering based on genre similarly with the aim of giving the smallest error with high precision. First filter we use Alternating Least Square-Weight Regularization (ALS-WR) is selected as algorithms for collaborative filtering. Second filter we use Cosine Similarity is selected as an algorithm for genre similarity. We use datasets from movielens.org. The RMSE on the first recommendation generated is 0.89 for 100K ratings, 0.86 for the 1M ratings, and 0.81 for the 10M rating. By iterative and training on larger data, it will make a better model, so RMSE can be smaller. They are concluded that ALS-WR able to deliver adaptive, with regulatory parameters that can be controlled and adjusted. The more data but the error on the wane, that is means this algorithm is suitable for growing data or big data. The item that has been sorted with the ALS-WR algorithm, letter approximated with cosine similarity, and with only 10 items movie displays with the highest degree of similarity, that be able to generate high precision.
{"title":"Recommender engine using cosine similarity based on alternating least square-weight regularization","authors":"Indah SurvyanaWahyudi, A. Affandi, M. Hariadi","doi":"10.1109/QIR.2017.8168492","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168492","url":null,"abstract":"By the growth of digital data which leads to more complex demands from user to find the information or items. Search engines solve most of the problems but have the drawback, it depends on the query/term that the user enter. The problem appears when the user forget or does not know the query that associated with the items. The Recommendation comes as a solution to provide personal information by studying the interaction of a user, user community, and items that have been recorded previously. Collaborative filtering as a method to provide personalized recommendations based on other users who have similar tastes. However, the results of collaborative filtering tend random, sometimes users need an item with similar genre/subjects. This paper discusses a model of a recommendation engine for new users with a method of collaborative filtering based on genre similarly with the aim of giving the smallest error with high precision. First filter we use Alternating Least Square-Weight Regularization (ALS-WR) is selected as algorithms for collaborative filtering. Second filter we use Cosine Similarity is selected as an algorithm for genre similarity. We use datasets from movielens.org. The RMSE on the first recommendation generated is 0.89 for 100K ratings, 0.86 for the 1M ratings, and 0.81 for the 10M rating. By iterative and training on larger data, it will make a better model, so RMSE can be smaller. They are concluded that ALS-WR able to deliver adaptive, with regulatory parameters that can be controlled and adjusted. The more data but the error on the wane, that is means this algorithm is suitable for growing data or big data. The item that has been sorted with the ALS-WR algorithm, letter approximated with cosine similarity, and with only 10 items movie displays with the highest degree of similarity, that be able to generate high precision.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126216197","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168457
F. Kurniawan, J. Sumantyo, Mujtahid, A. Munir
In this paper, an effect of truncation shape of left-handed circularly polarized (LHCP) X-band antenna against its axial ratio is investigated. The antenna which is designed to have the center frequency of 8.2GHz and the axial ratio bandwidth of 400MHz is intended to be implemented for satellite communication. It is deployed on an NPC-H220A dielectric substrate with the dielectric constant of 2.17 and the thickness of 1.6mm. The structure of antenna is constructed of two layer dielectric substrates in which the top side of first layer is for radiation element, then the top side of bottom layer is for feeding line and the bottom side of bottom layer is for groundplane. The truncation is set in the edge of radiation element at 45° from z-axis and 45° from x-axis. The investigation is performed by varying the shape of truncation on radiation element. Three different shapes of truncation, i.e. triangle-shaped, square-shaped, and ellipse-shaped, are applied for investigating the antenna parameter focused on its axial ratio. From the result, it shows that the antenna with ellipse-shaped truncation has the widest axial ratio bandwidth among other shapes ranges from the frequency of 7.89GHz to 8.4GHz.
{"title":"Effect of truncation shape against axial ratio of left-handed circularly polarized X-band antenna","authors":"F. Kurniawan, J. Sumantyo, Mujtahid, A. Munir","doi":"10.1109/QIR.2017.8168457","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168457","url":null,"abstract":"In this paper, an effect of truncation shape of left-handed circularly polarized (LHCP) X-band antenna against its axial ratio is investigated. The antenna which is designed to have the center frequency of 8.2GHz and the axial ratio bandwidth of 400MHz is intended to be implemented for satellite communication. It is deployed on an NPC-H220A dielectric substrate with the dielectric constant of 2.17 and the thickness of 1.6mm. The structure of antenna is constructed of two layer dielectric substrates in which the top side of first layer is for radiation element, then the top side of bottom layer is for feeding line and the bottom side of bottom layer is for groundplane. The truncation is set in the edge of radiation element at 45° from z-axis and 45° from x-axis. The investigation is performed by varying the shape of truncation on radiation element. Three different shapes of truncation, i.e. triangle-shaped, square-shaped, and ellipse-shaped, are applied for investigating the antenna parameter focused on its axial ratio. From the result, it shows that the antenna with ellipse-shaped truncation has the widest axial ratio bandwidth among other shapes ranges from the frequency of 7.89GHz to 8.4GHz.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126311434","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168519
Ishak Kasim, S. Abduh, Nur Fitryah
The demand of electricity transmission toward regions for society, industrial and other needs are increasing hence, making electricity transmission and distribution increased as well. The increase in electricity transmission and distribution requires addition of Substation construction. Substation constructions are crucial for economic growth in Indonesia. This research aims to design two models of grounding system, to determine permissible touch voltages and permissible step voltages, and to simulate both designs using CYMGrd Software, whereby both designs were compared to obtain optimal grounding system at 275 KV Betung Substation. With touch voltages and step voltages values of 1387.97 V and 364.6 KV in first model, and touch voltages and step voltages of 1247.2 V and 112.39 V in second model, both model did not exceed permissible touch voltages of 1409.58 V and permissible step voltages of 5050.1 V. Final result of this research showed that second design model was more optimal compared with the first design model.
{"title":"Grounding system design optimization on 275 KV betung substation based on IEEE standard 80-2000","authors":"Ishak Kasim, S. Abduh, Nur Fitryah","doi":"10.1109/QIR.2017.8168519","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168519","url":null,"abstract":"The demand of electricity transmission toward regions for society, industrial and other needs are increasing hence, making electricity transmission and distribution increased as well. The increase in electricity transmission and distribution requires addition of Substation construction. Substation constructions are crucial for economic growth in Indonesia. This research aims to design two models of grounding system, to determine permissible touch voltages and permissible step voltages, and to simulate both designs using CYMGrd Software, whereby both designs were compared to obtain optimal grounding system at 275 KV Betung Substation. With touch voltages and step voltages values of 1387.97 V and 364.6 KV in first model, and touch voltages and step voltages of 1247.2 V and 112.39 V in second model, both model did not exceed permissible touch voltages of 1409.58 V and permissible step voltages of 5050.1 V. Final result of this research showed that second design model was more optimal compared with the first design model.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129116643","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168445
Intan Ari Budiastuti, S. M. S. Nugroho, M. Hariadi
Inflation rate could describe economic growth and it is usually used by policy-maker to determine a monetary policy. The Consumer Price Index (CPI) is one of indicator used to measure inflation rate. Until now, the inflation calculations and CPI prediction are conducted on monthly even though it is now likely to predict them on daily basis by utilizing online commodity price movement. Daily predictions could become a tool to analyze the real value of the market and will allow policy-makers to make better policy. This is a preliminary research to develop daily CPI prediction model by using Big Data. This paper discussed daily prediction model by using real-time data (daily commodity price and exchange rate) and SVR method. Build a model focused on accuracy and execution time. Grid Search and Random Search method were applied to select the best parameter for SVR model. In addition, we compared SVR method with linear regression and Kernel Ridge Regression method. The results show that the prediction model using SVR-kernel RBF has MSE value, 0.3454, less than other methods. Execute time for process data show that Kernel Ridge method has training time 0.0698s, little faster than SVR method 0.134s.
{"title":"Predicting daily consumer price index using support vector regression method","authors":"Intan Ari Budiastuti, S. M. S. Nugroho, M. Hariadi","doi":"10.1109/QIR.2017.8168445","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168445","url":null,"abstract":"Inflation rate could describe economic growth and it is usually used by policy-maker to determine a monetary policy. The Consumer Price Index (CPI) is one of indicator used to measure inflation rate. Until now, the inflation calculations and CPI prediction are conducted on monthly even though it is now likely to predict them on daily basis by utilizing online commodity price movement. Daily predictions could become a tool to analyze the real value of the market and will allow policy-makers to make better policy. This is a preliminary research to develop daily CPI prediction model by using Big Data. This paper discussed daily prediction model by using real-time data (daily commodity price and exchange rate) and SVR method. Build a model focused on accuracy and execution time. Grid Search and Random Search method were applied to select the best parameter for SVR model. In addition, we compared SVR method with linear regression and Kernel Ridge Regression method. The results show that the prediction model using SVR-kernel RBF has MSE value, 0.3454, less than other methods. Execute time for process data show that Kernel Ridge method has training time 0.0698s, little faster than SVR method 0.134s.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128904132","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168455
T. Hasan, M. Tabe, D. Moraru, A. Afiff, A. Udhiarto, H. Sudibyo, D. Hartanto, A. Samanta, M. Muruganathan, H. Mizuta
Single-electron tunneling (SET) transistors have been studied for the past several decades because they are promising for low-power consumption and fundamental-level control of charge. The quantum dots (QDs) that are the main part of an SET transistor have been demonstrated in a variety of materials, but recently dopant-atoms in silicon have also been shown to work as QDs. However, a single conventional dopant-atom has usually a shallow ground state energy level below the conduction band edge (∼45 meV). This means that the tunnel barrier is relatively low and thermally-activated current can flow over the barrier. Therefore, the operation of dopant-atom SET transistors remains limited to low temperatures. In this work, we statistically analyze the key factors for raising the SET operation temperature up to room temperature (>300 K).
{"title":"A Statistical Study on the formation of a-few-dopant quantum dots in highly-doped Si nanowire transistors","authors":"T. Hasan, M. Tabe, D. Moraru, A. Afiff, A. Udhiarto, H. Sudibyo, D. Hartanto, A. Samanta, M. Muruganathan, H. Mizuta","doi":"10.1109/QIR.2017.8168455","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168455","url":null,"abstract":"Single-electron tunneling (SET) transistors have been studied for the past several decades because they are promising for low-power consumption and fundamental-level control of charge. The quantum dots (QDs) that are the main part of an SET transistor have been demonstrated in a variety of materials, but recently dopant-atoms in silicon have also been shown to work as QDs. However, a single conventional dopant-atom has usually a shallow ground state energy level below the conduction band edge (∼45 meV). This means that the tunnel barrier is relatively low and thermally-activated current can flow over the barrier. Therefore, the operation of dopant-atom SET transistors remains limited to low temperatures. In this work, we statistically analyze the key factors for raising the SET operation temperature up to room temperature (>300 K).","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127999314","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168480
J. Muliadi, Rizki Langit, B. Kusumoputro
This article proposes a practical new method to obtain the moment of inertia of UAV, named ARES. The ARES method simultaneously determined all the elements of UAV's Tensor of Inertia, i.e. the moments and the products of inertia through algebraic solving. The ARES method directly uses the UAV Flight Data to accommodate accuracy issues of modeling such as vehicle's geometrical imperfection; manufacturing defect, any non-symmetrical due component placement, etc. This proposed method was applicable for various purposes of UAV modeling e.g. flight control design, flight dynamics analysis, etc. Conventionally, UAV moments of inertia were estimated by tabulating, CAD-based, or pendulum method. Since these existing methods were constrained by the accuracy and practical issues, we develop the ARES method which using the UAV's flight data to resolve both issues. After undergone appropriate mathematical strategies, the ARES produce a linear construction for algebraic solving technique. The implementation the proposed method in the quadrotor flight data showing that ARES are successfully measured the asymmetrical terms which important for nonlinear controlling, that previously neglected by the conventional methods. Thus, the ARES estimates the UAV Tensor of Inertia in holistic, sophisticated and practical fashion.
{"title":"Estimating the UAV moments of inertia directly from its flight data","authors":"J. Muliadi, Rizki Langit, B. Kusumoputro","doi":"10.1109/QIR.2017.8168480","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168480","url":null,"abstract":"This article proposes a practical new method to obtain the moment of inertia of UAV, named ARES. The ARES method simultaneously determined all the elements of UAV's Tensor of Inertia, i.e. the moments and the products of inertia through algebraic solving. The ARES method directly uses the UAV Flight Data to accommodate accuracy issues of modeling such as vehicle's geometrical imperfection; manufacturing defect, any non-symmetrical due component placement, etc. This proposed method was applicable for various purposes of UAV modeling e.g. flight control design, flight dynamics analysis, etc. Conventionally, UAV moments of inertia were estimated by tabulating, CAD-based, or pendulum method. Since these existing methods were constrained by the accuracy and practical issues, we develop the ARES method which using the UAV's flight data to resolve both issues. After undergone appropriate mathematical strategies, the ARES produce a linear construction for algebraic solving technique. The implementation the proposed method in the quadrotor flight data showing that ARES are successfully measured the asymmetrical terms which important for nonlinear controlling, that previously neglected by the conventional methods. Thus, the ARES estimates the UAV Tensor of Inertia in holistic, sophisticated and practical fashion.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130282955","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168507
Yusuf Lestanto, Aries Subiantoro, F. Yusivar
Vehicle dynamics have very complex characteristic and nonlinear behaviour. Vehicle dynamics are decomposed of many internal and external components which influence vehicle stability. External components come from environment such as wind forces, surface coarse of road, lane bend or sudden maneuver, which will change the value of vehicle stability parameters, i.e. yaw rate and sideslip. Both are influenced by the longitudinal velocity change and are difficult to be measured by installed sensors in vehicle. For driving convenience and high safety performance, the vehicle stability parameters must be controlled. Researches and experiments directly on the vehicle bring quite expensive cost and huge time consuming. Therefore, before doing experiments to the real vehicle, simulation is taken. Simulation needs model of vehicle dynamics that are approaching real vehicle dynamics. In this paper, instead of using simple vehicle model, the replication of the vehicle dynamics has been taken from CarSim multi-degree of freedom vehicle model. CarSim's vehicle model C Class Hatchback Sprungmass 2012 is used in this simulation. All vehicle parameters are already provided by CarSim. Vehicle model run along defined part of vehicle track of Universitas Indonesia. At certain bend lane, the obtained data consists of steering angle, longitudinal forces to all four wheels, yaw rate and side slip angle. Two-stage Least Square method has been applied to those data in order to estimate vehicle dynamics. The estimated model was validated upon another data. The result shows that the estimated vehicle model could represent in approaching real vehicle dynamics. The estimated model has perfect controllable and observable characteristic. The model is stable and its eigenvalues is inside unit circle.
{"title":"Two-stage least square method for model identification of vehicle motion","authors":"Yusuf Lestanto, Aries Subiantoro, F. Yusivar","doi":"10.1109/QIR.2017.8168507","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168507","url":null,"abstract":"Vehicle dynamics have very complex characteristic and nonlinear behaviour. Vehicle dynamics are decomposed of many internal and external components which influence vehicle stability. External components come from environment such as wind forces, surface coarse of road, lane bend or sudden maneuver, which will change the value of vehicle stability parameters, i.e. yaw rate and sideslip. Both are influenced by the longitudinal velocity change and are difficult to be measured by installed sensors in vehicle. For driving convenience and high safety performance, the vehicle stability parameters must be controlled. Researches and experiments directly on the vehicle bring quite expensive cost and huge time consuming. Therefore, before doing experiments to the real vehicle, simulation is taken. Simulation needs model of vehicle dynamics that are approaching real vehicle dynamics. In this paper, instead of using simple vehicle model, the replication of the vehicle dynamics has been taken from CarSim multi-degree of freedom vehicle model. CarSim's vehicle model C Class Hatchback Sprungmass 2012 is used in this simulation. All vehicle parameters are already provided by CarSim. Vehicle model run along defined part of vehicle track of Universitas Indonesia. At certain bend lane, the obtained data consists of steering angle, longitudinal forces to all four wheels, yaw rate and side slip angle. Two-stage Least Square method has been applied to those data in order to estimate vehicle dynamics. The estimated model was validated upon another data. The result shows that the estimated vehicle model could represent in approaching real vehicle dynamics. The estimated model has perfect controllable and observable characteristic. The model is stable and its eigenvalues is inside unit circle.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133359020","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168526
Iswan, I. Garniwa
This paper proposes an approach for development of electrical system. The proposed approach is combination of principal component analysis (PCA) and cluster analysis. This research based on relevant data of total population, gross domestic regional product (GDRP), GDRP of industry, GDRP of business, electric power each customer and energy used for each sector. This development profile is set up to show the condition of electrical system of each region, that will be used to support policy development electrical system of spatial development in the future. This paper considers 24 regions in South Sulawesi province as development center points and use principal component analysis (PCA) to assess the regional profile for development. Cluster analysis is used to group these region into clusters according to the new variable produced PCA. The general planning of electrical system of South Sulawesi province can provide support for policy making of electrical system development. The future will include add on research several variables.
{"title":"Principal component analysis and cluster analysis for development of electrical system","authors":"Iswan, I. Garniwa","doi":"10.1109/QIR.2017.8168526","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168526","url":null,"abstract":"This paper proposes an approach for development of electrical system. The proposed approach is combination of principal component analysis (PCA) and cluster analysis. This research based on relevant data of total population, gross domestic regional product (GDRP), GDRP of industry, GDRP of business, electric power each customer and energy used for each sector. This development profile is set up to show the condition of electrical system of each region, that will be used to support policy development electrical system of spatial development in the future. This paper considers 24 regions in South Sulawesi province as development center points and use principal component analysis (PCA) to assess the regional profile for development. Cluster analysis is used to group these region into clusters according to the new variable produced PCA. The general planning of electrical system of South Sulawesi province can provide support for policy making of electrical system development. The future will include add on research several variables.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131713141","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168456
A. Munir, Habibur Muhaimin, M. S. Arifianto, Chairunnisa, M. R. Effendi, A. B. Suksmono
This paper deals with the design and implementation of wideband bandpass filter (BPF) composed of planar inverted-F shaped. The filter is intended to have working bandwidth more than 1GHz at S-band frequency for radar application. The choice of inverted-F shape is due to the ability to provide flexibility characteristics in impedance matching and working bandwidth. Prior hardware realization and measurement, the performance of filter is numerically investigated to obtain the optimum design. The prototype is then realized by constructing 2 identical elements of planar inverted-F shaped which every single element is etched on a 1.6mm thick flame retardant (FR) glass-reinforced epoxy dielectric substrate with the dimension of 24mm in length and 33mm in width. From the measurement, the realized filter shows a good agreement in frequency responses comparable to the simulated result with minimum insertion loss of 1.17dB within the passband area and 10dB less of return loss in the frequency range from 1.92GHz to 3.21GHz.
{"title":"Wideband BPF composed of planar inverted-F shaped for S-band frequency application","authors":"A. Munir, Habibur Muhaimin, M. S. Arifianto, Chairunnisa, M. R. Effendi, A. B. Suksmono","doi":"10.1109/QIR.2017.8168456","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168456","url":null,"abstract":"This paper deals with the design and implementation of wideband bandpass filter (BPF) composed of planar inverted-F shaped. The filter is intended to have working bandwidth more than 1GHz at S-band frequency for radar application. The choice of inverted-F shape is due to the ability to provide flexibility characteristics in impedance matching and working bandwidth. Prior hardware realization and measurement, the performance of filter is numerically investigated to obtain the optimum design. The prototype is then realized by constructing 2 identical elements of planar inverted-F shaped which every single element is etched on a 1.6mm thick flame retardant (FR) glass-reinforced epoxy dielectric substrate with the dimension of 24mm in length and 33mm in width. From the measurement, the realized filter shows a good agreement in frequency responses comparable to the simulated result with minimum insertion loss of 1.17dB within the passband area and 10dB less of return loss in the frequency range from 1.92GHz to 3.21GHz.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133003007","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168487
Dea Saka Kurnia Putra, M. Sadikin, Susila Windarta
Nowadays, mobile banking becomes a popular tool which consumers can conduct financial transactions such as shopping, monitoring accounts balance, transferring funds and other payments. Consumers dependency on mobile needs, make people take a little bit more interest in mobile banking. The use of the one-time password which is sent to the user mobile phone by short message service (SMS) is a vulnerability which we want to solve with proposing a new scheme called S-Mbank. We replace the authentication using the one-time password with the contactless smart card to prevent attackers to use the unencrypted message which is sent to the user's mobile phone. Moreover, it deals vulnerability of spoofer to send an SMS pretending as a bank's server. The contactless smart card is proposed because of its flexibility and security which easier to bring in our wallet than the common passcode generators. The replacement of SMS-based authentication with contactless smart card removes the vulnerability of unauthorized users to act as a legitimate user to exploit the mobile banking user's account. Besides that, we use public-private key pair and PIN to provide two factors authentication and mutual authentication. We use signcryption scheme to provide the efficiency of the computation. Pair based text authentication is also proposed for the login process as a solution to shoulder-surfing attack. We use Scyther tool to analyze the security of authentication protocol in S-Mbank scheme. From the proposed scheme, we are able to provide more security protection for mobile banking service.
{"title":"S-Mbank: Secure mobile banking authentication scheme using signcryption, pair based text authentication, and contactless smart card","authors":"Dea Saka Kurnia Putra, M. Sadikin, Susila Windarta","doi":"10.1109/QIR.2017.8168487","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168487","url":null,"abstract":"Nowadays, mobile banking becomes a popular tool which consumers can conduct financial transactions such as shopping, monitoring accounts balance, transferring funds and other payments. Consumers dependency on mobile needs, make people take a little bit more interest in mobile banking. The use of the one-time password which is sent to the user mobile phone by short message service (SMS) is a vulnerability which we want to solve with proposing a new scheme called S-Mbank. We replace the authentication using the one-time password with the contactless smart card to prevent attackers to use the unencrypted message which is sent to the user's mobile phone. Moreover, it deals vulnerability of spoofer to send an SMS pretending as a bank's server. The contactless smart card is proposed because of its flexibility and security which easier to bring in our wallet than the common passcode generators. The replacement of SMS-based authentication with contactless smart card removes the vulnerability of unauthorized users to act as a legitimate user to exploit the mobile banking user's account. Besides that, we use public-private key pair and PIN to provide two factors authentication and mutual authentication. We use signcryption scheme to provide the efficiency of the computation. Pair based text authentication is also proposed for the login process as a solution to shoulder-surfing attack. We use Scyther tool to analyze the security of authentication protocol in S-Mbank scheme. From the proposed scheme, we are able to provide more security protection for mobile banking service.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128740317","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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