Pub Date : 2013-03-23DOI: 10.1109/ICIST.2013.6747800
Xian Zhang, Z. Yun
In a cognitive radio network, cooperative spectrum sensing can improve the accuracy of spectrum sensing and alleviate the hidden terminal problem. Cooperative spectrum sensing frame has three phases: sensing phase, cooperation phase and transmission phase. In this paper, we investigate the problem of designing the power and number of cooperative node (CN) in the cooperation phase to maximize the average throughput for secondary user (SU), under the constraint that the total cooperation and transmission power is fixed. Then, we investigate the optimal CN power or number when CN power, which yield to the maximum average throughput for SU.
{"title":"Optimal power and number of cooperation node in cooperative spectrum sensing","authors":"Xian Zhang, Z. Yun","doi":"10.1109/ICIST.2013.6747800","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747800","url":null,"abstract":"In a cognitive radio network, cooperative spectrum sensing can improve the accuracy of spectrum sensing and alleviate the hidden terminal problem. Cooperative spectrum sensing frame has three phases: sensing phase, cooperation phase and transmission phase. In this paper, we investigate the problem of designing the power and number of cooperative node (CN) in the cooperation phase to maximize the average throughput for secondary user (SU), under the constraint that the total cooperation and transmission power is fixed. Then, we investigate the optimal CN power or number when CN power, which yield to the maximum average throughput for SU.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128045306","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747592
Biyuan Zhong, Yanni Hu
With the higher living standard, people have more and more requirements for smart home system. Accordingly, it is necessary to improve the intelligence of the system. The study firstly introduces the current situation of the smart home market, and analyzes the functions of the smart home system. Then, after discussing the advantages of IDSS (Intelligent Decision Support System), the study proposes an IDSS-based smart home system, and elaborates its operation processes. In the end, attempting to give the direction of its optimization, the study draws a future picture of the smart home system, such as standardization and combining with cloud technology.
随着生活水平的提高，人们对智能家居系统的要求也越来越高。因此，有必要提高系统的智能化。本研究首先介绍了智能家居市场的现状，分析了智能家居系统的功能。然后，在讨论了IDSS (Intelligent Decision Support System，智能决策支持系统)的优势后，提出了一种基于IDSS的智能家居系统，并详细阐述了其运行流程。最后，试图给出其优化的方向，描绘出智能家居系统的未来图景，如标准化和与云技术的结合。
{"title":"Framework and development trend of smart home system based on IDSS","authors":"Biyuan Zhong, Yanni Hu","doi":"10.1109/ICIST.2013.6747592","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747592","url":null,"abstract":"With the higher living standard, people have more and more requirements for smart home system. Accordingly, it is necessary to improve the intelligence of the system. The study firstly introduces the current situation of the smart home market, and analyzes the functions of the smart home system. Then, after discussing the advantages of IDSS (Intelligent Decision Support System), the study proposes an IDSS-based smart home system, and elaborates its operation processes. In the end, attempting to give the direction of its optimization, the study draws a future picture of the smart home system, such as standardization and combining with cloud technology.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133610379","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747500
Jiwen Dong, Lei Zhao, Liang Zhang
In this paper, a fusion of multiple features method based on integrated neural network was proposed. Firstly, KPCA algorithm was used to extract the overall recognition features. Then, the KICA algorithm was used to extract the local features. Finally, the BP and PNN neural network were used to recognize the result of the both algorithms. The method solved the interference caused by the external factors and got high correct rate of classification.
{"title":"Face recognition based on neural network ensemble and feature fusion","authors":"Jiwen Dong, Lei Zhao, Liang Zhang","doi":"10.1109/ICIST.2013.6747500","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747500","url":null,"abstract":"In this paper, a fusion of multiple features method based on integrated neural network was proposed. Firstly, KPCA algorithm was used to extract the overall recognition features. Then, the KICA algorithm was used to extract the local features. Finally, the BP and PNN neural network were used to recognize the result of the both algorithms. The method solved the interference caused by the external factors and got high correct rate of classification.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"178 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133648318","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747617
Lei Qiu, Yongqing Zheng, Yuliang Shi, Chengliang Sang
Microsoft's ET (extension table) approach makes the data model arbitrarily extensible while retaining the cost benefits of using a shared database. But it adds complexity for database querying and updating. We improve it and propose CET (Clustering Extension Table). There are several tables in CET, including BT (Basic Table), CT (Clustering Table), CMT (Metadata Table for CT), ET (Extension Table) and EMT (Metadata Table for ET). The similarity of tenants is adopted to cluster them into different groups. In the group, some data in the basic table and extension table is transformed and consolidated together into the CT (Clustering Table). In one group, CT extracts the common similarity of the tenants in the group to avoid the complexity of using ET. Then SER (Schema Efficiency Ratio) and DER (Data Efficiency Ratio) are described to control tenants' adscription into their groups. Experiments are also conducted to show the improvement of ET.
{"title":"CET: Clustering Extension Table research in multi-tenant database for SaaS applications","authors":"Lei Qiu, Yongqing Zheng, Yuliang Shi, Chengliang Sang","doi":"10.1109/ICIST.2013.6747617","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747617","url":null,"abstract":"Microsoft's ET (extension table) approach makes the data model arbitrarily extensible while retaining the cost benefits of using a shared database. But it adds complexity for database querying and updating. We improve it and propose CET (Clustering Extension Table). There are several tables in CET, including BT (Basic Table), CT (Clustering Table), CMT (Metadata Table for CT), ET (Extension Table) and EMT (Metadata Table for ET). The similarity of tenants is adopted to cluster them into different groups. In the group, some data in the basic table and extension table is transformed and consolidated together into the CT (Clustering Table). In one group, CT extracts the common similarity of the tenants in the group to avoid the complexity of using ET. Then SER (Schema Efficiency Ratio) and DER (Data Efficiency Ratio) are described to control tenants' adscription into their groups. Experiments are also conducted to show the improvement of ET.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128993","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747506
Zhengxin Zhou, R. Du, Xiuju Zhang
In this article, we discuss the quasi-reflecting function of nonlinear vibration equations. We give the sufficient conditions for these equations to have periodic solutions.
本文讨论了非线性振动方程的拟反射函数。我们给出了这些方程有周期解的充分条件。
{"title":"Quasi-reflective function and periodic solutions of nonlinear vibration equations","authors":"Zhengxin Zhou, R. Du, Xiuju Zhang","doi":"10.1109/ICIST.2013.6747506","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747506","url":null,"abstract":"In this article, we discuss the quasi-reflecting function of nonlinear vibration equations. We give the sufficient conditions for these equations to have periodic solutions.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134183468","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747850
Y. Qu, Jian Zhang
A method for direction finding in the presence of mutual coupling is proposed. The method uses the singular value decomposition (SVD) to calculate coupling coefficients from the initial estimates of the direction-of-arrival (DOA). Exploiting these calculated coupling coefficients, the DOA can be estimated precisely by the multiple signal classification (MUSIC) algorithm. Based on this, Blind calibration is realized by several iterations between coupling coefficients and DOA. To deal with the local optimum problem occurring in these iterations, two improved methods for single and multiple sources respectively are presented. Simulation results demonstrate the effectiveness of the proposed methods.
{"title":"SVD-based method for DOA estimation in the presence of mutual coupling","authors":"Y. Qu, Jian Zhang","doi":"10.1109/ICIST.2013.6747850","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747850","url":null,"abstract":"A method for direction finding in the presence of mutual coupling is proposed. The method uses the singular value decomposition (SVD) to calculate coupling coefficients from the initial estimates of the direction-of-arrival (DOA). Exploiting these calculated coupling coefficients, the DOA can be estimated precisely by the multiple signal classification (MUSIC) algorithm. Based on this, Blind calibration is realized by several iterations between coupling coefficients and DOA. To deal with the local optimum problem occurring in these iterations, two improved methods for single and multiple sources respectively are presented. Simulation results demonstrate the effectiveness of the proposed methods.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134144777","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747550
Dingxuan Zhao, Zhiwen Zhang, M. Li, Tianyu Li, Chengcheng Wang
Through the analysis of a five-ton loader working condition characteristics, this paper proposed a parallel hybrid loader structure, studied its parameter matching and put forward a fuzzy logic control strategy for energy saving. The input variables of fuzzy logic controller were system demand torque obtained by online estimation and state of charge of super capacitor. After fuzzy control optimization algorithm, the engine would work smoothly in the high efficiency area and super capacitor would keep balance between charging and discharging. The simulation results showed that the control strategy improved the engine fuel economy and energy saving effect which could save fuel by 7.72% compared with the traditional loader.
{"title":"Research on control strategy for parallel hybrid loader","authors":"Dingxuan Zhao, Zhiwen Zhang, M. Li, Tianyu Li, Chengcheng Wang","doi":"10.1109/ICIST.2013.6747550","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747550","url":null,"abstract":"Through the analysis of a five-ton loader working condition characteristics, this paper proposed a parallel hybrid loader structure, studied its parameter matching and put forward a fuzzy logic control strategy for energy saving. The input variables of fuzzy logic controller were system demand torque obtained by online estimation and state of charge of super capacitor. After fuzzy control optimization algorithm, the engine would work smoothly in the high efficiency area and super capacitor would keep balance between charging and discharging. The simulation results showed that the control strategy improved the engine fuel economy and energy saving effect which could save fuel by 7.72% compared with the traditional loader.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115595572","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747821
Lanzi Zhang, B. Lu, Zhimin Zhou, Xin Sun
In through-the-wall imaging, the clutter, because of its great energy, has great effect on the detection of the targets. For the purpose of clutter suppression, factor analysis method has been studied and applied to TWI data. Besides, a new evaluation criterion, image contrast, for demonstrating the suppression performance is introduced. Compared to the SCR, the clutter suppression technique based on the FA and image contrast can efficiently suppress the clutter without a priori knowledge about targets. Simulation demonstrates the efficiency of the method.
{"title":"The clutter suppression based on FA and image contrast in TWI application","authors":"Lanzi Zhang, B. Lu, Zhimin Zhou, Xin Sun","doi":"10.1109/ICIST.2013.6747821","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747821","url":null,"abstract":"In through-the-wall imaging, the clutter, because of its great energy, has great effect on the detection of the targets. For the purpose of clutter suppression, factor analysis method has been studied and applied to TWI data. Besides, a new evaluation criterion, image contrast, for demonstrating the suppression performance is introduced. Compared to the SCR, the clutter suppression technique based on the FA and image contrast can efficiently suppress the clutter without a priori knowledge about targets. Simulation demonstrates the efficiency of the method.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114280896","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747694
Yang Xu
For an intelligent transportation system (ITS), traffic incident detection is one of the most important issues. In this paper, we propose a novel traffic incident detection method based on trajectory quantification and Hidden Markov Model (HMM) classifier. First, object detection algorithm that combines geodesic active contour model based on level set theory and background subtraction was proposed and accurate contour of moving object is got. Sencondly, the kalman filter is applied to predict the possible trajectories of moving object and then trajectory feature was extracted as HMM input. Finally, HMM was used for classification of U-turns, illegal turn left, illegal change lanes. The experimental result showed that the method proposed has better robustness and higher recognition rate.
{"title":"Traffic incident detection based on HMM","authors":"Yang Xu","doi":"10.1109/ICIST.2013.6747694","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747694","url":null,"abstract":"For an intelligent transportation system (ITS), traffic incident detection is one of the most important issues. In this paper, we propose a novel traffic incident detection method based on trajectory quantification and Hidden Markov Model (HMM) classifier. First, object detection algorithm that combines geodesic active contour model based on level set theory and background subtraction was proposed and accurate contour of moving object is got. Sencondly, the kalman filter is applied to predict the possible trajectories of moving object and then trajectory feature was extracted as HMM input. Finally, HMM was used for classification of U-turns, illegal turn left, illegal change lanes. The experimental result showed that the method proposed has better robustness and higher recognition rate.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114338596","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 : 2013-03-23DOI: 10.1109/ICIST.2013.6747704
Jinhu Wang, Junxiang Ge, Ming Wei, Wenwen Yu
The relationship between complex refractive index and complex dielectric permittivity is discussed, studied variations in pure-ice complex dielectric permittivity with wavelength and temperature using the LH model. The influence of scattering properties of hexagonal ice crystals due to the change of the complex refractive index was studied using DDA at 94GHz. The results show that the relative error of scattering efficiency, absorption efficiency, asymmetry factor and backscattering efficiency does not exceed 0.24%, 0.24%, 0.09625 % and 0.83% respectively in the case of that the relative error of the real part of the complex refractive index does not exceed 0.22% while the imaginary part remain unchanged; the relative error of absorption efficiency and asymmetry factor do not exceed 1.46%, 0.2065 × 10-4 respectively while scattering efficiency and backscattering efficiency remain constant in the case of that the relative error of the imaginary part of the complex refractive index does not exceed 1.46% whereas the real part remains unchanged.
{"title":"Influence of scattering properties due to complex refractive index of ice","authors":"Jinhu Wang, Junxiang Ge, Ming Wei, Wenwen Yu","doi":"10.1109/ICIST.2013.6747704","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747704","url":null,"abstract":"The relationship between complex refractive index and complex dielectric permittivity is discussed, studied variations in pure-ice complex dielectric permittivity with wavelength and temperature using the LH model. The influence of scattering properties of hexagonal ice crystals due to the change of the complex refractive index was studied using DDA at 94GHz. The results show that the relative error of scattering efficiency, absorption efficiency, asymmetry factor and backscattering efficiency does not exceed 0.24%, 0.24%, 0.09625 % and 0.83% respectively in the case of that the relative error of the real part of the complex refractive index does not exceed 0.22% while the imaginary part remain unchanged; the relative error of absorption efficiency and asymmetry factor do not exceed 1.46%, 0.2065 × 10-4 respectively while scattering efficiency and backscattering efficiency remain constant in the case of that the relative error of the imaginary part of the complex refractive index does not exceed 1.46% whereas the real part remains unchanged.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114440565","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：