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.2013.6747704
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}
Pub Date : 2013-03-23DOI: 10.1109/ICIST.2013.6747837
Yafang Wang, Xiaozhe Zheng, L. Guan
In view of IP multimedia subsystem (IMS) which is the focus of technical research in the field of communication, analyse the scheme of IMS network based on service provision and service triggering mechanism. According to the application triggering architecture, service triggering data and service triggering process, this paper carried out a detailed analysis, and set up IMS system basing on Linux operating system. Then take a test to the system function whose results show that the service scheme ensures the normal use of services provided by IMS service architecture when a user is performing IMS calling.
{"title":"Research on service scheme in IP multimedia subsystem network","authors":"Yafang Wang, Xiaozhe Zheng, L. Guan","doi":"10.1109/ICIST.2013.6747837","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747837","url":null,"abstract":"In view of IP multimedia subsystem (IMS) which is the focus of technical research in the field of communication, analyse the scheme of IMS network based on service provision and service triggering mechanism. According to the application triggering architecture, service triggering data and service triggering process, this paper carried out a detailed analysis, and set up IMS system basing on Linux operating system. Then take a test to the system function whose results show that the service scheme ensures the normal use of services provided by IMS service architecture when a user is performing IMS calling.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"37 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":"125069666","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.2013.6747780
Songzhao Xie, Chengyou Wang, Zhiqiang Yang
In recent years, the algorithm of Bayer patterned image compression based on “structure separation” has achieved better image quality. On the basis of previous work, the algorithm based on the All Phase Inverse Discrete Cosine Biorthogonal Transform (APIDCBT) and All Phase IDCT (APIDCT) interpolation is proposed in this paper. Instead of the conventional Discrete Cosine Transform (DCT), the APIDCBT is applied to the JPEG image compression (APIDCBT-JPEG), which significantly reduces complex multiplications and makes the quantization table simpler. Two kinds of interpolation methods to the decompressed image data are also discussed in this paper, including bilinear interpolation and the novel interpolation method based on APIDCT. Experimental results show that the proposed algorithm outperforms the algorithm based on “structure separation”; and the APIDCT interpolation performs close to the bilinear interpolation method and behaves better than it at high bit rates.
{"title":"Bayer patterned image compression based on APIDCBT-JPEG and all phase IDCT interpolation","authors":"Songzhao Xie, Chengyou Wang, Zhiqiang Yang","doi":"10.1109/ICIST.2013.6747780","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747780","url":null,"abstract":"In recent years, the algorithm of Bayer patterned image compression based on “structure separation” has achieved better image quality. On the basis of previous work, the algorithm based on the All Phase Inverse Discrete Cosine Biorthogonal Transform (APIDCBT) and All Phase IDCT (APIDCT) interpolation is proposed in this paper. Instead of the conventional Discrete Cosine Transform (DCT), the APIDCBT is applied to the JPEG image compression (APIDCBT-JPEG), which significantly reduces complex multiplications and makes the quantization table simpler. Two kinds of interpolation methods to the decompressed image data are also discussed in this paper, including bilinear interpolation and the novel interpolation method based on APIDCT. Experimental results show that the proposed algorithm outperforms the algorithm based on “structure separation”; and the APIDCT interpolation performs close to the bilinear interpolation method and behaves better than it at high bit rates.","PeriodicalId":415759,"journal":{"name":"2013 IEEE Third International Conference on Information Science and Technology (ICIST)","volume":"56 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":"134105201","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.2013.6747643
Gaoming Du, Jing He, Y. Song, Duoli Zhang, Huajie Wu
Packet-circuit switching adopted by network on chip is a new data transmission protocol, which establishes a route by sending a request packet and transfers data by circuit switching. In order to make the network based on the protocol show excellent performance, we build data transmission link as rapidly and successfully as possible, which depends on the quality of routing algorithm. In this paper, XY routing algorithm, Turn routing algorithm and Retrograde-Turn routing algorithm are applied on Network-on-Chip. According to different packet lengths and injection rates, we construct different network congestion situations to test network performance. Compared with the XY routing algorithm, the experiment results demonstrate that the Retrograde-Turn routing algorithm can improve average throughput and average latency by 32.99% and 12.16% at best, respectively, when the packet length is long and the injection rate is high.
{"title":"Comparison of NoC routing algorithms based on packet-circuit switching","authors":"Gaoming Du, Jing He, Y. Song, Duoli Zhang, Huajie Wu","doi":"10.1109/ICIST.2013.6747643","DOIUrl":"https://doi.org/10.1109/ICIST.2013.6747643","url":null,"abstract":"Packet-circuit switching adopted by network on chip is a new data transmission protocol, which establishes a route by sending a request packet and transfers data by circuit switching. In order to make the network based on the protocol show excellent performance, we build data transmission link as rapidly and successfully as possible, which depends on the quality of routing algorithm. In this paper, XY routing algorithm, Turn routing algorithm and Retrograde-Turn routing algorithm are applied on Network-on-Chip. According to different packet lengths and injection rates, we construct different network congestion situations to test network performance. Compared with the XY routing algorithm, the experiment results demonstrate that the Retrograde-Turn routing algorithm can improve average throughput and average latency by 32.99% and 12.16% at best, respectively, when the packet length is long and the injection rate is high.","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":"131323708","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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