It is important to develop a high-performance FFT processor to meet the requirements of real time and low cost in many different systems. So a radix-2 pipelined FFT processor based on Field Programmable Gate Array (FPGA) for Wireless Local Area Networks (WLAN) is proposed. Unlike being stored in the traditional ROM, the twiddle factors in our pipelined FFT processor can be accessed directly. A novel simple address mapping scheme is also proposed. The FFT processor has two pipelines, one is in the execution of complex multiplication of the butterfly unit, and the other is between the RAM modules, which read input data, store temporary variables of butterfly unit and output the final results. Finally, the pipelined 64-point FFT processor can be completely implemented within only 67 clock cycles.
{"title":"Design of Pipelined FFT Processor Based on FPGA","authors":"Bingrui Wang, Qihui Zhang, Tianyong Ao, Mingju Huang","doi":"10.1109/ICCMS.2010.112","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.112","url":null,"abstract":"It is important to develop a high-performance FFT processor to meet the requirements of real time and low cost in many different systems. So a radix-2 pipelined FFT processor based on Field Programmable Gate Array (FPGA) for Wireless Local Area Networks (WLAN) is proposed. Unlike being stored in the traditional ROM, the twiddle factors in our pipelined FFT processor can be accessed directly. A novel simple address mapping scheme is also proposed. The FFT processor has two pipelines, one is in the execution of complex multiplication of the butterfly unit, and the other is between the RAM modules, which read input data, store temporary variables of butterfly unit and output the final results. Finally, the pipelined 64-point FFT processor can be completely implemented within only 67 clock cycles.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123104787","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}
We obtain a new weighted embedding theorem for (K1, K2)-quasiregular mappings, which is the promotion of classic results.
我们得到了(K1, K2)-拟正则映射的一个新的加权嵌入定理，这是对经典结果的推广。
{"title":"Weighted Embedding Theorem for (K1, K2) -Quasiregular Mappings","authors":"Jiantao Gu, Yuxia Tong, X. Meng","doi":"10.1109/ICCMS.2010.332","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.332","url":null,"abstract":"We obtain a new weighted embedding theorem for (K1, K2)-quasiregular mappings, which is the promotion of classic results.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124726149","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}
In this paper we had introduced more tighter bounds by decreasing the redundancy of source letter. Previously the sharper bounds were found if the number of source letter was large and also provided the redundancy ‘r’ of any discrete memory less source satisfied, where PN is the least likely source letter probability. But we decreased the redundancy of source letter (N) to four and five.
在本文中，我们通过减少源字母的冗余引入了更严格的边界。以前，如果源字母的数量很大，并且还提供了任何离散存储器的冗余' r '，其中PN是最不可能的源字母概率，则会发现更清晰的界限。但是我们减少了源字母(N)的冗余到4和5。
{"title":"A Huffman Codes Based Approach to Achieve Minimum Redundancy","authors":"J. Bhullar, P. Sandhu, M. Gupta","doi":"10.1109/ICCMS.2010.177","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.177","url":null,"abstract":"In this paper we had introduced more tighter bounds by decreasing the redundancy of source letter. Previously the sharper bounds were found if the number of source letter was large and also provided the redundancy ‘r’ of any discrete memory less source satisfied, where PN is the least likely source letter probability. But we decreased the redundancy of source letter (N) to four and five.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117080138","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}
This The supply chain management as a management model new rapid development, gradually become a competitive advantage to enhance the overall content of the main strategies. Supply chain services to the value of collaboration is information sharing, information sharing In this paper, the value of in-depth analysis and mining on the basis of the measured value of the establishment of a model-based service pricing model. Pricing model of its ideas and analysis of the pricing of its services and products have a strong guiding significance.
{"title":"Supply Chain Management Based on the Sharing of Inventory Information Analysis Estimates","authors":"Shuqing Lv","doi":"10.1109/ICCMS.2010.323","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.323","url":null,"abstract":"This The supply chain management as a management model new rapid development, gradually become a competitive advantage to enhance the overall content of the main strategies. Supply chain services to the value of collaboration is information sharing, information sharing In this paper, the value of in-depth analysis and mining on the basis of the measured value of the establishment of a model-based service pricing model. Pricing model of its ideas and analysis of the pricing of its services and products have a strong guiding significance.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131088734","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}
Hou Miao-le, Wang Yan-min, Fang Ming-zhu, Guo-Long Hong
This article will discuss how to improve the ability to protect the collection mural with Lidar and Geographic Information System (GIS) technology. Firstly, we gain three dimensional point clouds through the Lidar technology, and make high-precision Digital Orthophoto Map (DOM), which has the same scale as the real collection mural. Secondly, the spatial disease database will be built based on the DOM of collection mural with the GIS technology. Then we can get some useful dataset for protecting collection mural, such as disease map and trend map. Disease map, based on some spatial analysis and spatial statistics, will tell you where the disease is, and how serious the disease is. Lastly, but importantly, we can classify the disease grade based on the collection mural with decision tree. So protector of collection mural knows what’s the most serious disease. It is better than the traditional methods both in accuracy and efficiency. Finally, this article has confirmed the related method efficiency and the precision in the collection mural of Greatly Summons Temple.
{"title":"The Collection Mural Protection Application of the Lidar and GIS Technology","authors":"Hou Miao-le, Wang Yan-min, Fang Ming-zhu, Guo-Long Hong","doi":"10.1109/ICCMS.2010.496","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.496","url":null,"abstract":"This article will discuss how to improve the ability to protect the collection mural with Lidar and Geographic Information System (GIS) technology. Firstly, we gain three dimensional point clouds through the Lidar technology, and make high-precision Digital Orthophoto Map (DOM), which has the same scale as the real collection mural. Secondly, the spatial disease database will be built based on the DOM of collection mural with the GIS technology. Then we can get some useful dataset for protecting collection mural, such as disease map and trend map. Disease map, based on some spatial analysis and spatial statistics, will tell you where the disease is, and how serious the disease is. Lastly, but importantly, we can classify the disease grade based on the collection mural with decision tree. So protector of collection mural knows what’s the most serious disease. It is better than the traditional methods both in accuracy and efficiency. Finally, this article has confirmed the related method efficiency and the precision in the collection mural of Greatly Summons Temple.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122214625","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}
In order to study the influence of the geometric figure on the service life of the converter, four different geometric figures of the converters were analyzed by using finite element method in this paper. Refractory material behavior was described by Drucker-Prager plasticity model combined with strain softening material behavior at tension, and most of the material physical parameters changing with the temperature were considered. During the working process, a mechanical and thermal coupling diagram was introduced to optimize the geometric figure of the converter by software ABAQUS. The stresses of the converter were investigated, especially in the lower brick layers of the wall (the bottom wall transition zone). The result indicates a proper inclination at the joint between the bottom and wall of the converter can reduce the stress concentration, which make the refractory material damage decrease. Therefore the service life of the converter is expected to be prolonged.
{"title":"Optimization Design for the Converter by the Finite Element Method","authors":"Xia Chen, Q. Chang, Yawei Li","doi":"10.1109/ICCMS.2010.115","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.115","url":null,"abstract":"In order to study the influence of the geometric figure on the service life of the converter, four different geometric figures of the converters were analyzed by using finite element method in this paper. Refractory material behavior was described by Drucker-Prager plasticity model combined with strain softening material behavior at tension, and most of the material physical parameters changing with the temperature were considered. During the working process, a mechanical and thermal coupling diagram was introduced to optimize the geometric figure of the converter by software ABAQUS. The stresses of the converter were investigated, especially in the lower brick layers of the wall (the bottom wall transition zone). The result indicates a proper inclination at the joint between the bottom and wall of the converter can reduce the stress concentration, which make the refractory material damage decrease. Therefore the service life of the converter is expected to be prolonged.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121464110","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}
This paper also collects acoustic emission signals during the whole process of single axis compression. Based on the mechanism of acoustic emission and the characters of deformation, this paper carves acoustic emission curves into four periods, and describes of each period, and variation law of macrocosmic mechanical properties are explained further through microcosmic scale.
{"title":"Analysis on Single Axis Compression of Mortar Based on Acoustic Emission on Signals Acquisition","authors":"Shuqing Lv","doi":"10.1109/ICCMS.2010.322","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.322","url":null,"abstract":"This paper also collects acoustic emission signals during the whole process of single axis compression. Based on the mechanism of acoustic emission and the characters of deformation, this paper carves acoustic emission curves into four periods, and describes of each period, and variation law of macrocosmic mechanical properties are explained further through microcosmic scale.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"333 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132040730","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}
Because of the high dimensionality and multiple-input-multi-output nature of civil structure model, it is difficult to design a control strategy to achieve desired stability, robustness with centralized control method. Hierarchical decentralized control strategy is employed in this paper in response to this difficulty. In this approach, the structure to be controlled is divided into a set of substructures, and each substructure is then controlled independently using its local information. (Finally A global coordinator will be used to coordinate among these local controllers) Harmonic controller eliminates interconnection of substructures. With LQR Active control algorithm in Matlab environment,the centralized control strategy was implemented on cantilever structure under earthquake excitation. Simulated results show that hierarchical decentralized control method has a good control effect with preferably suppressed displacement response and less control force. The study in this paper presents a promising means for structural control.
{"title":"Simulation Study on the Hierarchical Decentralized Control of Structural Vibration","authors":"Jinghui Dai","doi":"10.1109/ICCMS.2010.331","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.331","url":null,"abstract":"Because of the high dimensionality and multiple-input-multi-output nature of civil structure model, it is difficult to design a control strategy to achieve desired stability, robustness with centralized control method. Hierarchical decentralized control strategy is employed in this paper in response to this difficulty. In this approach, the structure to be controlled is divided into a set of substructures, and each substructure is then controlled independently using its local information. (Finally A global coordinator will be used to coordinate among these local controllers) Harmonic controller eliminates interconnection of substructures. With LQR Active control algorithm in Matlab environment,the centralized control strategy was implemented on cantilever structure under earthquake excitation. Simulated results show that hierarchical decentralized control method has a good control effect with preferably suppressed displacement response and less control force. The study in this paper presents a promising means for structural control.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123354128","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}
As one of the most promising physical layer technology for next generation cellular system, cooperative multiple points transmission (COMP) brings significant changes to wireless system, on RRM part especially. How to select Cooperative Set (CS) is critical issue for COMP. Based on geometry criteria, this paper proposes two methods of cooperative area selections, ‘UE centric’ and ‘Networks pre-defined’. Simulations with realistic RRM structure and feedback assumptions show that UTRAN LTE downlink system performance could be greatly enhanced by COMP technology. UE centric CS selection provides the best performance gain at the expense of system complexity. Among network predefined CS cases, intra-site CS pattern is recommended with good performance in terms of sector and cell-edge throughput.
{"title":"Downlink System Performance of Cooperative Multiple Points Transmission with Realistic RRM Structure","authors":"Wang Xiaoyi, Kou Mingyan, Qi Xin","doi":"10.1109/ICCMS.2010.495","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.495","url":null,"abstract":"As one of the most promising physical layer technology for next generation cellular system, cooperative multiple points transmission (COMP) brings significant changes to wireless system, on RRM part especially. How to select Cooperative Set (CS) is critical issue for COMP. Based on geometry criteria, this paper proposes two methods of cooperative area selections, ‘UE centric’ and ‘Networks pre-defined’. Simulations with realistic RRM structure and feedback assumptions show that UTRAN LTE downlink system performance could be greatly enhanced by COMP technology. UE centric CS selection provides the best performance gain at the expense of system complexity. Among network predefined CS cases, intra-site CS pattern is recommended with good performance in terms of sector and cell-edge throughput.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122370934","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}
Faced to the vast amounts of data, how to achieve fast and efficient query of moving objects in a given space and time frame, is the problem urgent to be solved to achieve location-based services, intelligent transportation, digital warfare, and many other applications. In this paper a LBS system which can achieve real-time location-based service query is designed, and the prototype system structure and functional analysis of the system also are given. The system can support the traditional location-based services, and has predicted functions of mobile terminal location, as well as the region query functions.
{"title":"Research on Location Service System on Mobile Platform","authors":"Wang Tongzhou","doi":"10.1109/ICCMS.2010.73","DOIUrl":"https://doi.org/10.1109/ICCMS.2010.73","url":null,"abstract":"Faced to the vast amounts of data, how to achieve fast and efficient query of moving objects in a given space and time frame, is the problem urgent to be solved to achieve location-based services, intelligent transportation, digital warfare, and many other applications. In this paper a LBS system which can achieve real-time location-based service query is designed, and the prototype system structure and functional analysis of the system also are given. The system can support the traditional location-based services, and has predicted functions of mobile terminal location, as well as the region query functions.","PeriodicalId":153175,"journal":{"name":"2010 Second International Conference on Computer Modeling and Simulation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128003309","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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