Maximum Doppler spread or, equivalently, the vehicle velocity, can be estimated to improve handoff algorithms and tune parameters for systems when channel conditions change. This paper presents a new mobile station velocity estimator based on the normalized auto-covariance of the Rician fading signal and that of the squared envelope respectively of the received signal. The proposed algorithm is based on such a truth that estimation from auto-covariance function of received signal is more accurate than that from squared envelope when LOS component is not strong (K is small), and the conclusion is contrary if K is large. Compared to previous approaches, the proposed algorithm is shown to have better performance in a microcellular /macro cellular propagation environment, which can be characterized by no isotropic scattering and/or a specular component of unknown strength. Simulations show that the proposed algorithm is robust in both microcellular and macro cellular environments.
{"title":"A Novel Velocity Estimation Algorithm of Narrow-Band Mobile Communication Channels","authors":"Zhanghong Hao, Liu Yong, Gao Junxiang","doi":"10.1109/ICMECG.2010.82","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.82","url":null,"abstract":"Maximum Doppler spread or, equivalently, the vehicle velocity, can be estimated to improve handoff algorithms and tune parameters for systems when channel conditions change. This paper presents a new mobile station velocity estimator based on the normalized auto-covariance of the Rician fading signal and that of the squared envelope respectively of the received signal. The proposed algorithm is based on such a truth that estimation from auto-covariance function of received signal is more accurate than that from squared envelope when LOS component is not strong (K is small), and the conclusion is contrary if K is large. Compared to previous approaches, the proposed algorithm is shown to have better performance in a microcellular /macro cellular propagation environment, which can be characterized by no isotropic scattering and/or a specular component of unknown strength. Simulations show that the proposed algorithm is robust in both microcellular and macro cellular environments.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134526431","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}
The present study give a process integration evaluation method for supply chain integration of the Fourth Party Logistics (4PL), based on fuzzy theory. First, we study the requirements of 4PL, and then transform the collected logistics requirements into the supply chain process design requirements using quality function deployment (QFD) method. Second, we eliminate the non-value process using benchmarking method and rebuild the supply chain based on fuzzy evaluation theory. Third, the optimal model of 4PL is given using multipurpose optimal theory in order that the whole maximum value of partners within 4PL is achieved under time, quality, cost, and service constraints. Fourth, we proposed the evaluation method of 4PL integration solution based on the fuzzy Analytic Hierarchy Process (AHP) method. In the end, the paper point that 4PL is bound to become the direction for Chinese transport enterprises and 4PL market will be promising in future.
{"title":"The Process Integration Evaluation Method of the Fourth Party Logistics Using Fuzzy Theory","authors":"Z. Leina, Pan Tiejun, Yan Guoqing","doi":"10.1109/ICMECG.2010.71","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.71","url":null,"abstract":"The present study give a process integration evaluation method for supply chain integration of the Fourth Party Logistics (4PL), based on fuzzy theory. First, we study the requirements of 4PL, and then transform the collected logistics requirements into the supply chain process design requirements using quality function deployment (QFD) method. Second, we eliminate the non-value process using benchmarking method and rebuild the supply chain based on fuzzy evaluation theory. Third, the optimal model of 4PL is given using multipurpose optimal theory in order that the whole maximum value of partners within 4PL is achieved under time, quality, cost, and service constraints. Fourth, we proposed the evaluation method of 4PL integration solution based on the fuzzy Analytic Hierarchy Process (AHP) method. In the end, the paper point that 4PL is bound to become the direction for Chinese transport enterprises and 4PL market will be promising in future.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131877157","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}
With Innovative capital perspective, the proportion of R & D personnel, R & D intensity, R & D productivity and per capita number of patents are constructed as the industry's innovation capacity evaluation indexes. Using cloud theoretical framework, the evaluation method of industry’s innovation capacity based on cloud model is built. Through the backward cloud algorithm, this method combines qualitative and quantitative evaluation for the average level of innovation capability, the degree of difference and the stability. In accordance with cloud diagrams generated by forward cloud algorithm being reflected in the simulation of innovation capability, a more intuitive way for decision-makers describes innovation capacity. Then, the model validation and simulation results with the sample of 170 listed companies in the manufacturing sector data in 2004, reflects the lack of innovative capacity of China's manufacturing industry and showed unstable situation. According to cloud theory, this instability comes from policy, market, knowledge networks, and other environmental factors, and thereby it gives some policy recommendations to enhance industry innovation capacity.
{"title":"Evaluation Method of the Industry's Innovation Capacity Based on Cloud Model","authors":"Lin Shan, Xu Shenghua","doi":"10.1109/ICMECG.2010.62","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.62","url":null,"abstract":"With Innovative capital perspective, the proportion of R & D personnel, R & D intensity, R & D productivity and per capita number of patents are constructed as the industry's innovation capacity evaluation indexes. Using cloud theoretical framework, the evaluation method of industry’s innovation capacity based on cloud model is built. Through the backward cloud algorithm, this method combines qualitative and quantitative evaluation for the average level of innovation capability, the degree of difference and the stability. In accordance with cloud diagrams generated by forward cloud algorithm being reflected in the simulation of innovation capability, a more intuitive way for decision-makers describes innovation capacity. Then, the model validation and simulation results with the sample of 170 listed companies in the manufacturing sector data in 2004, reflects the lack of innovative capacity of China's manufacturing industry and showed unstable situation. According to cloud theory, this instability comes from policy, market, knowledge networks, and other environmental factors, and thereby it gives some policy recommendations to enhance industry innovation capacity.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123674582","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}
During recent years, electronic business industry has been developed rapidly. Some companies in the industry have been listed on the security market overseas or in the domestic. They have achieved excellent performance in the stock market, and given great value returns to the shareholders. Chinese economy is experiencing an important period of transforming industrial and economic structures. More and more electronic information and new economy companies will be selected as members of public financing market. Competition, comparison and evaluation among them are necessary. Thus, the efficiency evaluation on the performance of listed e-commerce companies is very important. By employing some financial indicators of the companies, AHP (Analytical Hierarchy Process) and DEA (Data Envelopment Analysis) models are utilized to evaluate the efficiency of six selected “pure” e-commerce list companies. The paper aims at introducing a new quantitative method in evaluating and comparing the performance of the listed e-commerce companies.
{"title":"Efficiency Evaluation of Pure e-Commerce Companies Listed in Stock Market in China Based on AHP-DEA","authors":"Tong Li, Liping Chen","doi":"10.1109/ICMECG.2010.44","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.44","url":null,"abstract":"During recent years, electronic business industry has been developed rapidly. Some companies in the industry have been listed on the security market overseas or in the domestic. They have achieved excellent performance in the stock market, and given great value returns to the shareholders. Chinese economy is experiencing an important period of transforming industrial and economic structures. More and more electronic information and new economy companies will be selected as members of public financing market. Competition, comparison and evaluation among them are necessary. Thus, the efficiency evaluation on the performance of listed e-commerce companies is very important. By employing some financial indicators of the companies, AHP (Analytical Hierarchy Process) and DEA (Data Envelopment Analysis) models are utilized to evaluate the efficiency of six selected “pure” e-commerce list companies. The paper aims at introducing a new quantitative method in evaluating and comparing the performance of the listed e-commerce companies.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123738511","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}
Under the environment of network economy, the e-commerce, representing the cyber economy, needs new business models to enlarge markets and profits. The outsourcing e-commerce model introduces the idea of ‘user involved in content creation’, and makes the best of the innovation passion of cyber citizen, then gains the originality with the lowest cost. This paper analyzes the main features, operation modes, and system architecture of the e-commerce platform. the research indicates that the operation modes includes pull mode and push mode, integrative mode and vertical mode, then the functions of main subsystems, registration and examination system, demands and products promotion system, and payment system are described.
{"title":"Outsourcing E-Commerce Model and Platform System Structure","authors":"P. Ling, Zhang Mian","doi":"10.1109/ICMECG.2010.32","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.32","url":null,"abstract":"Under the environment of network economy, the e-commerce, representing the cyber economy, needs new business models to enlarge markets and profits. The outsourcing e-commerce model introduces the idea of ‘user involved in content creation’, and makes the best of the innovation passion of cyber citizen, then gains the originality with the lowest cost. This paper analyzes the main features, operation modes, and system architecture of the e-commerce platform. the research indicates that the operation modes includes pull mode and push mode, integrative mode and vertical mode, then the functions of main subsystems, registration and examination system, demands and products promotion system, and payment system are described.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127185150","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 terms of the electronic commerce (E-commerce) definition and its development history we find out that the emergence of e-commerce not only brought tremendous opportunities for society development, but also played a tremendous role in promoting modernization and information of enterprise management. The discussion from internal and external environments in this paper shows that E-commerce has become necessary as a strategy in business operation. According to the application of E-commerce in function processes of enterprise management, traditional management style and means need to be changed to enhance and upgrade enterprise’s competitiveness and advantage. The results provide support to the idea of the study and indicate that E-commerce must take strategic move rather than as an adjunct to existing institutions.
{"title":"Study on Impact of e-Commerce Development on Enterprises Operation and Management","authors":"Shanshan Dong, Zou Lei","doi":"10.1109/ICMECG.2010.60","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.60","url":null,"abstract":"In terms of the electronic commerce (E-commerce) definition and its development history we find out that the emergence of e-commerce not only brought tremendous opportunities for society development, but also played a tremendous role in promoting modernization and information of enterprise management. The discussion from internal and external environments in this paper shows that E-commerce has become necessary as a strategy in business operation. According to the application of E-commerce in function processes of enterprise management, traditional management style and means need to be changed to enhance and upgrade enterprise’s competitiveness and advantage. The results provide support to the idea of the study and indicate that E-commerce must take strategic move rather than as an adjunct to existing institutions.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"604 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127520852","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}
Housing industrialization is the inevitable trend of future development in China. Mass Customization becomes an effective way of realizing housing industry because of its requirements of customization and industrialization. Implementation of mass customization relies on the product family platform. This paper researches on building a MC product family integration platform based on value chain of residential products and analysis the logistics and information flow integration of platform.
{"title":"A MC Product Family Integration Platform of Residential Products Based on Value Chain","authors":"Y. Jiao, Huihui Fei, W. Yi, Jun Du, Ying Wang","doi":"10.1109/ICMECG.2010.38","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.38","url":null,"abstract":"Housing industrialization is the inevitable trend of future development in China. Mass Customization becomes an effective way of realizing housing industry because of its requirements of customization and industrialization. Implementation of mass customization relies on the product family platform. This paper researches on building a MC product family integration platform based on value chain of residential products and analysis the logistics and information flow integration of platform.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121298456","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 considers Allinpay & Open-union as the potential entrant bank card organizations, and builds two Game models which are Cournot model and Stackelberg model to analyze the asymmetrical competition between Union Pay and Allinpay & Open-union. From the analysis, this paper gives follow conclusions: (1) The first-mover advantage makes Union Pay to decide the equilibrium output and gain the maximum profit; (2) Union Pay as the incumbent bank card organization will announce a big production to prevent Allinpay & Open-union from accessing to markets. Therefore, Allinpay & Open-union should take to the rapid establishment of networks to successfully enter the market.
{"title":"The Game Analysis on the Asymmetrical Competition between UnionPay and Allinpay & Open-Union","authors":"Shuai Qinghong, Jia Wang","doi":"10.1109/ICMECG.2010.45","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.45","url":null,"abstract":"This paper considers Allinpay & Open-union as the potential entrant bank card organizations, and builds two Game models which are Cournot model and Stackelberg model to analyze the asymmetrical competition between Union Pay and Allinpay & Open-union. From the analysis, this paper gives follow conclusions: (1) The first-mover advantage makes Union Pay to decide the equilibrium output and gain the maximum profit; (2) Union Pay as the incumbent bank card organization will announce a big production to prevent Allinpay & Open-union from accessing to markets. Therefore, Allinpay & Open-union should take to the rapid establishment of networks to successfully enter the market.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129515678","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, from the innovated view that whether the customer held the obvious purchasing purpose, does research about the phenomenon of irrational purchasing based on the C2C e-business platform. The paper used the method of empirical study to explore the influence which the five factors (the convenience of supplier information acquisition, the convenience of price information acquisition, (other) buyer’s assessment, the seller credit, the convenience of the payment) made on two kinds of different irrational purchasing: the one with obvious purchasing purpose and the one without. What’s more, the paper displayed this relationship by regression equation which will benefit the follow-up study and the business decision-making.
{"title":"How Will Purchasing Purpose Influence Unreasonable Consumption in C2C Purchasing?","authors":"Junfeng Liao, Yao Wan","doi":"10.1109/ICMECG.2010.33","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.33","url":null,"abstract":"This paper, from the innovated view that whether the customer held the obvious purchasing purpose, does research about the phenomenon of irrational purchasing based on the C2C e-business platform. The paper used the method of empirical study to explore the influence which the five factors (the convenience of supplier information acquisition, the convenience of price information acquisition, (other) buyer’s assessment, the seller credit, the convenience of the payment) made on two kinds of different irrational purchasing: the one with obvious purchasing purpose and the one without. What’s more, the paper displayed this relationship by regression equation which will benefit the follow-up study and the business decision-making.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130651147","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}
It is well known that e-commerce can help firms reduce cost, enlarge market and enhance efficiency etc.. Yet, e-commerce is not being adopted readily by small and medium-sized enterprises in China. So it’s necessary to explore the mechanisms affecting its adoption and implement. Based on literature review, various types of factors previously considered are examined. According to this, a multi-level conceptual model of these aspects of factors affecting e-commerce adoption in Chinese SMEs is proposed on the basis of innovation diffusion theory, technology acceptance model, institutional theory and strategic orientation theory. A series of propositions are developed. Further research suggestions of the theoretical framework are discussed lastly.
{"title":"A Conceptual Model of Factors Affecting e-Commerce Adoption by SMEs in China","authors":"Jinlong Bao, Xuewen Sun","doi":"10.1109/ICMECG.2010.43","DOIUrl":"https://doi.org/10.1109/ICMECG.2010.43","url":null,"abstract":"It is well known that e-commerce can help firms reduce cost, enlarge market and enhance efficiency etc.. Yet, e-commerce is not being adopted readily by small and medium-sized enterprises in China. So it’s necessary to explore the mechanisms affecting its adoption and implement. Based on literature review, various types of factors previously considered are examined. According to this, a multi-level conceptual model of these aspects of factors affecting e-commerce adoption in Chinese SMEs is proposed on the basis of innovation diffusion theory, technology acceptance model, institutional theory and strategic orientation theory. A series of propositions are developed. Further research suggestions of the theoretical framework are discussed lastly.","PeriodicalId":129936,"journal":{"name":"2010 International Conference on Management of e-Commerce and e-Government","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122472981","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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