应用程序间通信（Inter-application communication IAC）是指在计算机系统中不同程序进程进行有效的数据交换和信息交互的技术，它是实现软件协同工作和软件系统集成的基础．在分析电信网管计算机应用需求的基础上，给出了电信网管的...应用程序间通信（Inter-application communication IAC）是指在计算机系统中不同程序进程进行有效的数据交换和信息交互的技术，它是实现软件协同工作和软件系统集成的基础．在分析电信网管计算机应用需求的基础上，给出了电信网管的应用程序间的通信模型，研究了应用程序间的通信方式，通信消息的类型、结构及不同的传播模式，并绐出了一种消息表达方式和实现方法．展开更多
The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data....The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data. The fundamental mismatch between data delivery and naming attachment points leads to a lot of challenges, e.g., mapping from data name to IP address, handling dynamics of underlying topology, scaling up the data distribution, and securing communication, etc. Informationcentric networking(ICN) is proposed to shift the focus of communication paradigm from where to what, by making the named data the first-class citizen in the network, The basic consensus of ICN is to name the data independent from its container(space dimension) and session(time dimension), which breaks the limitation of point-to-point IP semantic. It scales up data distribution by utilizing available resources, and facilitates communication to fit diverse connectivity and heterogeneous networks. However, there are only a few consensuses on the detailed design of ICN, and quite a few different ICN architectures are proposed. This paper reveals the rationales of ICN from the perspective of the Internet evolution, surveys different design choices, and discusses on two debatable topics in ICN, i.e.,self-certifying versus hierarchical names, and edge versus pervasive caching. We hope this survey helps clarify some mis-understandings on ICN and achieve more consensuses.展开更多
The urban traffic information manageanent has become an important way of solving traffic jam of cities. With the wider use of the third generation of mobile conmmunication （3G） networks, information management based...The urban traffic information manageanent has become an important way of solving traffic jam of cities. With the wider use of the third generation of mobile conmmunication （3G） networks, information management based on 3G will be a central issue of application. The paper designs a fi-amework of Global Posititoning System （GPS） vehicle navigating and guiding system using 3G mobile network and Glbal Information System （GIS） electronic map according to moving objects. It discusses moving object＇s time-space attrihltes which will be described by a five-field and a directed graph. It analyzes the GPS mobile apparatus＇ s software functions and hardware structures. Anti it improves the function of GPS mobile apparatus which provide the guiding function utilizing the shared information of traffic. The navigation based on the shortest path algortithm is been advanced to one based on the real-time traffic flow of moving objects, which help people travelling on roads more convenietly.展开更多
Relationships between application layer protocols in softswitch are explored in this paper.Two notions, i.e.protocol relationship and protocol grouping, are proposed, which are not clearly defined and even not paid mu...Relationships between application layer protocols in softswitch are explored in this paper.Two notions, i.e.protocol relationship and protocol grouping, are proposed, which are not clearly defined and even not paid much attention to before.On the basis of a well known protocol relationship named protocol conversion, three novel protocol relationships including protocol collaboration relationship, protocol cooperation relationship and protocol independent relationship are presented, so that protocol relationships are classified into four types.According to the functionality and purpose of each protocol, main protocols related to softswitch are divided into five groups.As to protocol conversion in softswitch, information flow trail(IFT) is utilized to facilitate problem solving.A decision rule for protocol conversion mode is proposed to guide how to choose between direct conversion and indirect conversion.A property of protocol relationships in softswitch is induced from all kinds of service scenarios of softswitch.This property summarizes protocol relationships within each protocol group or between two specific protocol groups.A merit of protocol grouping together with classification of protocol relationship is also presented.The effort of this paper pushes the protocol engineering to go ahead.展开更多
Intelligent transportation system (ITS) has become a popular research topic to meet the increased demands of transportation safety,traffic efficiency,comfort in the journey and environment protection,etc. ITS applicat...Intelligent transportation system (ITS) has become a popular research topic to meet the increased demands of transportation safety,traffic efficiency,comfort in the journey and environment protection,etc. ITS applications impose higher requirements on wireless communication systems. For example,safety-related ITS services must always be low latency and entertainment-related ITS services need high data rate. The ITS dedicated short range communications (DSRC) technology to support the safetyrelated application is still under development, while long term evolution (LTE),as the next generation mobile communication systems,offers an efficient communication platform for ITS information exchange , which can meet most ITS services requirements of latency,data rate as well as communication range. In this paper,based on the time-division duplex (TDD) mode of LTE,i.e. TD-LTE,an enhanced TD-LTE network architecture is introduced to better support safety-related ITS application with low latency requirement,and some enhanced access schemes of TD-LTE are proposed to improve the performance of supporting the high-speed IP-based ITS applications in hotspots. At last,two practical application scenarios of enhanced TD-LTE systems are given.展开更多
Due to the rapid rise of mobile phones around the globe, many consumers, researchers, clinicians, and health services are starting to see their utility in health. As well as a health informatics role in improving the ...Due to the rapid rise of mobile phones around the globe, many consumers, researchers, clinicians, and health services are starting to see their utility in health. As well as a health informatics role in improving the uptake and efficiency of current health services, mobile communication-assisted health care （m-health） also opens opportunities for services that are strikingly new and curative, in particular delivering personal health behaviour change programmes. Herein, we report the preliminary findings of a health-promotion survey titled ＂Mobile Apps User Trend Analysis of Turkish People＂. The survey examines the information needs and media preferences of women and men who research health information and use mobile apps for their healthcare in everyday life. Also this study tries to recover the behaviour of people and what applications they are downloading with respect to health, wellness, and medical mobile applicaitons. In looking the data, it appears that adoption of mHealth is growing at a furious pace. In this context, improvements to health communication have the potential to make a significant role to a promising new medium for health education and communication.展开更多
In this paper, the incorporation and use of ICT （Information and Communication Technologies） in organizations are recognized as a process that occurs in stages involving progressive levels of maturity towards the in...In this paper, the incorporation and use of ICT （Information and Communication Technologies） in organizations are recognized as a process that occurs in stages involving progressive levels of maturity towards the integration of the extended value chain. In the beginning, ICT are applied to the digitalization of tasks and processes within the organization that facilitates the transition to the stage of integration of information systems and internal communication. Once this level of maturity is reached, it is possible to extend the application oflCT in inter-organizational processes. The main objective of this work is to identify factors that encourage the integration of inter-organizational information systems and the development of the extended value chain. One of the difficulties that this kind of study has to face is on the lack of precise empirical tools that enable comparability of results, both in time and between sectors and countries. It is therefore necessary to perform specific works that shed light on whether the efforts of local organizations to integrate ICT enhance collaborative processes with the environment and the factors influencing these results. It was applied a mixed methodology that combines ad-hoc survey and Tool Assessment Websites, carried out on 23 industrial manufacturing companies located in Rosario and Cordoba Argentina. The search was oriented to the identification of a limited number of indicators, but with the advantage of being amenable to being followed in time, for a number of companies in the region under study. The results indicate that companies with customers and/or suppliers abroad denote a higher level of maturity in the application of ICT.展开更多
你是否需要进行e-mail、数据及传真通信而不管你距离电话线有多远?基于RAM Mobile Data Network的、报价499美元的Megahertz AllPoints Wireless PC Card可能正是你在路途中进行通信所需的工具。 AllPoints的硬件由一个TypeⅡ PC Card...你是否需要进行e-mail、数据及传真通信而不管你距离电话线有多远?基于RAM Mobile Data Network的、报价499美元的Megahertz AllPoints Wireless PC Card可能正是你在路途中进行通信所需的工具。 AllPoints的硬件由一个TypeⅡ PC Card组成。展开更多
文摘应用程序间通信（Inter-application communication IAC）是指在计算机系统中不同程序进程进行有效的数据交换和信息交互的技术，它是实现软件协同工作和软件系统集成的基础．在分析电信网管计算机应用需求的基础上，给出了电信网管的应用程序间的通信模型，研究了应用程序间的通信方式，通信消息的类型、结构及不同的传播模式，并绐出了一种消息表达方式和实现方法．
基金supported by the National High-tech R&D Program("863"Program)of China(No.2013AA013505)the National Science Foundation of China(No.61472213)State Scholarship Fund from China Scholarship Council(No.201406210270)
文摘The basic function of the Internet is to delivery data(what) to serve the needs of all applications. IP names the attachment points(where) to facilitate ubiquitous interconnectivity as the current way to deliver data. The fundamental mismatch between data delivery and naming attachment points leads to a lot of challenges, e.g., mapping from data name to IP address, handling dynamics of underlying topology, scaling up the data distribution, and securing communication, etc. Informationcentric networking(ICN) is proposed to shift the focus of communication paradigm from where to what, by making the named data the first-class citizen in the network, The basic consensus of ICN is to name the data independent from its container(space dimension) and session(time dimension), which breaks the limitation of point-to-point IP semantic. It scales up data distribution by utilizing available resources, and facilitates communication to fit diverse connectivity and heterogeneous networks. However, there are only a few consensuses on the detailed design of ICN, and quite a few different ICN architectures are proposed. This paper reveals the rationales of ICN from the perspective of the Internet evolution, surveys different design choices, and discusses on two debatable topics in ICN, i.e.,self-certifying versus hierarchical names, and edge versus pervasive caching. We hope this survey helps clarify some mis-understandings on ICN and achieve more consensuses.
文摘The urban traffic information manageanent has become an important way of solving traffic jam of cities. With the wider use of the third generation of mobile conmmunication （3G） networks, information management based on 3G will be a central issue of application. The paper designs a fi-amework of Global Posititoning System （GPS） vehicle navigating and guiding system using 3G mobile network and Glbal Information System （GIS） electronic map according to moving objects. It discusses moving object＇s time-space attrihltes which will be described by a five-field and a directed graph. It analyzes the GPS mobile apparatus＇ s software functions and hardware structures. Anti it improves the function of GPS mobile apparatus which provide the guiding function utilizing the shared information of traffic. The navigation based on the shortest path algortithm is been advanced to one based on the real-time traffic flow of moving objects, which help people travelling on roads more convenietly.
基金National Science Fund for Distinguished Young Scholars (No. 60525110)National 973 Program (No. 2007CB307100, 2007CB307103)+1 种基金National Natural Science Foundation of China (No. 60902051)Development Fund Project for Electronic and Information Industry (Mobile Service and Application System Based on 3G)
文摘Relationships between application layer protocols in softswitch are explored in this paper.Two notions, i.e.protocol relationship and protocol grouping, are proposed, which are not clearly defined and even not paid much attention to before.On the basis of a well known protocol relationship named protocol conversion, three novel protocol relationships including protocol collaboration relationship, protocol cooperation relationship and protocol independent relationship are presented, so that protocol relationships are classified into four types.According to the functionality and purpose of each protocol, main protocols related to softswitch are divided into five groups.As to protocol conversion in softswitch, information flow trail(IFT) is utilized to facilitate problem solving.A decision rule for protocol conversion mode is proposed to guide how to choose between direct conversion and indirect conversion.A property of protocol relationships in softswitch is induced from all kinds of service scenarios of softswitch.This property summarizes protocol relationships within each protocol group or between two specific protocol groups.A merit of protocol grouping together with classification of protocol relationship is also presented.The effort of this paper pushes the protocol engineering to go ahead.
基金National Science and Technology Major Project (No.2012ZX03005010-005)
文摘Intelligent transportation system (ITS) has become a popular research topic to meet the increased demands of transportation safety,traffic efficiency,comfort in the journey and environment protection,etc. ITS applications impose higher requirements on wireless communication systems. For example,safety-related ITS services must always be low latency and entertainment-related ITS services need high data rate. The ITS dedicated short range communications (DSRC) technology to support the safetyrelated application is still under development, while long term evolution (LTE),as the next generation mobile communication systems,offers an efficient communication platform for ITS information exchange , which can meet most ITS services requirements of latency,data rate as well as communication range. In this paper,based on the time-division duplex (TDD) mode of LTE,i.e. TD-LTE,an enhanced TD-LTE network architecture is introduced to better support safety-related ITS application with low latency requirement,and some enhanced access schemes of TD-LTE are proposed to improve the performance of supporting the high-speed IP-based ITS applications in hotspots. At last,two practical application scenarios of enhanced TD-LTE systems are given.
文摘Due to the rapid rise of mobile phones around the globe, many consumers, researchers, clinicians, and health services are starting to see their utility in health. As well as a health informatics role in improving the uptake and efficiency of current health services, mobile communication-assisted health care （m-health） also opens opportunities for services that are strikingly new and curative, in particular delivering personal health behaviour change programmes. Herein, we report the preliminary findings of a health-promotion survey titled ＂Mobile Apps User Trend Analysis of Turkish People＂. The survey examines the information needs and media preferences of women and men who research health information and use mobile apps for their healthcare in everyday life. Also this study tries to recover the behaviour of people and what applications they are downloading with respect to health, wellness, and medical mobile applicaitons. In looking the data, it appears that adoption of mHealth is growing at a furious pace. In this context, improvements to health communication have the potential to make a significant role to a promising new medium for health education and communication.
文摘In this paper, the incorporation and use of ICT （Information and Communication Technologies） in organizations are recognized as a process that occurs in stages involving progressive levels of maturity towards the integration of the extended value chain. In the beginning, ICT are applied to the digitalization of tasks and processes within the organization that facilitates the transition to the stage of integration of information systems and internal communication. Once this level of maturity is reached, it is possible to extend the application oflCT in inter-organizational processes. The main objective of this work is to identify factors that encourage the integration of inter-organizational information systems and the development of the extended value chain. One of the difficulties that this kind of study has to face is on the lack of precise empirical tools that enable comparability of results, both in time and between sectors and countries. It is therefore necessary to perform specific works that shed light on whether the efforts of local organizations to integrate ICT enhance collaborative processes with the environment and the factors influencing these results. It was applied a mixed methodology that combines ad-hoc survey and Tool Assessment Websites, carried out on 23 industrial manufacturing companies located in Rosario and Cordoba Argentina. The search was oriented to the identification of a limited number of indicators, but with the advantage of being amenable to being followed in time, for a number of companies in the region under study. The results indicate that companies with customers and/or suppliers abroad denote a higher level of maturity in the application of ICT.
文摘你是否需要进行e-mail、数据及传真通信而不管你距离电话线有多远?基于RAM Mobile Data Network的、报价499美元的Megahertz AllPoints Wireless PC Card可能正是你在路途中进行通信所需的工具。 AllPoints的硬件由一个TypeⅡ PC Card组成。
