“互联网+”背景下新媒体新技术在职业教育教学的应用研究

随着人类社会的发展,各种各样的媒体技术被广泛应用在生活、生产、军事等领域。在教学上,许多媒体正在发挥着越来越重要的作用,不断地将更多“新”的传播媒体引入教学应用,为教育传播的发展提供了巨大的机遇。“新媒体新技术”是一个相对的概念,新媒体新技术是建立计算机网络、数字化基础上的,为人民生活提供的不仅仅是新闻信息,更重要是在各个领域都发挥了举足轻重的作用,深受民众喜欢。     

一种新的下一代无线个人通信网络

下一代无线通信网络是以用户为中心和异构的,不仅支持网络的自动配置和适应性,而且使用扩展多跳的无线个域网(WPAN)。与此同时,它将以一种透明的方式向用户提供多种类型的服务,这就需要有效地把异构网络技术与不同类型的协议结合起来,形成一个完整的网络体系,网络整合的关键是通过IP技术来达到协议的整合。文中介绍一种新的适用于目前和未来无线个人通信及相关服务的无线个人通信网络架构及其关键技术。     

Toward the creation of a new medium for the multimedia era

It is expected that various new types of telecommunications services will emerge based on multimedia technologies. A concept of hypercommunication is proposed that merges human communication in cyberspace involving various people in different places, different times, and even different cultures, as well as communication with human-like agents generated by computers. Technologies necessary to realize this new telecommunications concept are described along with several research examples being done at ATR Media Integration and Communications Research Laboratories     

下一代移动通信中的多天线技术

本文详细地介绍了无线通信中的空间通信技术 ,结合空时处理技术分析了各种多天线系统的原理和应用。文章追踪了空间通信领域的一些最新动态 ,并在最后给出了不同多天线技术对改善系统容量的作用     

无线通信抗干扰技术及发展趋势

由于通信系统装备生存于纷繁复杂的电磁环境之中,容易受到敌方的侦收、干扰和攻击等威胁。因此,未来信息战对通信系统装备的抗干扰能力提出了更高更新的要求,必须研究有效的抗干扰技术以对付日益严重的干扰威胁。对典型的抗干扰技术及新型抗干扰技术进行了介绍,并给出了其发展趋势。     

Designing communication systems for decentralized organizations: anew role for technical communicators

It is pointed out that many organizations have decentralized their operations to respond more quickly to rapid changes in markets and technologies. Decentralization has legitimized crossfunctional communication and decision making at relatively low levels in these organizations as a means of improving the quantity and timeliness of information. However, decentralization can adversely affect an organization's communications unless a new communication system is designed as part of the altered communication process. It is suggested that working within a new approach to organizational change, called sociotechnical design, technical communicators can help define performance standards for new communication systems, including those integrated with computer-mediated information systems. The objectives of sociotechnical design are consistent with the language-action perspective of the modern office. That perspective asserts that language organizes work relationships and actions by means of conversations (or transactions) in which requests and promises are made among individuals and groups. These conversations are structured by procedures, policy guides, handbooks, training materials, and a host of other communications     

Network evolution and multimedia communication

The survey analyzes the communication requirements of distributed multimedia applications. To understand the ongoing evolution of networking, we must consider how current and new networking technologies support these requirements. In addition to the functional aspects, the survey investigates how the new technologies blend with existing infrastructures. It concludes with a brief discussion of the higher layer multimedia communication issues     

Enabling Generic Wireless Coexistence Through Technology-Agnostic Dynamic Spectrum Access

Every year that passes, new standardized and proprietary wireless communication technologies are introduced in the market that seeks to find its place within the already highly congested spectrum. Regulation bodies all around the globe are struggling to keep up with the continuously increasing demand for new bands to offer to specific technologies, some of them requiring by design an exclusive frequency band in order to operate efficiently. Even wireless bands offered for public or scientific usage like the ISM bands are becoming the natural habitat of multiple wireless technologies that seek to use or “abuse” them in order to provide even more bandwidth to their offered applications. Wireless research teams targeting heterogeneous wireless communication coexistence are developing techniques for enabling one-to-one coexistence between various wireless technologies. Can such an exhaustive approach be the solution for N wireless technologies that wish to operate in the same band? We believe that a one-to-one approach is inefficient and cannot lead to a generic coexistence paradigm, applicable to every existing or new wireless communication technology that will arise in the future. Can another approach provide a more generic solution in terms of frequency reuse and coexistence compared to the one-dimensional frequency separation approach commonly used in commercial deployments today. Can such a generic approach provide a simple and easily adoptable coexistence model for existing technologies? In this paper we present a new generic medium sharing model that solves the huge coexistence problems observed today in a simple and efficient way. Our approach is technology-agnostic and compatible with all existing wireless communication technologies and also has the capability to support emerging ones with minimum overhead.

     

Cultures, computers, and communication: evaluating models ofinternational online production

The spread of online communication technologies has brought with it new perspectives on international communication. Now, with the Internet, email, and application service providers, interacting with coworkers an entire hemisphere away can be almost as easy as interacting with coworkers in the same building. As a result of the "leveling of distance" created by online communication technologies, new kinds of international business models have been proposed; models that attempt to reduce production costs while maintaining product quality. However, some of these models fail to account for cultural differences that could cause communication problems in international online exchanges. The article examines how one particular international online production model, production facilities that never close, could encounter cultural communication problems if participants involved were not aware of certain cultural communication expectations, specifically those related to the cultural concept of "face"     

通信传输技术九十年代新动向

本文概述九十年代通信技术的新动向,主要讲卫星通信、移动通信、光纤通信以及公用和专用通信网传输技术的发展趋势。文中着重指出各种有前途的新技术,包括卫星通信的星上点波束天线,小孔径天线地面终端,与ISDN兼容;数字移动通信的蜂窝微区(micro-cell),个人便携通信的无线接入交换网;光纤通信的掺铒光纤放大器,DFB调谐单频激光管,多量子阱(MQW),光电子集成,外差检测,密集FDM多路载波通信;以及公用通信网数字化、综合化、宽带化组成B-ISDN,同步光纤网,同步数字体系,异步转移方式;专用通信网的局域网(LAN和MAN),光纤分布数据接口,分隙环(slotted ring),分布排队双总线等新建议。     

A Survey of IoT Key Enabling and Future Technologies: 5G,Mobile IoT,Sematic Web and Applications

The Internet of Things (IoT) is the communications paradigm that can provide the potential of ultimate communication. The IoT paradigm describes communication not only human to human (H2H) but also machine to machine (M2M) without the need of human interference. In this paper, we examine, review and present the current IoT technologies starting from the physical layer to the application and data layer. Additionally, we focus on future IoT key enabling technologies like the new fifth generation (5G) networks and Semantic Web. Finally, we present main IoT application domains like smart cities, transportation, logistics, and healthcare.     

移动环境中数据分析与挖掘新技术的研究

数据分析与挖掘技术是构建经营分析系统的关键技术,本文主要介绍了三种新的数据分析与挖掘技术:数据流技术、移动对象技术和基于位置服务的技术,数据流技术能够解决经营分析系统在实时处理动态产生的海量数据上的不足;移动对象技术可以使得经营分析系统对移动用户的时空数据加以利用,从而提供多种新业务及更好的决策支持;而基于位置服务技术将使得经营分析系统对开展定位相关业务提供决策支持.     

系统模块(SiP)和三维封装(3D)在移动通讯中的应用

电子封装业界正遭受着前所未有的来自手机和其他移动通讯终端设备挑战。在这一领域里,IC封装的关键是尺寸微型化,缩减成本和市场时机。这一挑战的背后隐含着手机技术发展的两大趋势:系统模块化和日益增长的复杂性及功能。越来越多的功能正在被组合到手机上即PDA、MP3、照相机、互联网等等。功能的增加需要靠模块化来实现,而模块化又促进了更多功能的组合。同时,模块化使得移动通讯终端设备得以微型化、降低成本和缩短设计周期。业界越来越多地感受到整体射频模块和通讯模块解决方案的必要性。这些整体模块把手机设计师从电路设计的细节中解脱出来,从而能专著于高层的手机应用和系统的设计。为了满足上诉移动通讯产品的苛刻要求,大量的新兴电子封装技术和封装产品应运而生。最引人注目的例子在于对系统模块穴SiP雪和三维穴3D雪封装的重点资金和技术投入。这两项先进封装技术有着各自不同的特征和应用范围。总体介绍先进封装技术在移动通讯中的应用,重点讨论电子封装材料和工艺所面临的挑战和最新发展趋势。对移动通讯带来的新一轮集成化及其所产生的潜在供应链问题也做了适当的讨论。     

Affective intelligence — the missing link?

Scientists have recently learned of many surprosing roles played by human emotion — especially in cognitive processes such as perception, decision making, memory, judgment, and more. Moreover, psychologists have redefined human intelligence to include emotional intelligence, especially the ability to accurately recognise and express affective information. This paper suggests that affective intelligence, the communication and management of affective information in human/computer interaction, is a key link that is missing in telepresence environments and other technologies that mediate human/human communication. This paper discusses new research in affective intelligence, and how it can impact upon and enhance the communication process, allowing the delivery of the more natural interaction that is critical for a true sense of telepresence.     

Analytical models for communication links in emergency management simulation

Emergency response involves the management of several different types of critical infrastructures and resources. Because of the interdependent nature of these systems, it is often very difficult for human decision makers to determine what the second‐ or third‐order effects of their decisions or actions might be. This has resulted in the development of several simulation tools that could be used to evaluate decisions or behaviours and better inform decision makers about the potential impacts of their decisions. One area that remains underdeveloped in this regard is the engagement of communication technologies by human agents, which has the potential to seriously affect delay times in response coordination. Given the size and complexity of simulating the interconnection of heterogeneous systems, developing reduced‐order simulation models has become important to maintain reasonable computation times. This paper describes the derivation of the distribution of the total connection time for a communication link where multiple technologies are engaged. Results show that communication link simulation times, which are among the most time‐consuming simulation routines can be significantly reduced by using the closed‐form distributions.     

基于大气激光通信的高精度时间传送

提出了一种全新的时间信号的传送方法，即通过大气激光信道传送高精度时间信号。它可以用于解决中短距离范围内高精度时间同步的问题。相对于光纤、微波等其它方法，它具有较低的成本和较好的灵活性。     

Security for Grids

Securing a Grid environment presents a distinctive set of challenges. This work groups the activities that need to be secured into four categories: naming and authentication; secure communication; trust, policy, and authorization; and enforcement of access control. It examines the current state of the art in securing these activities and introduces new technologies that promise to meet the security requirements of Grids more completely.     

On the implant communication and MAC protocols for WBAN

Recent advances in micro‐electro‐mechanical systems, wireless communication, low‐power intelligent sensors, and semiconductor technologies have allowed the realization of a wireless body area network (WBAN). A WBAN provides unobtrusive health monitoring for a long period of time with real‐time updates to the physician. It is widely used for ubiquitous health care, entertainment, and military applications. The implantable and wearable medical devices have several critical requirements such as power consumption, data rate, size, and low‐power medium access control (MAC) protocols. This article consists of two parts: body implant communication, which is concerned with the communication to and from a human body using radio frequency (RF) technology, and WBAN MAC protocols, which presents several low‐power MAC protocols for a WBAN with useful guidelines including a case study of IEEE 802.15.4, PB‐TDMA, and SMAC protocols. In body implant communication, the in‐body RF performance is affected considerably by the implant's depth and different polarization combinations inside the human body as well as by the muscle and fat. We observe best performance at a depth of 3 to 5 cm and not close to the human skin. Furthermore, the study of low‐power MAC protocols highlights the most important aspects of developing a novel low‐power and reliable MAC protocol for a WBAN. Copyright © 2010 John Wiley & Sons, Ltd.     

5G移动网络绿色通信的相关关键技术

5G移动网络绿色通信技术相对于4G技术来说,在网络速度、网络延时和网络容量上进行了不断的提升。随着我国智能化的设备不断发展,5G移动网络绿色通信技术所面向了全社会的网络。由此可以预见,在未来人们的数据传输将变得更加高速率和高性能。本文在研究的过程中,主要结合第5代移动通信系统的具体建设和关键技术,分析当前我国第5代移动通信系统能耗问题,同时对于5G绿色通信技术的关键问题进行必要的分析。     

Les deux dimensions des usages innovants des nouvelles technologies des télécommunications dans une grande entreprise

First of all are set the basis for an overall problematic on feeling how important the new communication technologies should be to business strategy in large companies. Then the adaptation to cultural logic is discussed and the innovative usage of new communication technologies as implemented in a given company are widely clarified. Especially the solution to ambivalent attitude towards new communication technologies is given when moving to innovation in some fields and by total lack of creativity in others. The cultural system as responsible for such kind of adaptation relies on a certain management logic intricately bound with economic technical and personnal promotion logics. Finally, the paper shows that changes in technology may contribute well to company development, the proper structure being already at hand, provided their cultural behavior consents to it.