Scalable control plane for intra-domain communication in software defined information centric networking

Recently there has been a new emerging trend in integrating Information Centric Networking (ICN) and Software Defined Networking (SDN) together in the future Internet research area. Software defined information centric networking (SD-ICN) may face more serious scalability problem in control plane compared with traditional SDN environment due to new features about in-network caching and content-based communication. In this paper, we propose a scalable area-based hierarchical architecture (SAHA) for intra-domain communication to address the control plane scalability problem in SD-ICN. The SAHA supports scalable awareness of network resources and content resources, as well as guarantees efficient interest matching and resource adaptation. Simulation experiments under OMNET++ show that the proposed SAHA can achieve outstanding scalability in resource awareness and content-based communication.     

The information and communication society: how people will live and work in the new millennium

This paper analyses information and communication technology (ICT) and its relation to work organizations, human communication, stress, allocation issues, knowledge transfer and global villages. An interdisciplinary research programme on 'Computer technology and work life' was initiated and led by the author at Stockholm University in 1974, followed by many programmes in Sweden in the field. A theoretical framework was developed including two theoretical models, one more general, the other where the concepts and their interrelationships were specified. The models were tested empirically in three large work organizations in Sweden, representing three main historical periods of computer technology. It was also used as a model in discussing what might be desirable goals in the information society. The present fourth period, the 'Network period', is characterized by a convergence of three main technologies: computer, telecommunication and media. ICT is used in almost every activity and is embedded in many things. The author proposes a superimposed theoretical model reflecting 'ICT and the psychosocial life environment', a revised model of her initial models. Finally, future research is discussed with reference to theoretical models revised, and conclusions address major psychosocial processes, psychosocial life environments and a call for synthesis.     

The information and communication society: how people will live and work in the new millennium

This paper analyses information and communication technology (ICT) and its relation to work organizations, human communication, stress, allocation issues, knowledge transfer and global villages. An interdisciplinary research programme on ‘Computer technology and work life’ was initiated and led by the author at Stockholm University in 1974, followed by many programmes in Sweden in the field. A theoretical framework was developed including two theoretical models, one more general, the other where the concepts and their interrelationships were specified. The models were tested empirically in three large work organizations in Sweden, representing three main historical periods of computer technology. It was also used as a model in discussing what might be desirable goals in the information society. The present fourth period, the ‘Network period’, is characterized by a convergence of three main technologies: computer, telecommunication and media. ICT is used in almost every activity and is embedded in many things. The author proposes a superimposed theoretical model reflecting ‘ICT and the psychosocial life environment’, a revised model of her initial models. Finally, future research is discussed with reference to theoretical models revised, and conclusions address major psychosocial processes, psychosocial life environments and a call for synthesis.     

The relevance of association networks for/in a sustainable information and communication society

This contribution deals with taking up the challenge of sustainable development through human centred systems which aim at the creation and repatriation of global quality in each society, and which are seen to operate as a whole, on a local, regional or even a planetary scale. The paper argues that, particularly in a field such as information, communication, environment, technological processes and innovations, which have structurally revolutionised first of all manufacturing but also education and daily living at the same time. However, producing new pathogenous structures require, by necessity, a political ecology in order to relate these fields to new figures of meditation/mediance and crossbreeding built up by associative networks. PRELUDE'S experience, as an international networking programme of scientists pursuing with other social factors objectives of codevelopments (in response to the failure of bad development in the North and in the South), and its contribution to the theme Global Perspective 2010 of the CE-FAST Programme suggest the actual relevance and, turning to the future, the decisive function of associative networks as a way of approaching more efficiently, because of their flexibility, complex, highly heterogeneous situations to be tackled in a systemic and global fashion. In complementing institutions and established companies these networks give their new performances and efficacity to institute, and so doing displace acquired balances, and increase their capacity to innovate.     

Cross-cultural deception in social networking sites and face-to-face communication

Deception research has been primarily studied from a Western perspective, so very little is known regarding how other cultures view deception. Cross-cultural deception research is important due to the escalation of cross-cultural communication. Therefore, this study proposes a framework for understanding the role Korean and American culture plays in deceptive behavior for both face-to-face (FTF) and computer-mediated communication (CMC). The goal of this paper is to test theoretical explanations about the role of culture in deception by the development of a set of hypotheses predicting the conditions under which deception is likely to emerge. A research strategy and construct measures to test the hypotheses are presented. Results from online questionnaires indicated Korean respondents exhibited greater collectivist values, lower levels of power distance, and higher levels of masculine values than Americans. Furthermore, deceptive behavior was greater for FTF communication than for CMC for both Korean and American respondents. In addition to a significant relationship between culture and deception, differences were found between espoused cultural values and deceptive behavior, regardless of national culture. These results indicate the need for future research to consider cultural differences when examining deceptive behavior.     

Privacy in the future information society

Our basic standpoint in the computer privacy issue is to set up its position and evaluate it in the context of all the development stages of an information society. Current issue of privacy will be discussed mainly in relation to the effectiveness of management control in Government and private enterprises. But as regards the future problem, this should be dealt in relation to social welfare, such as public medical care and education, and finally in relation to the individual's problem solving and opportunity development. When viewed in such a way, the characteristics of the privacy issue would be changed drastically as compared with the present one.     

Information society and information technology

To investigate the characteristics of a computer touchpad as a pointing device, 14 participants used their right hand to manipulate the touchpad on a laptop computer. They were required to move a cursor over different distances (7.5 cm, 15 cm) from a home location to targets of different diameters (8 mm, 16 mm), situated to the upper left, middle, or right of a computer screen. A kinematic analysis of movement onsets and cursor trajectories indicated the nature of inefficiencies of the touchpad compared with other devices, primarily excessive submovements. Upper leftward movements were poorer, which can be explained by asymmetries in the finger-wrist system. This result implies that screen accessibility can vary as a function of users' interaction with cursor controllers and that the default placements of key icons might need to vary as a consequence.     

A survey of communication/networking in Smart Grids

Smart Grid is designed to integrate advanced communication/networking technologies into electrical power grids to make them “smarter”. Current situation is that most of the blackouts and voltage sags could be prevented if we have better and faster communication devices and technologies for the electrical grid. In order to make the current electrical power grid a Smart Grid, the design and implementation of a new communication infrastructure for the grid are two important fields of research. However, Smart Grid projects have only been proposed in recent years and only a few proposals for forward-looking requirements and initial research work have been offered in this field. No any systematic reviews of communication/networking in Smart Grids have been conducted yet. Therefore, we conduct a systematic review of communication/networking technologies in Smart Grid in this paper, including communication/networking architecture, different communication technologies that would be employed into this architecture, quality of service (QoS), optimizing utilization of assets, control and management, etc.     

信息中心网络中缓存技术研究综述

因特网中日益增长的内容获取需求促使学术界提出了多种以信息为中心的未来网络架构。这类架构将以主机为中心的通信模式转变为以内容为中心。信息中心网络（ICN）最重要的特征之一是利用内置缓存减少用户获取内容的时延、节省网络带宽和缓解网络拥塞。与传统的内容分发网络（CDN）、对等网络（P2P）和Web缓存系统相比,ICN缓存系统呈现出一系列的新特征。分析了缓存新特征对ICN研究带来的挑战;从多方面重点阐述了ICN缓存的优化方法,详细分析对比了不同缓存策略;指出了未来研究方向并总结全文。     

Caching in information centric networking: A survey

Internet usage has drastically shifted from host-centric end-to-end communication to receiver-driven content retrieval. In order to adapt to this change, a handful of innovative information/content centric networking (ICN) architectures have recently been proposed. One common and important feature of these architectures is to leverage built-in network caches to improve the transmission efficiency of content dissemination. Compared with traditional Web Caching and CDN Caching, ICN Cache takes on several new characteristics: cache is transparent to applications, cache is ubiquitous, and content to be cached is more ine-grained. These distinguished features pose new challenges to ICN caching technologies. This paper presents a comprehensive survey of state-of-art techniques aiming to address these issues, with particular focus on reducing cache redundancy and improving the availability of cached content. As a new research area, this paper also points out several interesting yet challenging research directions in this subject.     

无线自组网语音通信终端设计

针对目前国内矿井下语音通信不够灵活或者通信系统成本过高的情况,设计了一种低功耗、低成本、使用灵活高效的手持式语音通信终端。通过采用ZigBee自组网技术灵活搭建通信网络,多跳延伸通信距离,并且针对ZigBee由于传输速率低的而不能很好传输语音的问题,本设计使用IMA-ADPCM算法进行语音压缩以保证高通话质量的前提下适应ZigBee的低传输速率特性。经试验证明,本语音通信终端功耗可低至0.63 W,在井下点对点通信距离可达到28.76 m,语音信号传输平均误码率仅为1.95%。     

Autoconfiguration for IP networking: enabling local communication

IP hosts and network infrastructure have historically been difficult to configure, but emerging networking protocols promise to enable hosts to establish IP networks without prior configuration or network services. Even very simple devices with few computing resources will be able to communicate via standard protocols wherever they are attached. Current IETF (Internet Engineering Task Force) standardization efforts, such as those in the Zeroconf Working Group, aim to make this form of networking simple and inexpensive. In this tutorial, I examine the background, current status and future prospects for zero-configuration networking     

The profession's role in the global information society

To avoid social exclusion and technical stagnation, we must keep knowledge flowing freely. Most people agree that computer science will play a significant role in the global information society. Computer engineers continually face professional exclusion because technology advances most swiftly in computer science.     

On the brink of the information society

This paper presents an expert opinion on the possible methods of developing information work for a more effective transition to an information society.     

信息中心网络内数据重传算法的优化

对于信息中心网络（ICN）中原始数据恢复机制的网络带宽利用率低下的问题,提出一种基于网络编码的实时数据重传（NC-RDR）算法。首先,根据网络的实时状态对网络中丢失的数据包进行统计;然后,将网络编码结合到信息中心网络中,对统计的丢失的数据包进行组合编码;最后,将编码后的数据包重传发送给接收端。对提出的方案进行分析,仿真结果表明,与基于网络编码的多播数据恢复（NC-MDR）算法相比,在传输带宽（平均传输次数）方面,降低了约30%,因此,在信息中心网络中,该算法能有效地减少网络重传次数,提高网络传输效率。     

International NGOs: networking,information flows and learning

International non-government organisations (INGOs) are increasingly regarded as important in their capacity to influence global policy on development matters such as poverty alleviation, sustainable development, and human rights. This has been possible through their simultaneous attachment to places and local cultures on the one hand, and their critical engagement with the global on the other. With recent advances in information and communication technologies, an increasingly connected INGO community is finding consideration scope for networking and information sharing at multiple levels.However, despite the strategic advantage of INGOs in terms of their multi-level reach, their contribution to date remains limited to small-scale success stories rather than affecting large-scale development. In this paper, we emphasise the importance for INGOs to learn from the field in their quest to influence wider policy-making and improve local accountability. We argue that as their role changes from operational work to international advocacy, INGOs will have to strengthen institutional structures and learning skills to achieve a greater developmental impact.