MIRAI Architecture for Heterogeneous Network

One of the keywords that describe next-generation wireless communications is "seamless." As part of the e-Japan Plan promoted by the Japanese Government, the Multimedia Integrated Network by Radio Access Innovation project has as its goal the development of new technologies to enable seamless integration of various wireless access systems for practical use by 2005. This article describes a heterogeneous network architecture including a common tool, a common platform, and a common access. In particular, software-defined radio technologies are used to develop a multiservice user terminal to access different wireless networks. The common platform for various wireless networks is based on a wireless-supporting IPv6 network. A basic access network, separated from other wireless access networks, is used as a means for wireless system discovery, signaling, and paging. A proof-of-concept experimental demonstration system is available

Delay Tolerant Networking over the Metropolitan Public Transportation

We discuss MDTN: a delay tolerant application platform built on top of the Public Transportation System (PTS) and able to provide service access while exploiting opportunistic connectivity. Our solution adopts a carrier-based approach where buses act as data collectors for user requests requiring Internet access. Simulations based on real maps and PTS routes with state-of-the-art routing protocols demonstrate that MDTN represents a viable solution for elastic nonreal-time service delivery. Nevertheless, performance indexes of the considered routing policies show that there is no golden rule for optimal performance and a tailored routing strategy is required for each specific case

IPv6 Network Mobility

Network Authentication, Authorization, and Accounting has been used since before the days of the Internet as we know it today. Authentication asks the question, “Who or what are you?” Authorization asks, “What are you allowed to do?” And fi nally, accounting wants to know, “What did you do?” These fundamental security building blocks are being used in expanded ways today. The fi rst part of this two-part series focused on the overall concepts of AAA, the elements involved in AAA communications, and highlevel approaches to achieving specifi c AAA goals. It was published in IPJ Volume 10, No. 1[0]. This second part of the series discusses the protocols involved, specifi c applications of AAA, and considerations for the future of AAA

Dynamic cities and creative clusters

The author focuses on how urban policies and the clustering of creative industries has influenced urban outcomes. The set of creative industries include those with output protectable under some form of intellectual property law. More specifically, this sub-sector encompasses software, multimedia, video games, industrial design, fashion, publishing, and research and development. The cities that form the basis for the empirical investigations are those where policy-induced transitions have been most evident, including Boston; San Francisco; San Diego; Seattle; Austin; Washington, D.C.; Dublin (Ireland); Hong Kong (China); and Bangalore (India). The key research questions are: 1) What types of cities are creative? 2) What locational factors are essential? 3) What are the common urban policy initiatives used by creative cities? The author explores the importance of the external environment for innovation and places it in the larger context of national innovation systems. Based on a study of development in Boston and San Diego, he isolates the factors and policies that have contributed to the local clustering of particular creative industries. In both cities, universities have played a major role in catalyzing the local economy by generating cutting-edge research findings, proactively collaborating with industries, and supplying the needed human capital. In addition, these two cities benefited from the existence of anchor firms and active industry associations that promoted fruitful university-industry links. Many cities in East Asia are aspiring to become the creative hubs of the region. But their investments tend to be heavily biased toward infrastructure provision. Although this is necessary, the heavy emphasis on hardware can lead to underinvestment in developing the talents and skills needed for the emergence of creative industries in these cities.Public Health Promotion,ICT Policy and Strategies,Health Monitoring&Evaluation,Decentralization,Agricultural Knowledge&Information Systems,ICT Policy and Strategies,Health Monitoring&Evaluation,Agricultural Knowledge&Information Systems,Educational Technology and Distance Education,Agricultural Research

Multicast Mobility in Mobile IP Version 6 (MIPv6) : Problem Statement and Brief Survey

Publisher PD

The role of cities in cohesion policy 2014-2020

Urban regions are an important factor in regional development. During the 2007-2013 programming period, the main input provided by cities and urban areas was at project level. For the 2014-2020 programming period, Cohesion policy enhances the role of urban areas. Nevertheless, in practice the role of cities still seems similar in scale. As the programming phase is almost completed, there is now limited scope for further influence on the design of the new programmes. The next opportunity to involve cities will be as part of partnerships during the programming perio