Revisiting Wireless Internet Connectivity: 5G vs Wi-Fi 6

In recent years, significant attention has been directed toward the fifth generation of wireless broadband connectivity known as ‘5G’, currently being deployed by Mobile Network Operators. Surprisingly, there has been considerably less attention paid to ‘Wi-Fi 6’, the new IEEE 802.1ax standard in the family of Wireless Local Area Network technologies with features targeting private, edge-networks. This paper revisits the suitability of cellular and Wi-Fi in delivering high-speed wireless Internet connectivity. Both technologies aspire to deliver significantly enhanced performance, enabling each to deliver much faster wireless broadband connectivity, and provide further support for the Internet of Things and Machine-to-Machine communications, positioning the two technologies as technical substitutes in many usage scenarios. We conclude that both are likely to play important roles in the future, and simultaneously serve as competitors and complements. We anticipate that 5G will remain the preferred technology for wide-area coverage, while Wi-Fi 6 will remain the preferred technology for indoor use, thanks to its much lower deployment costs. However, the traditional boundaries that differentiated earlier generations of cellular and Wi-Fi are blurring. Proponents of one technology may argue for the benefits of their chosen technology displacing the other, requesting regulatory policies that would serve to tilt the marketplace in their favour. We believe such efforts need to be resisted, and that both technologies have important roles to play in the marketplace, based on the needs of heterogeneous use cases. Both technologies should contribute to achieving the goal of providing affordable, reliable, and ubiquitously available high-capacity wireless broadband connectivity.     

VoIP deregulation in South Africa: Implications for underserviced areas

Several statutory restrictions have recently been lifted on the use of Voice over Internet Protocol (VoIP) in South Africa. Previously, VoIP could only be utilised by the incumbent telecommunications operator, Telkom, the Second National Operator (SNO) and under serviced area licensees (USALs). This means new opportunities and cost savings for both network service providers and consumers. However, in rural and remote regions, further liberalisation is required so that service providers can take advantage of wireless technologies to provide connectivity in these areas. This paper discusses the legislative environment in South Africa and around the world with respect to VoIP and Wireless Fidelity (WiFi). In addition, examples are provided of how these technologies have been combined to provide last mile solutions around the world and particularly in South Africa. The paper concludes that further liberalisation in the telecommunications environment in South Africa is required if the goal of providing affordable access in rural areas is to be attained. Specifically, it is recommended that wireless technologies be deregulated since the combination of VoIP and WiFi may benefit rural areas. Also, the paper finds that USALs may not be the right model for underserviced areas in South Africa. Lastly, it is apparent that applications drive development and dictate which technologies are relevant for rural areas.     

Strategic choice and broadband divergence in the transition to next generation networks: Evidence from Canada and the U.S.

This article investigates how infrastructure competition among broadband network infrastructure operators in Canada and the U.S. has influenced their incentives to increase fixed broadband connection speeds and invest in next generation fiber-to-the-premises (FTTP) technologies. The evolution of measured broadband speeds since the late 2000s documents growing differences in the incentives of dominant broadband operators to respond to demand for higher speed connectivity by increasing connectivity speeds they deliver to their customers. Dominant network operators in Canada have shown relatively stronger incentives than their counterparts in the U.S. to invest in and increase the capacity of legacy platforms. In the U.S. FTTP deployment incentives have been somewhat stronger, but network operators have been more reluctant to upgrade legacy technologies to deliver higher speeds. Diversity of strategic choices by large operators helps explain increasing regional and local broadband infrastructure gaps within the two countries. A high dividend payout financial strategy and increasing vertical integration appear to enhance the potential for overinvestment and inefficient duplication in legacy platforms by competing infrastructure providers.     

Socio-spatial patterns of the national broadband network revealed: Lessons from greater Sydney,Melbourne, and Brisbane

The National Broadband Network (NBN) is the largest public infrastructure project in the history of Australia. The goal of the NBN is to provide Australians with broadband internet access by using a mix of technologies, ranging from fibre and hybrid fibre-coaxial to fixed wireless and satellite platforms. Although the NBN is a public project, one of the more vexing aspects of its evolution is its lack of data transparency. There is virtually no information on platform use or footprint distribution throughout the country. Not only does this drastically limit evidence-based telecommunications policy analysis, it also limits the ability to evaluate equity in the spatial distribution of broadband connectivity and infrastructure quality. The purpose of this paper is to uncover the geographic presence of the various NBN technologies using data mining techniques and census-based socio-spatial data (SEIFA). The results portray the complexity of the NBN footprint across three metropolitan regions of Sydney, Melbourne, and Brisbane – with a focus on how the mixed-technology platform adopted divides major Australian cities.     

The Internet and income inequality: Socio-economic challenges in a hyperconnected society

Information and communication technologies (ICTs) influence income distribution directly and indirectly. A diverse pattern of decreases and increases in income inequality has emerged in parallel with increasing fixed and mobile connectivity. Building on earlier research, this paper develops a socio-technical model to examine the contribution of hyperconnectivity to these outcomes. ICTs rarely are a single cause but interact with other technological, economic, and political forces to shape the extent of income inequality. Depending on the constellation of these factors, income inequality may decrease or increase. Public policy may be able to ameliorate undesirable outcomes although effective programs will typically require initiatives that go beyond traditional measures designed to reduce digital divides.     

Economic growth and broadband access: The European urban-rural digital divide

This paper estimates the regional effects of high-speed broadband coverage on economic growth in a panel of 1348 regions across all European Union Member States between 2011 and 2018. We distinguish between different connectivity speed levels by aggregating the available regional data across all existing broadband technologies, and investigate how regional differences in the contribution of broadband coverage to real economic growth can quantitatively explain the persistence of the European urban-rural digital divide. In order to make our results robust to endogeneity and disaggregated data availability issues, we employ a bootstrap-based bias correction for the dynamic fixed effects estimator. We find that expansions in the provision of lower-speed broadband access accelerated annual per capita growth in both urban and rural regions through diminishing returns to scale, but that the effects were weaker in those regions characterized by larger ruralization. High-speed broadband coverage, on the contrary, could only be significantly related to rural economic growth and had no impact within their urban counterparts. We find evidence that the costs of these high-speed rural connectivity expansions had not yet been offset, but that they exhibit increasing returns to scale with cut-off levels nearing full coverage. These results indicate that the high-speed digital expansion of rural Europe is a potential gamechanger for further rural development policies through its role as a general-purpose infrastructure, and consequently argue in favour of increased efforts to close the urban-rural digital gap.     

New Information Technology and the Knowledge-Based Economy. The Italian Evidence

This work analyses the outcome of the interaction between: 1) the diffusion of new information technologies; 2) their effects on the tradability, divisibility and transportability of information; 3) the growing role of business service industries in the introduction of new technologies; 4) the interaction between receptivity and connectivity of learning agents in the generation of localized technological change based upon both tacit and generic knowledge, and 5) the parallel increase in total factor productivity. The empirical results provide some support, with respect to the Italian economy, to two hypotheses: 1) The co-evolution of usage of business and communication services. Our empirical analysis has shown the strong correlation between the levels and rates of growth in the use of communication and business services. 2) The productivity enhancing effects of the co-evolution in the use of business and communication.     

Developing a coevolutionary account of innovation ecosystems

Whilst research in innovation ecosystems has focused on the connectivity, interdependence, and coevolution of actors, technologies, and institutions, there has been a gap in the study of these relationships between actors, with little explanation given on how mutually interdependent parties adapt. In this paper, we draw further on the ecological metaphor to present a view of innovation ecosystems as complex adaptive systems, where patterns of change emerge from microlevel coevolutionary interactions between actors. Drawing on this view, we explore related implications for our understanding of ecosystem boundaries, coevolutionary rules of interaction, and how ecosystems are energized through innovation. Specifically, we contribute to the literature by developing a novel account of innovation ecosystems where actors are bound together through changing modes of coevolution. Drawing on this account, we explore key theoretical and practical implications for our understanding of ecosystem actors, rules of interaction, and the wider innovation ecosystem. We conclude that innovation both maintains and drives change within the innovation ecosystem, by altering the microlevel rules of interaction and coevolutionary relationships between actors.     

The Co-Diffusion of Complementary Innovations: Supermarket Scanners and UPC Symbols

Co-diffusion is the positive interaction between the demands for complementary innovations that have separate adoption tracks. This interaction is of growing importance to business strategy because a firm can facilitate the diffusion of an innovation by supporting and participating in the development and commercialization of related complementary technologies. This phenomenon is of special importance where connectivity among products is central to end-user value. Louis P. Bucklin and Sanjit Sengupta report results of their empirical investigation of the co-diffusion of laser scanners in supermarkets and Universal Product Code (UPC) symbols printed on the packages of stocked items. Their results show asymmetric two-way co-diffusion effects between these innovations. Co-diffusion effects are found to be stronger than innovation effects. Finally, the analysis reveals differential co-diffusion effects across major market segments.     

Conceptualizing digital and physical connectivity: The position of European cities in Internet backbone and air traffic flows

‘Digital’ telecommunication flows and ‘physical’ corporeal flows provide researchers with comprehensive indicators of the economic interactions between cities. However, previous research drawing on telecommunication-based measures of inter-urban connectivity has been hampered by inadequate conceptualizations and data. This paper draws on this observation to devise a new approach for measuring inter-urban connectivity based on a city’s insertion in Internet backbone networks. The straightforward example of air transport flows is thereby used to outline this approach. To investigate telecommunication and air passenger flows, use is made of European statistics on Internet eXchange Points and the MIDT airline database respectively. The approach is illustrated through a systematic comparison of the position of European cities in both types of networks. It is found that European cities assume largely similar hierarchical levels in terms of digital and physical information flows, albeit that the digital connectivity of centrally located European cities is often somewhat higher than that of peripheral cities with a similar levels of physical connectivity.     

Digital knowledge generation and the appropriability trade-off

The introduction of information and communication technologies (ICT) has changed in depth the organization of the generation of knowledge reducing significantly knowledge absorption cost and improving knowledge interactions. The digital generation of knowledge relies on the systematic access and use of the stock of quasi-public knowledge. ICT enable to reconsider the knowledge appropriability trade-off as it helps to better appreciate the positive role of knowledge spillovers in the recombinant generation of new knowledge, next to the well-known negative effects of the limited appropriability of knowledge on revenues and hence incentives to innovate. This new analytical framework calls for an augmented role of telecommunications policy that should take into account the positive effects of knowledge connectivity on the generation of knowledge.     

Facilitating multimodal logistics and enabling information systems connectivity through wireless vehicular networks

The adoption of information and communication technology (ICT) has made it possible to experience high levels of visibility, control and connectivity across the entire supply chain. However, in road transport logistics, wireless ICT applications like cellular networks, Wi-Fi, UMTS, 4G and WiMax have not entirely solved reliability and connectivity problems due to difficulties associated with limited range, scalability and security. This paper examines the feasibility of using a vehicular network technology, dedicated short range communication (DSRC), in a multimodal logistics environment as means of providing enhanced visibility and connectivity using a secure access architecture. The secure access architecture is necessary to provide a high degree of security to the detailed visibility involving road haulage feeding port operations using a centralised port service.     

Weaving the Western Web: explaining differences in Internet connectivity among OECD countries

Despite the Internet's increasing importance, there is little social scientific work that addresses its diffusion. Our knowledge is especially limited with respect to the conditions that encourage its spread across nations. This paper takes a first step in explaining the differences in Internet connectivity among OECD countries. After examining the impact of economic indicators, human capital, institutional legal environment, and existing technological infrastructure, the empirical analyses show that economic wealth and telecommunications policy are the most salient predictors of a nation's Internet connectivity.     

彩色电子纸研究最新进展

Amazon Kindle的出现在全球掀起了电子纸的热潮,黑白电子纸显示技术正在不断完善。随着电子纸市场需求的增加,研制新型彩色电子纸显示技术成为众多科研人员关注的焦点。本文介绍了日本千叶大学北村研究室在彩色电子纸显示技术研发上所取得的最新进展,针对基于电泳显示和色粉移动方式的彩色电子纸技术做了详细说明。     

Digital divide or digital opportunity in the Mississippi Delta region of the US

This study analyzes the interdependence of telecommunications manufacturing, services, and user industries in the Mississippi Delta region of the US to understand the social and economic prospects of poorer rural areas of the US as advanced technologies rapidly proliferate. An underlying assumption is that telecommunications industries should not be viewed only by the employment they directly support; they should also be analyzed in terms of their linkages to other industries and how those linkages influence the competitiveness and growth prospects of businesses and public institutions in the region by building a capable community of technology users. The absence of leading telecom manufacturing and service firms in rural Delta counties together with low levels of connectivity suggest that digital divide problems are very real for the region. The central economic development challenge should be to ensure that rural businesses, government, health care, education, and non-profit institutions gain access to an advanced telecommunications infrastructure and that they develop the capacity to leverage this access to enhance their performance and expand their reach.     

Can one laptop per child reduce digital inequalities? ICT household access patterns under Plan Ceibal

The study of information and communications technology (ICT) adoption signals that diffusion processes within highly unequal societies produce stratification in the access to digital technologies and thus, maintain or even increase previous socioeconomic disparities. While technological utopians believed that One Laptop Per Child (OLPC)-like programs could reduce societal inequalities, the economics literature evaluating these initiatives has mostly focused on student's human capital. Results suggest no impact, even for successful programs such as Uruguay's own OLPC-inspired Plan Ceibal. In this paper, we use an event-study approach to difference-indifferences to identify the impact of Plan Ceibal on the household adoption of technological goods across income quintiles. Our results show that Plan Ceibal helped to bridge domestic digital disparities in terms of access to PC and favored the uptake of internet services. We discuss the potential mechanisms behind these results. Regarding household PC access, even though Plan Ceibal was conceived as a universal program targeting primary-level students attending public schools, both infantilization of poverty and a dual-system educational stratification may explain why this initiative had a heterogenous impact across different income groups. Regarding household connectivity, Plan Ceibal reduced the cost of the bundle required to consume internet services at the time of the study, improving affordability and access among households with beneficiaries of the program.     

The commerciaIization of stagnant technologies

Abstract
This paper focusses on technologies which have failed to reach the marketplace for reasons which are connected more with the organization in which they were developed than with the technology itself. They are referred to as stagnant technologies.
Such technologies can clearly be exploited via joint ventures; however there can be problems of finding a suitable partner and managing the partnership when one has been found. To overcome such problems a role for a third party is suggested which has been called the catalyst firm. Such a firm can be involved in identifying stagnant technologies, locating a suitable partner, and assisting in the management of the partnership through to commercialization.
This approach is central to the activities of Aprotec, a Manchester-based company specializing in the development and commercialization of new technologies, which plays the role of the catalyst firm. Experience to date is described in the paper, and a case study is used to show how the approach has been successfully applied in practice.     

关于数字图书馆存储建设的探讨

从分析数字图书馆的存储需求出发,指出传统的存储方式所存在的问题,针对目前存储技术的现状,探讨了网络存储技术的特点,并对2种主流网络存储技术进行了比较,着重介绍了SAN结构下的数据安全,最后提出了网络存储在图书馆数字化建设上的应用实例。     

Toward an Ethics of Technologies as Prostheses

This paper discusses critically the historical bond that exists between contemporary culture and the instrumental definition of technology, according to which technology is a means, a complex of instruments that serve particular human ends. It argues and illustrates that technologies not only serve human ends but also have ends in themselves. Ancient and modern technologies have always had intrinsic ends, they are highly effective achieving those ends and these have ethical importance. As cultural entities with intrinsic ends, technologies are not necessarily congruous with our ends and have generally transformed our ways of life in very unconscious ways.I propose an ethics of technologies based on the idea that all technologies have a tendency to become prostheses. As part of our being, the ends of technologies become our ends. In the frenzy of instrumentalism and presumed progress, contemporary technologies as prostheses transform the experience of what is far at the expense of what is near. Our ethics opens ways of raising questions with respect to these structural transformations and the communities we might want to envision and consider for humans who may hopefully be capable and willing to choose their technologies in more conscious ways.