Invited Abstract: A Simulation Package for Energy Consumption of Content Delivery Networks (CDNs)

Content Delivery Networks (CDNs) are becoming an integral part of the future generation Internet. Traditionally, these networks have been designed with the goals of traffic offload and the improvement of users' quality of experience (QoE), but the energy consumption is also becoming an indispensable design factor for CDNs to be a sustainable solution. To study and improve the CDN architectures using this new design metric, we are planning to develop a generic and flexible simulation package in OMNet++. This package is aimed to render a holistic view about the CDN energy consumption behaviour by incorporating the state-of-the-art energy consumption models proposed for the individual elements of CDNs (e.g. servers, routers, wired and wireless links, wireless devices, etc.) and for the various Internet contents (web pages, files, streaming video, etc.).Comment: Published in: A. F\"orster, C. Minkenberg, G. R. Herrera, M. Kirsche (Eds.), Proc. of the 2nd OMNeT++ Community Summit, IBM Research - Zurich, Switzerland, September 3-4, 2015, arXiv:1509.03284, 201

Approaches for Future Internet architecture design and Quality of Experience (QoE) Control

Researching a Future Internet capable of overcoming the current Internet limitations is a strategic investment. In this respect, this paper presents some concepts that can contribute to provide some guidelines to overcome the above-mentioned limitations. In the authors' vision, a key Future Internet target is to allow applications to transparently, efficiently and flexibly exploit the available network resources with the aim to match the users' expectations. Such expectations could be expressed in terms of a properly defined Quality of Experience (QoE). In this respect, this paper provides some approaches for coping with the QoE provision problem

Boston Unplugged: Mapping a Wireless Future

Reviews a variety of models that would allow Boston to provide free or low-cost high-speed Internet access citywide. Outlines the benefits and mechanics of citywide WiFi, and lists factors to consider in designing, developing, and deploying a system

World Class Supply Chain 2019: Next Generation Ideas

Next Generation Ideas, being the theme for the Fourth Annual World Class Supply Chain Summit, reflected summit’s focus on understanding what is becoming and what will continue to be of increasingly of high priority for current and future supply chain professionals. The summit, which was held on May 8th, 2019 in Milton, Ontario, brought together invited executives, scholars, and students to present and carefully examine a range of emerging ideas that are worthy of the supply chain community’s interest. The diversity of such ideas (e.g., new technologies, geopolitical developments, and the role of supply chain analytics) necessitated a diverse range of perspectives for structuring the summit deliberations. This was done through a summit program comprising three presentations to feature the following perspectives: Perspectives of a vastly experienced industry executive perspective who has amassed an extensive body of material on ecological considerations in supply chains Perspectives of an economist with evidence-based understanding of how decisions by national governments impact firms with both domestic and transnational supply chains Perspectives of a supply chain scholar whose research projects are strongly motivated by how companies have had (and will have) to rethink their distribution networks From the formal presentations and the question and answer component for each presentation, the essence of the insights could be summarized by this notion: While firms must still exemplify traditional supply chain fundamentals (trusted partners, robust IT infrastructure, etc.), they face the additional and an increasingly pressing imperative of needing the agility to be responsive to changes, especially from customers and competitors. Arguably, this is not an original statement because one can make a convincing case that dynamic change has always been a feature of the business landscape. Rather than originality, the statement is meant to underscore that, at this time in the development of the supply chain field, practitioners seem to be experiencing a very distinct level of bewilderment about the array of changes to be contemplated. The summit not only brought that bewilderment to the fore, it also: facilitated discussion of the opportunities resulting from the changes presented real-world examples of innovative and entrepreneurial responses to the changes addressed the interests and concerns of students - the next generation of supply chain professionals This white paper reports on (1) the substantive specifics of those elements of the summit and (2) issues requiring further study in order to be understood more clearly

Access to information in digital libraries : users and digital divide

Recognising the importance of information and knowledge in all spheres of human life, the recently held World Summit on Information Society came up with a plan of action for building a global information society. The goal of the world information society initiatives is the same as that of digital library research and development - to make information and knowledge accessibleto everyone in the world. Digital libraries have progressed very rapidly over the past ten or soyears. This paper addresses the two most important aspects of the information society - information users and digital divide. Findings of some large-scale studies on human information behaviour on the web and digital libraries have been discussed. The major findings of a study on access to electronic resources by university students are the presented. Proposed that a one-stop window approach with a task-based information organisation and access system may be the way forward

Between reason of state and reason of market: the developments of internet governance in historical perspective

“No sovereignty, no elected government, no authority, no borders”. It was exactly twenty years ago, John Perry Barlow proclaimed his Declaration of the Independence of Cyberspace. And those were his keywords. Today, we can say that the development of Internet governance as a global policy arena is the answer to the questions that Barlow believed irrelevant to the proper development of cyberspace. If founding myths about an ungovernable, borderless, and intangible Internet have been demolished, what power relations have emerged in the Internet governance arena? What are the ideas –or the normative values– that sustain and legitimize the political role of governmental and nongovernmental actors? And, finally, is the multi-stakeholder model capable of grasping the real conflicts over political power, or is it part of those conflicts, a narrative supporting specific interests and coalitions? The main aim of this article is to consider these issues by analysing the developments of political conflicts over Internet governance, from the IAHC to WSIS, until recent processes such as the WCIT and NetMundial.“Ninguna soberanía, ningún gobierno electivo, ninguna autoridad, ningún confín”. Hace veinte años, John Perry Barlow proclamó su Declaración de Independencia del Ciberespacio. Y estas eran las palabras clave. Hoy día, podemos afirmar que el desarrollo del Internet Governance como ámbito de policy global responde a las preguntas que Barlow consideraba irrelevantes precisamente por lo que al desarrollo del ciberespacio se refería. Una vez que los mitos fundadores de un Internet sin confines, inmaterial y falto de estructuras de gobierno han sido derrotados, ¿cuáles son las relaciones de poder que han emergido en el campo del dominio del Internet? ¿Cuáles son las ideas –o los valores normativos– que sostienen y legitiman el papel político de los actores gubernamentales y no gubernamentales? Además, ¿el modelo multi-stakeholder sabe distinguir los conflictos de poder reales, o él mismo parte de esos conflictos, como un discurso de apoyo de los intereses y de las coaliciones en juego? El objetivo principal del artículo es analizar esos cuestionamientos a través del análisis del desarrollo de los conflictos políticos respecto de la gobernanza de la red: del IAHC al WSIS, hasta llegar a los procesos más recientes, como el WCIT y el NetMundial

Attack-Surface Metrics, OSSTMM and Common Criteria Based Approach to “Composable Security” in Complex Systems

In recent studies on Complex Systems and Systems-of-Systems theory, a huge effort has been put to cope with behavioral problems, i.e. the possibility of controlling a desired overall or end-to-end behavior by acting on the individual elements that constitute the system itself. This problem is particularly important in the “SMART” environments, where the huge number of devices, their significant computational capabilities as well as their tight interconnection produce a complex architecture for which it is difficult to predict (and control) a desired behavior; furthermore, if the scenario is allowed to dynamically evolve through the modification of both topology and subsystems composition, then the control problem becomes a real challenge. In this perspective, the purpose of this paper is to cope with a specific class of control problems in complex systems, the “composability of security functionalities”, recently introduced by the European Funded research through the pSHIELD and nSHIELD projects (ARTEMIS-JU programme). In a nutshell, the objective of this research is to define a control framework that, given a target security level for a specific application scenario, is able to i) discover the system elements, ii) quantify the security level of each element as well as its contribution to the security of the overall system, and iii) compute the control action to be applied on such elements to reach the security target. The main innovations proposed by the authors are: i) the definition of a comprehensive methodology to quantify the security of a generic system independently from the technology and the environment and ii) the integration of the derived metrics into a closed-loop scheme that allows real-time control of the system. The solution described in this work moves from the proof-of-concepts performed in the early phase of the pSHIELD research and enrich es it through an innovative metric with a sound foundation, able to potentially cope with any kind of pplication scenarios (railways, automotive, manufacturing, ...)

A European research roadmap for optimizing societal impact of big data on environment and energy efficiency

We present a roadmap to guide European research efforts towards a socially responsible big data economy that maximizes the positive impact of big data in environment and energy efficiency. The goal of the roadmap is to allow stakeholders and the big data community to identify and meet big data challenges, and to proceed with a shared understanding of the societal impact, positive and negative externalities, and concrete problems worth investigating. It builds upon a case study focused on the impact of big data practices in the context of Earth Observation that reveals both positive and negative effects in the areas of economy, society and ethics, legal frameworks and political issues. The roadmap identifies European technical and non-technical priorities in research and innovation to be addressed in the upcoming five years in order to deliver societal impact, develop skills and contribute to standardization.Comment: 6 pages, 2 figures, 1 tabl