Satellite-enabled interactive education: scenarios and systems architectures

There are specific sectors of the economy that can benefit from satellite-based tele-education. Areas, such as maritime and agriculture, share common needs for both broadband connectivity at remote geographical areas that cannot otherwise be covered, and for innovative content for tele-education purposes. Furthermore, each area has special requirements with regard to the type of content to be delivered. In this paper we propose a set of architectural designs and case scenarios that will realise such interactive end-to-end education systems based on satellite communications. Services requirements in this setting are also identified and discussed

Dynamic virtual private network provisioning from multiple cloud infrastructure service providers

The Cloud infrastructure service providers currently provision basic virtualized computing resources as on demand and dynamic services but there is no common framework in existence that allows the seamless provisioning of even these basic services across multiple cloud service providers, although this is not due to any inherent incompatibility or proprietary nature of the foundation technologies on which these cloud platforms are built. We present a solution idea which aims to provide a dynamic and service oriented provisioning of secure virtual private networks on top of multiple cloud infrastructure service providers. This solution leverages the benefits of peer to peer overlay networks, i.e., the flexibility and scalability to handle the churn of nodes joining and leaving the VPNs and can adapt the topology of the VPN as per the requirements of the applications utilizing its intercloud secure communication framework

Information Outlook, September 2005

Volume 9, Issue 9https://scholarworks.sjsu.edu/sla_io_2005/1008/thumbnail.jp

Available Bandwidth Inference Based On Node-Centric Clusters

End-to-End Available Bandwidth (AB) is a real-time network metric that is useful for a wide range of applications including content distribution networks, multimedia streaming applications and overlay networks. In a large network with several thousand nodes, it is infeasible to perform all-pair bandwidth measurements as AB measurements could induce traffic overhead along the path. Also because of its dynamic nature, the measurements have to be performed frequently thus imposing significant probe traffic overhead on the network. In this paper, we discuss a clustering based distributed algorithm to infer the AB between any pair of nodes in a large network based on measurements performed on a subset of end-to-end paths. The algorithm was validated on Planet-Lab and for some nodes, 80% of the inferences were within 50% of the actual value

Strategic role of internet-related technologies in supply chain networks

PhD ThesisOrganisations are operating in increasingly competitive market places. To enhance competitiveness, organisations are shifting their focus from individual supply chains to improving the responsiveness of the whole Supply Chain Network (SCN) that serves and impacts the level of final product or service provided to customers. Consequently, there has been a major upsurge of interest in the role of Internet-related technologies (IRT) in advancing SCNs. This area was examined by conducting case studies with large organisations from a range of industries that focused on the function of IRT in inter-organisational supply chain processes. A number of major themes emerged. Firstly, it is clear that IRT will be at the heart of future SCN communication surrounding enabling, operational and strategic supply chain processes. IRT provide a mechanism for integrating different supply chainrelated systems thus leading to improved information sharing and visibility. Furthermore, it widens the scope and flexibility of intra-organisational and interorganisational linkages and pathways that are available between different network members. In addition, IRT is being used to broaden and deepen relationships with key partners and within teams formed around supply chain processes. IRT can also be personalised to suit different organisations and people in the SCN and to provide appropriate access to web links, information and applications. However, it is important to understand that IRT cannot be equally applied throughout the supply chain. A number of factors will influence its suitability including the type and stage of supply chain processes, the nature of activities, the content of communication and the people communicating. The thesis will provide guidance to academics and practitioners on the strategic role of IRT. Finally, future research is recommended to investigate the additional impact that smart tags and mobile technologies will have and the long term effects of technological linkages on social relations between different network members.Division of Business Information Management and the Department of Computing, of Glasgow Caledonian University

Information Outlook, September 1998

Volume 2, Issue 9https://scholarworks.sjsu.edu/sla_io_1998/1008/thumbnail.jp