Performance evaluation of information and communications technology infrastructure for smart distribution network applications

This thesis was submitted for the degree of Master of Philosophy and awarded by Brunel University.Current electrical networks require secure, scalable and cost-effective Information and Communications Technology (ICT) solutions to facilitate the novel functionalities required by Smart Grids. Countries around the globe are investigating alternative energy sources to mitigate the current energy crisis and environmental issues experienced by many countries due to global warming, rapid growth of population, inefficient energy management, dwindling fossil fuel resources, etc. Therefore, alternative or renewable energy sources, such as wind, solar, hydro, combined heat and power, etc., are required to mitigate such a crisis and such sources will also need to be integrated in to the power grid in a distributed manner. Such distributed energy sources are mainly connected to the distribution networks and introduce huge challenges to the distribution network operator (DNO). Many of these challenges cannot be dealt with effectively using existing network operation mechanisms therefore the research and development of novel ICT solutions to support smart distribution network operation is required. This research investigated suitable ICT solutions to enable the Smart Grid to tackle these challenges and proposes ICT infrastructure models that can be used for simulation studies in order to investigate cost-effective, scalable and secure solutions for the DNOs. Initially, a Quality of Service (QoS) monitoring test-bed was proposed to evaluate the performance of bandwidth intensive applications, such as smart meter data transmission. Simulation studies for different communication technologies, cellular and Power Line Communication (PLC), were also carried out and the simulation models were verified using experimental test results. Finally, the modelling and analysis of smart metering infrastructure was carried out using simulation and extensive studies were performed to evaluate the data transmission rate performance for different configurations of smart meters and concentrators

Digitalization along with 5G and 6G Networks – Determinants and Consequences

Digitalization is a process which enters all areas of human, business, and social activity. It is a significant megatrend in business transformation. It serves as a source of innovation, a tool for value creation, and an infrastructure facilitating access to the Internet. It is a necessity when living in the network society, as it allows for greater flxibility in reacting to the changing environment. Digitalization involves communication, distribution, products, and services. It brings specific benefits to organizations operating in the network society. It is the major source of innovation, as well as the essence of technological development of the industry, therefore, further development of digital business might be expected. 5G and 6G networks are a requisite condition for Polish enterprises to join global production and service networks. Furthermore, these networks create opportunities for development in the field of economy and in the social sphere. The development of digitalization along with 5G and 6G networks raises both hope and concern, hence entailing an urgent need to raise public awareness in this respect as well. The aim of the article is to illustrate the role, importance, determinants, and consequences of digitalization for organizational management in the network society. In the face of a rapidly changing environment full of hazards and uncertainty, digitalization emerges as a way of conducting business, which enables companies to reach a greater number of customers and improve operational efficiency. The article also refers to the determinants and consequences of 5G and 6G networks. The applied research methods include an extensive analysis of the existing literature and inference based on the data available.Digitalization is a process which enters all areas of human, business, and social activity. It is a significant megatrend in business transformation. It serves as a source of innovation, a tool for value creation, and an infrastructure facilitating access to the Internet. It is a necessity when living in the network society, as it allows for greater flexibility in reacting to the changing environment. Digitalization involves communication, distribution, products, and services. It brings specific benefits to organizations operating in the network society. It is the major source of innovation, as well as the essence of technological development of the industry, therefore, further development of digital business might be expected. 5G and 6G networks are a requisite condition for Polish enterprises to join global production and service networks. Furthermore, these networks create opportunities for development in the field of economy and in the social sphere. The development of digitalization along with 5G and 6G networks raises both hope and concern, hence entailing an urgent need to raise public awareness in this respect as well. The aim of the article is to illustrate the role, importance, determinants, and consequences of digitalization for organizational management in the network society. In the face of a rapidly changing environment full of hazards and uncertainty, digitalization emerges as a way of conducting business, which enables companies to reach a greater number of customers and improve operational efficiency. The article also refers to the determinants and consequences of 5G and 6G networks. The applied research methods include an extensive analysis of the existing literature and inference based on the data available

Internet innovations:exploring new horizons

The aim of this paper is to provide a standpoint on an emerging trend in sharing digital video content over the Internet. The paper is based on participative evaluative analysis of business model employed by digital video content sharing providers. The authors have found that because of wide diffusion of broadband and cheap video recording equipment, enabling digital video content to be shared online, and emerging business internet video sharing practice its users increasingly find themselves infringing the intellectual property rights of others. This has implications for anyone using online video resources. The paper offers an insight into the increasing popularity of online video and the resulting dilemmas encountered by internet researchers; it also offers a functional way for researchers, businesses and online users to understand the mechanism of infringement of the intellectual property rights relating to online video content. The paper further contributes to expanding the understanding of internet users behaviour in relation to digital video content creation and distribution in the context of challenges faced by cyberlaw

Multimedia delivery in the future internet

The term “Networked Media” implies that all kinds of media including text, image, 3D graphics, audio and video are produced, distributed, shared, managed and consumed on-line through various networks, like the Internet, Fiber, WiFi, WiMAX, GPRS, 3G and so on, in a convergent manner [1]. This white paper is the contribution of the Media Delivery Platform (MDP) cluster and aims to cover the Networked challenges of the Networked Media in the transition to the Future of the Internet. Internet has evolved and changed the way we work and live. End users of the Internet have been confronted with a bewildering range of media, services and applications and of technological innovations concerning media formats, wireless networks, terminal types and capabilities. And there is little evidence that the pace of this innovation is slowing. Today, over one billion of users access the Internet on regular basis, more than 100 million users have downloaded at least one (multi)media file and over 47 millions of them do so regularly, searching in more than 160 Exabytes1 of content. In the near future these numbers are expected to exponentially rise. It is expected that the Internet content will be increased by at least a factor of 6, rising to more than 990 Exabytes before 2012, fuelled mainly by the users themselves. Moreover, it is envisaged that in a near- to mid-term future, the Internet will provide the means to share and distribute (new) multimedia content and services with superior quality and striking flexibility, in a trusted and personalized way, improving citizens’ quality of life, working conditions, edutainment and safety. In this evolving environment, new transport protocols, new multimedia encoding schemes, cross-layer inthe network adaptation, machine-to-machine communication (including RFIDs), rich 3D content as well as community networks and the use of peer-to-peer (P2P) overlays are expected to generate new models of interaction and cooperation, and be able to support enhanced perceived quality-of-experience (PQoE) and innovative applications “on the move”, like virtual collaboration environments, personalised services/ media, virtual sport groups, on-line gaming, edutainment. In this context, the interaction with content combined with interactive/multimedia search capabilities across distributed repositories, opportunistic P2P networks and the dynamic adaptation to the characteristics of diverse mobile terminals are expected to contribute towards such a vision. Based on work that has taken place in a number of EC co-funded projects, in Framework Program 6 (FP6) and Framework Program 7 (FP7), a group of experts and technology visionaries have voluntarily contributed in this white paper aiming to describe the status, the state-of-the art, the challenges and the way ahead in the area of Content Aware media delivery platforms

Analysis and implementation of the Large Scale Video-on-Demand System

Next Generation Network (NGN) provides multimedia services over broadband based networks, which supports high definition TV (HDTV), and DVD quality video-on-demand content. The video services are thus seen as merging mainly three areas such as computing, communication, and broadcasting. It has numerous advantages and more exploration for the large-scale deployment of video-on-demand system is still needed. This is due to its economic and design constraints. It's need significant initial investments for full service provision. This paper presents different estimation for the different topologies and it require efficient planning for a VOD system network. The methodology investigates the network bandwidth requirements of a VOD system based on centralized servers, and distributed local proxies. Network traffic models are developed to evaluate the VOD system's operational bandwidth requirements for these two network architectures. This paper present an efficient estimation of the of the bandwidth requirement for the different architectures.Comment: 9 pages, 8 figure

A two-level Markov model for packet loss in UDP/IP-based real-time video applications targeting residential users

The packet loss characteristics of Internet paths that include residential broadband links are not well understood, and there are no good models for their behaviour. This compli- cates the design of real-time video applications targeting home users, since it is difficult to choose appropriate error correction and concealment algorithms without a good model for the types of loss observed. Using measurements of residential broadband networks in the UK and Finland, we show that existing models for packet loss, such as the Gilbert model and simple hidden Markov models, do not effectively model the loss patterns seen in this environment. We present a new two-level Markov model for packet loss that can more accurately describe the characteristics of these links, and quantify the effectiveness of this model. We demonstrate that our new packet loss model allows for improved application design, by using it to model the performance of forward error correction on such links

An Economist's Guide to Digital Music

In this guide, we discuss the impact of digitalization on the music industry. We rely on market and survey data at the international level as well as expert statements from the industry. The guide investigates recent developments in legal and technological protection of digital music and describes new business models as well as consumers' attitude towards music downloads. We conclude the guide by a discussion of the evolution of the music industry

Applications of satellite technology to broadband ISDN networks

Two satellite architectures for delivering broadband integrated services digital network (B-ISDN) service are evaluated. The first is assumed integral to an existing terrestrial network, and provides complementary services such as interconnects to remote nodes as well as high-rate multicast and broadcast service. The interconnects are at a 155 Mbs rate and are shown as being met with a nonregenerative multibeam satellite having 10-1.5 degree spots. The second satellite architecture focuses on providing private B-ISDN networks as well as acting as a gateway to the public network. This is conceived as being provided by a regenerative multibeam satellite with on-board ATM (asynchronous transfer mode) processing payload. With up to 800 Mbs offered, higher satellite EIRP is required. This is accomplished with 12-0.4 degree hopping beams, covering a total of 110 dwell positions. It is estimated the space segment capital cost for architecture one would be about $190M whereas the second architecture would be about$250M. The net user cost is given for a variety of scenarios, but the cost for 155 Mbs services is shown to be about $15-22/minute for 25 percent system utilization