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Future Sustainable Internet Energy-Defined Networking
This paper presents a comprehensive set of design methods for making future Internet networking fully energy-aware and sustainably minimizing and managing the energy footprint. It includes (a) 41 energy-aware design methods, grouped into Service Operations Support, Management Operations Support, Compute Operations Support, Connectivity/Forwarding Operations Support, Traffic Engineering Methods, Architectural Support for Energy Instrumentation, and Network Configuration; (b) energy consumption models and energy metrics are identified and specified. It specifies the requirements for energy-defined network compliance, which include energy-measurable network devices with the support of several control messages: registration, discovery, provisioning, discharge, monitoring, synchronization, flooding, performance, and pushback.
Journal Article
QoS-Aware Service Selection Algorithms for Pervasive Service Composition in Mobile Wireless Environments
The successful application of pervasive services running in mobile wireless networks and devices relies on its ability to provide efficient and cost-effective QoS (Quality of Service) support. This paper proposes a comprehensive QoS model specifically for pervasive services. It considers not only user-perceived factors but also mobile wireless network characteristics. The corresponding formula to calculate each QoS criterion is also devised. In particular, this paper formulates the QoS-aware service selection problem for pervasive service composition and proposes some solutions to the problem, i.e., global-search-based LOSSA (local optimal service selection algorithm) and limited broadcast based LOSSA-
k
. The evaluation results of the algorithms have shown the effectiveness of the QoS model and the efficiency of the proposed LOSSAs.
Journal Article
The Reservoir model and architecture for open federated cloud computing
The emerging cloud-computing paradigm is rapidly gaining momentum as an alternative to traditional IT (information technology). However, contemporary cloud-computing offerings are primarily targeted for Web 2.0-style applications. Only recently have they begun to address the requirements of enterprise solutions, such as support for infrastructure service-level agreements. To address the challenges and deficiencies in the current state of the art, we propose a modular, extensible cloud architecture with intrinsic support for business service management and the federation of clouds. The goal is to facilitate an open, service-based online economy in which resources and services are transparently provisioned and managed across clouds on an on-demand basis at competitive costs with high-quality service. The Reservoir project is motivated by the vision of implementing an architecture that would enable providers of cloud infrastructure to dynamically partner with each other to create a seemingly infinite pool of IT resources while fully preserving their individual autonomy in making technological and business management decisions. To this end, Reservoir could leverage and extend the advantages of virtualization and embed autonomous management in the infrastructure. At the same time, the Reservoir approach aims to achieve a very ambitious goal: creating a foundation for next-generation enterprise-grade cloud computing.
Journal Article
A Selective Downlink Scheduling Algorithm to Enhance Quality of VOD Services for WAVE Networks
Providing quality-of-service- (QoS-) guaranteed video on demand (VOD) services over wireless access in vehicular environments (WAVEs) is a challenge as WAVE adopts enhanced distributive channel access (EDCA), a contention-based channel access mechanism, for air interface access control. This paper proposes a selective downlink scheduling (SDS) algorithm to enhance the quality of VOD for WAVE networks. According to the importance of video decoding, video packets are categorized into high and low priorities. The categorized packets are put into different queues in roadside units (RSUs) to contend for transmission opportunities. Aiming to improve video playback quality and reduce video playback delay, the proposed SDS algorithm schedules video packets based on their importance, playback deadline, and their real-time parameters of receiving onboard units (OBUs), such as velocity and remaining dwelling time. The effectiveness of SDS algorithm is verified by simulations.
Journal Article
Software architecture definition for on-demand cloud provisioning
Cloud computing is a promising paradigm for the provisioning of IT services. Cloud computing infrastructures, such as those offered by the RESERVOIR project, aim to facilitate the deployment, management and execution of services across multiple physical locations in a seamless manner. In order for service providers to meet their quality of service objectives, it is important to examine how software architectures can be described to take full advantage of the capabilities introduced by such platforms. When dealing with software systems involving numerous loosely coupled components, architectural constraints need to be made explicit to ensure continuous operation when allocating and migrating services from one host in the Cloud to another. In addition, the need for optimising resources and minimising over-provisioning requires service providers to control the dynamic adjustment of capacity throughout the entire service lifecycle. We discuss the implications for software architecture definitions of distributed applications that are to be deployed on Clouds. In particular, we identify novel primitives to support service elasticity, co-location and other requirements, propose language abstractions for these primitives and define their behavioural semantics precisely by establishing constraints on the relationship between architecture definitions and Cloud management infrastructures using a model denotational approach in order to derive appropriate service management cycles. Using these primitives and semantic definition as a basis, we define a service management framework implementation that supports on demand cloud provisioning and present a novel monitoring framework that meets the demands of Cloud based applications.
Journal Article
Towards the future internet : a European research perspective
The Internet is a remarkable catalyst for creativity, collaboration and innovation, providing us today with amazing possibilities that just two decades ago would have been impossible to imagine. Our challenge today is to prepare a trip into the future: what will be the Internet in ten or twenty years from now and what more amazing things will it offer to people? In order to see what the future will bring, we first need to consider some important challenges that the Internet faces today. European scientists proved that they are at the forefront of Internet research already since the invention of the web. But the challenges are huge and complex and cannot be dealt with in isolation. The European Future Internet Assembly is the vehicle to a fruitful scientific dialogue, bringing together the different scientific disciplines that contribute to the Future Internet development. Until now, scientists from more than 90 research projects were funded with around 300 million euros under the 7th Framework Programme. Another 400 million euros will be made available in the near future. These amounts coupled with private investments bring the total investment to more than a billion euros, showing Europe's commitment to address the challenges of the future Internet. This book is a peer-reviewed collection of scientific papers addressing some of the challenges ahead that will shape the Internet of the Future. The selected papers are representative of the research carried out by EU-funded projects in the field. European scientists are working hard to make the journey to the Future Internet as exciting and as fruitful as was the trip that brought us the amazing achievements of today. We invite you to read their visions and join them in their effort so Europe can fully benefit from the exciting opportunities in front of us.
eBook
Towards the Future Internet
This book contains papers describing the major scientific achievements supported by European funding in the area of Future Internet. It is published in the context of FIA, the Future Internet Assembly\"1\", which is structured to permit interactions across technical domains from researchers and other stakeholders active in Future Internet research. FIA holds two meetings per year and calls on those involved in relevant funded research projects to participate actively and to steer its work. On 31 March, 2008 the Bled declaration \"Towards a European approach to the Future Internet\"\"2\" was officially presented at the FIA Conference in Bled, Slovenia: \"In the future, even more users, objects, services and critical information infrastructures will be networked through the Future Internet which will underpin an ever larger share of our modern and global economies. It istherefore time to strengthen and focus European activities on the Future Internet to maintain Europe's competitiveness in the global marketplace. A significant change is required and the European Internet scientific and economic actors, researchers, industrialists, SMEs, users, service and content providers, now assert the urgent necessity to redesign the Internet, taking a broad multidisciplinary approach, to meet Europe'ssocietal and commercial ambitions.\" \"1\" For more information see http://www.future-internet.eu \"2\" For more information see http://www.future-internet.eu/publications/bled-declaration.html.
eBook
Omrezje prihodnosti - stalisce ITU-T/Future Network - A Viewpoint from ITU-T
Recently, there have been continuous efforts and advances in progress in the field of research and development of the Future Networks (FNs) technologies, such as network virtualization and software-defined network (SDN), information centric networking (ICN), cloud networking, autonomic management, and open connectivity. In late 2009 ITU-T started working on the FNs standardization. In their Recommendations based on their initial results that lay down the major guidelines for further in-depth work. In this paper we present the background and the context of the ITU-T FNs' standardization and plans for the future work.
Journal Article
Programmable networks for IP service deployment
The purpose of this book is to introduce readers to the current state of the art and the future challenges of programmable networks as an enabling step towards rapid, autonomic and flexible service deployment, and to present a novel programmable network and management approach.
eBook