The Experts below are selected from a list of 15417 Experts worldwide ranked by ideXlab platform
Alberto Leon-garcia - One of the best experts on this subject based on the ideXlab platform.
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Operations Research Methods for Autonomic Resource Management
Journal of Network and Systems Management, 2009Co-Authors: Ramy Farha, Alberto Leon-garciaAbstract:Varying service demands on Next Generation Networks requires autonomic resource management capabilities to ensure service delivery to customers, motivating the need to develop self-managing algorithms for this purpose. In this paper, we use algorithms from the Operations Research community for this purpose. First, we adapt the Transportation Model to manage distributed resources in the Next Generation network infrastructure. Coupled with monitoring capabilities, the proposed scheme can automatically adjust the virtual resource allocation to optimize the costs incurred by service providers in offering services to customers. Second, we propose the use of Inventory Control to predict needs for virtual resources and to pre-order required virtual resource amounts. We compare two possible Inventory Control models to manage the virtual resources involved in service delivery. We perform extensive simulations to show the performance improvements made possible by the use of the Transportation Model and Inventory Control for autonomic resource management in Next Generation Networks.
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QoS Control in Next-Generation Networks[ Guest Editorial]
IEEE Communications Magazine, 2007Co-Authors: Alberto Leon-garcia, Jun Kyun Choi, Indra WidjajaAbstract:The three articles in this special section are devoted to quality of service control in Next Generation networking.
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IPOM - A novel peer-to-peer naming infrastructure for Next Generation Networks
IP Operations and Management, 1Co-Authors: Ramy Farha, Alberto Leon-garciaAbstract:One of the major challenges in Next Generation Networks is naming, which allows the different entities on the network to identify, find, and address each other. In this paper, we propose a novel Peer-to-Peer naming infrastructure, which takes into account the expected changes in the Next Generation Networks due to the trends shaping network evolution. The success of the Peer-to-Peer paradigm for applications such as file sharing and instant messaging has lead to research on other areas where such a paradigm could be useful, to provide the scalability, robustness, and flexibility that characterize Peer-to-Peer applications.
Guillaume Rieublandou - One of the best experts on this subject based on the ideXlab platform.
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Inter-terminal multimedia session mobility in Next Generation Networks to enhance IPTV
2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010, 2010Co-Authors: Dominique Pichon, Pierrick S????t??, Jean-marie Bonnin, Guillaume RieublandouAbstract:Users have at their disposal more and more terminals to enjoy multimedia services. However, inter-user interactions are limited. Means allowing a user to transfer a running session from one terminal to another already exist, but it is usually impossible for extra terminals, belonging to the same user or not, to retrieve this session, as they have no knowledge about its existence. In this paper, we propose a new framework, wherein a dedicated entity collects session information and redistributes it to identified terminals, from the same user or not, according to criteria, such as the user preferences and the session characteristics. This framework can be applied to IPTV to enable seamless session mobility. We also discuss its implementation in Next Generation Networks.
Seshadri Mohan - One of the best experts on this subject based on the ideXlab platform.
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control and management in Next Generation Networks challenges and opportunities
IEEE Communications Magazine, 2000Co-Authors: A R Modarressi, Seshadri MohanAbstract:This article discusses the challenges and opportunities associated with a fundamental transformation of current Networks toward a multiservice ubiquitous infrastructure with a unified control and management architecture. After articulating the major driving forces for network evolution, we outline the fundamental reasons why neither the control infrastructure of the PSTN nor that of the present-day Internet is adequate to support the myriad of new services in Next-Generation Networks. Although NGN will inherit heavily from both the Internet and the PSTN, its control and management architecture is likely to be radically different from both, and will be anchored on a clean separation between a QoS-enabled transport/network domain and an object-oriented service/application domain, with a distributed processing environment that glues things together and universally addresses issues of distribution, redundancy, and concurrency control for all applications. Finally, we allude to the transition issues and show how voice-over-packet services are emerging as the bootstrap application for marshaling in the NGN architecture.
Jean-marie Bonnin - One of the best experts on this subject based on the ideXlab platform.
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Inter-terminal multimedia session mobility in Next Generation Networks to enhance IPTV
2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010, 2010Co-Authors: Dominique Pichon, Pierrick S????t??, Jean-marie Bonnin, Guillaume RieublandouAbstract:Users have at their disposal more and more terminals to enjoy multimedia services. However, inter-user interactions are limited. Means allowing a user to transfer a running session from one terminal to another already exist, but it is usually impossible for extra terminals, belonging to the same user or not, to retrieve this session, as they have no knowledge about its existence. In this paper, we propose a new framework, wherein a dedicated entity collects session information and redistributes it to identified terminals, from the same user or not, according to criteria, such as the user preferences and the session characteristics. This framework can be applied to IPTV to enable seamless session mobility. We also discuss its implementation in Next Generation Networks.
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Resource Management in Mobile Heterogeneous Networks: State of the Art and Challenges
2008Co-Authors: Kandaraj Piamrat, César Viho, Adlen Ksentini, Jean-marie BonninAbstract:Deployment of Next-Generation Networks (i.e. 4G) begins to spread throughout the world. Today's emerging multimedia application has many requirements in terms of quality of service and users always want to be best connected anywhere, anytime, and anyhow. To satisfy these demands, a variety of access technologies has become available: WiFi (Wireless Fidelity), WiMAX (Worldwide Interoperability for Microwave Access), and Cellular Networks. This has made it difficult for service provider to select the best network for requesting services and to control the quality level of ongoing connections. Thus, the use of resources management to prevent overloaded or underutilized Networks as well as to best satisfy users is indispensable. This report addresses the state of the art on radio resource management in Next-Generation Networks. Recent schemes in network selection and bandwidth allocation are discussed in several aspects, namely decision making, QoS, mobility, and architectural design.
Krishnamurthy Thalapathy - One of the best experts on this subject based on the ideXlab platform.
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IEEE SCC - An SOA Compass for Next Generation Networks
2006 IEEE International Conference on Services Computing (SCC'06), 2006Co-Authors: Raghu Anantharangachar, Prasanna Anantharamaiah, Krishnamurthy ThalapathyAbstract:Next Generation Networks (NGNs) are faced with a perennial problem of adding newer services at a very short time period, and with very high levels of quality, and this has really made them think of innovative solutions to quickly adapt to the situation. It is imperative that the NGN service providers consider and use Service Oriented Architecture (SOA) and its principles to achieve business goals and optimize longterm capital investment without compromising customer experience. We have studied the current problems faced by NGN Service Providers, and arrived at an innovative solution based on mathematical model to assist the Next Generation Network (NGN) service providers to use quantitative metrics to reach higher levels of service orientation. In addition, this methodology can be used to measure and optimize every investment made towards SOA alignment. Also, this methodology can be used to perform "what-if" analysis, in order to assess the impact of the business decisions without actually implementing those decisions.
