Events agenda

31 May
2012

Low cost Network Coding for Collaborative Video Streaming

Nikolaos Thomos, Senior Researcher, Signal Processing Laboratory (LTS4), Swiss Federal Institute of Technology (EPFL), Lausanne, and Computers and Distributed Systems (CDS) laboratory at University of Bern (UniBe), Switzerland
We focus on collaborative video streaming in wired overlay networks using low cost network codes. We propose a scheme that builds on both rateless codes and network coding in order to improve the system throughput and the video quality at clients. Our hybrid coding algorithm permits to efficiently exploit the available source and path diversity, without the need either for expensive routing or for scheduling algorithms.
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29 May
2012

Stochastic Modeling with METFAC

Juan A. Carrasco, Associate Professor, Electronics Engineering Department, Universitat Politecnica de Catalunya, Spain
METFAC-2.1 is a software tool for stochastic modeling using Markov reward models, i.e. continuous-time Markov chains with a reward rate structure on their state space. The tool has been developed under the direction of Prof. Juan A. Carrasco and offers many state-of-the-art numerical methods as well as simulation methods.
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22 May
2012

ErdOS: The Case for Opportunistic Social Computing

Narseo Vallina-Rodriguez, PhD candidate in Computer Science, Computer Lab, University of Cambridge, UK
Mobile devices are energy-limited. Both industry and the research community proposed solutions to overcome these limitations with relative success at different levels such as hardware, operating system and even applications.
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21 May
2012

Flow allocation with joint channel and power assignment in multihop radio networks using game theory

Jorge Ortín, University of Zaragoza, Spain
Autonomous, self-configuring multihop networks present a versatile solution to provide broadband services with infrastructure-less deployments and decentralized management. Furthermore, their intrinsic adaptability and resilience can be enhanced with cognitive radio technology, enabling the nodes of the network to adjust their transmitting parameters to the specific operational environment.
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18 May
2012

Insights on Distributed Backup and Storage

Matteo Dell'Amico, Researcher, Eurecom, France
While a considerable amount of research has been devoted to peer-to-peer backup and storage, no such system actually became widely adopted in the wild. My take on this is that there is the opportunity to build better, and possibly more successful, systems: while some design issues (e.g., erasure coding and data indexing) have been well explored, others have been barely scratched.
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17 May
2012

From a national leadership to the World Championship. Lessons learned from Telefónica's internationalization process

José CEA JIMENEZ, Independent Consultant, Information and Communications Technologies, Spain
This presentation intends to extract some useful hints on how to successfully manage an internationalisation process. It is focused on the specific case of a Spanish very large company: Telefónica, the leading Spanish telecommunications operator and one of the Top Ten telcos in the worldwide ranking by market cap nowadays.
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14 May
2012

Auctions of Licensed vs Unlicensed Use of Spectrum

Alonso Silva, Postdoctoral Researcher, Department of EECS, University of California, Berkeley, USA
Auctions have regained interest from researchers due to its different new applications (Google AdWords auctions, cloud computing auctions, privacy auctions, and white spaces spectrum auctions). In this work in particular we explore auctions for spectrum that can be allocated either to a single bidder (for licensed use) or to a collection of bidders (for unlicensed use).
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11 May
2012

e-Energy 2012, the Third International Conference on Future Energy Systems, Where Energy, Computing and Communication Meet

e-Energy is the third International Conference on Future Energy Systems, which is organized annually since 2010. Due to the increasing significance of power consumption in computing and networking, the goal of e-Energy is to bring together researchers, developers and practitioners working in this area to discuss recent and innovative results, as well as identify future directions and challenges. The continuing spread of Information and Communication Technology (ICT) has contributed much to the reduction of energy consumption in many areas of everyday life. Nevertheless ICT infrastructure continues to expand in capacity and reach, and needs to be more energy-efficient itself. Additionally, ICT can be used to optimize the production, transport and consumption of energy in other setups.
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7 May
2012

Addressing resource issues in new live video streaming systems

Gwendal Simon, Associate Professor, Telecom Bretagne, France; Visiting Researcher, University of Waterloo, UK
The delivery of live video streams over the plain old best-effort Internet is a major challenge. This talk deals with the issue of under-provisioning in the main delivery platforms, i.e. when the equipments that are in charge of delivering the video do not have enough upload capacity to serve all clients.
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4 May
2012

Network Reliability in the Software Era - Finding Bugs in OpenFlow Applications

Dr. Marco Canini, Postdoctoral researcher, EPFL, Switzerland
Nowadays users expect to experience highly dependable network connectivity and services. However, several recent episodes demonstrate that software errors and operator mistakes continue to cause undesired disturbances and outages. Software-defined networking (SDN) is a new kind of network architecture that decouples the control plane from the data plane – a vision currently embodied in OpenFlow. By logically centralizing the control-plane computation, SDN provides the opportunity to remove complexity from and introduce new functionality in our networks. On the other hand, as the network programmability enhances, risks arise that buggy software in network controllers may disrupt an entire network.
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