Institute IMDEA Networks annually holds a by-invitation-only thematic workshop in Madrid. The workshop accompanies a meeting of our Scientific Council comprised by prominent researchers. In addition to talks by Scientific Council members, the workshop includes invited talks by external experts in the research theme of the workshop. The goal of the 2012 workshop is to foster discussion on a critical aspect of research in networking: data.

Objectives of the meeting: Review status of the internal specifications milestones, synchronization intra and inter work packages and coordination for future work.

Give the attendees an evolutionary view on the access networks and open perspectives on the potential developments upcoming. It will always keep an eye on the standardization trends and other ecosystem parameters (as regulation, cost and timeline constrains) in order to provide the attendees the background to further perceive some of the upcoming opted solutions and dynamics

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.

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.

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.

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.

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.

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.

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).