The Internet routing ecosystem is facing substantial scalability challenges due to continuous, significant growth of the state represented in the data plane.

IMDEA Networks is organizing its 2nd Annual International Workshop, this year focusing on Energy Efficiency and Networking on 31st May - 1st June, 2010 in Madrid, Spain. The workshop will include presentations and a panel dealing with the latest advances and challenges facing the field. Energy efficiency is becoming one of the most important issues of our time. Population growth and exhaustion of available energy sources makes clever use of energy one of the main challenges for our society. The objective of this workshop is to explore the role of networking in the general effort towards sustainable use of energy.

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.

Social scientist have traditionally had limited access to data about individuals, like their personality, relationships or tastes. The widespread use of Online Social Networks (OSNs) has changed this drastically, since OSNs provide huge amounts of data to work with. 

As a society we have come to rely upon our mobile phones for myriad daily tasks. It is striking how...

Online Behavioral targeted Advertising (OBA) has risen in prominence as a method to increase the effectiveness of online advertising. OBA operates by associating tags or labels to users based on their online activity and then using these labels to target them.

Spectrum scarcity and ever increasing densities of wireless network deployments have recently led to an opening of the 60 GHz millimeter-wave bands for unlicensed communication. In contrast to the previously used ISM bands below 5 GHz, a massive amount of 6-9 GHz of bandwidth is available at these frequencies. Usage of these resources is considered for wireless LAN and 5G cellular networks and with the ratification of the IEEE 802.11ad standard in December 2012, wireless LAN is about to bring millimeter-wave communication to the commercial market.

While some see in Border Gateway Protocol (BGP) a routing ambrosia to be enshrined, others perceive a basis of serious Internet connectivity limitations. Because the interdomain routing protocol realizes contracts between Autonomous Systems (ASes), this paper argues that contractual and routing issues need to be tackled jointly to overcome the connectivity limitations. We propose Route Bazaar, a backward-compatible system for flexible Internet connectivity. Inspired by the decentralized construction of trust in cryptocurrencies, Route Bazaar uses a decentralized public ledger and cryptography to provide ASes with automatic means to form, establish, and verify end-to-end connectivity agreements.

The impact of car accidents in human lives calls for a profound understanding of accident risk. However, the unpredictability of accidents and the unfeasibility of their reproduction make it difficult to identify the causes and patterns underlying individual accidents.

In this paper, we propose Floating Band D2D, an adaptive framework to exploit the full potential of Device-to-Device (D2D) transmission modes.