Situational awareness applications used in disaster response and tactical scenarios require efficient communication without support from a fixed infrastructure. As commercial off-the-shelf mobile phones and tablets become cheaper, they are increasingly deployed in volatile ad-hoc environments. Despite wide use, networking in an efficient and distributed way remains as an active research area, a...

Community networking is an emerging model of a shared communication infrastructure in which communities of citizens build and own open networks. Community networks offer successfully IP-based networking to the user. In addition, some hosts are connected to the network nodes in order to provide network management and end user services. Recently, clouds have been proposed for community networks. ...

This paper presents PrPl, a decentralized infrastructure that lets users participate in online social networking without loss of data ownership. PrPl adopts a person-centric architecture, where each individual uses a Personal-Cloud Butler service that provides a safe haven for one’s personal digital asset and supports sharing with fine-grain access control. A user can choose to run the Butler o...

Capacity scaling of a large hybrid network with unit node density, consisting of n wireless ad hoc nodes, base stations (BSs) equipped with multiple antennas, and one remote central processor (RCP), is analyzed when wired backhaul links between the BSs and the RCP are rate-limited. We deal with a general scenario where the number of BSs, the number of antennas at each BS, and the backhaul link ...

An approach of managing a service infrastructure for wireless local area networks (WLANs) is presented. This approach uses Active Network technology as developed in the IST project FAIN in order to deploy and run services at appropriate locations in the network. By introducing a service which monitors traffic and adaptively controls the access of mobile users it is possible to dynamically bind ...

Outsourcing of computation and storage infrastructure into the cloud entails new challenges for the architecture and design of multi-tenant datacenters. With the evolution of virtualization techniques, tenant applications do not need to be operated on dedicated servers. Software switches hereby play an important role by mediating between physical infrastructure and virtualized applications. In ...

Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating Radio Access Networks (RANs), ultra-high-capacity access/metro/core optical networks, and intra-datacentre (DC) network computational resources into single converged infrastructure. The present paper overviews main achievements obtained in ALLIANCE project. This project ...

As the internet continues to mature static content will continue to give way to dynamic, interactive multimedia content. This content will enrich all online media while at the same time imposing heavy bandwidth usage on the underlying network infrastructure. Multicast networking will undoubtedly increase in popularity to relieve the congested networks. Even as the scaling power of multicast net...

A massively multiplayer online game (MMOG) is a networked computer or video game in which tens of thousands to hundreds of thousands of players may interact with one another in real-time in a shared environment, even though these users may be separated by vast geographic distances. In the last decade the popularity of MMOGs has exploded. Unfortunately, the demand has far outweighed the resource...

Today on one hand wireless is emerging as the technology that is giving shape to more convenient and cost effective world on the other hand it demands wireless technology to expand from single home to whole world. This paper presents a comparison of the existing wireless technology Wi-Fi (IEEE 802.11) and WiMAX (IEEE 802.16e/m), with respect to technology which provides a better solution to bui...