Statistiche



Network of Excellence in Wireless Communications

Project description

Local coordinator / Contact

Silvano Pupolin (e-mail)

WP R.11 - Opportunistic networks

In the pervasive communication scenarios delay-tolerant applications are expected to be frequently used whilst on the move, with the result that devices may often (but temporarily) be out of range and unable to access Internet services. This makes that a new paradigms, called opportunistic networking, is emerging as one of the most interesting evolution of mobile ad hoc networks (MANETs). Opportunistic networks exploit human mobility and local forwarding in order to distribute data. Information can be stored and passed, taking advantage of users mobility, or forwarded over a wireless link when an appropriate contact is met. New challenging cross-layer techniques are anticipated for this type of networks, including dissemination schemes, context-aware routing, and coding-based forwarding.

This WP will address the emerging paradigm of opportunistic communication, which enable nodes and user devices to self-configure and exploit resources in extremely dynamic networks. Due to the numerous emerging opportunistic networking applications, such as Wireless Sensor Networks (WSNs), Underwater Sensor Networks (UWSNs), Packet Switched Networks (PSNs), Delay-Tolerant Networks (DTNs), etc., strategies that can enable effective data communication in such challenging networking environments have become increasingly appealing. This paradigm encompasses features and methods that are especially suitable in both disconnected environments, in which islands of connected devices suddenly appear, disappear and reconfigure dynamically, and pervasive networking scenarios, where epidemic data exchanges occur among mobile devices in temporary proximity. This also includes techniques that exploit time-varying channel conditions and stochastically maximize the system performance (for given QoS requirements).

In this context, the objective of this WP is to create a new European research forum, starting from the partners’ current know-how, to study opportunistic networks which represent one of the most interesting evolutions of MANETs.

Funding Institution

European Union, under Framework Program 7, objective ICT-2007.1.1: the Network of the Future

Participating institutions

  • Istituto Superiore Mario Boella, Italy
  • Bilkent University, Turkey
  • Technion University, Israel
  • Institute of Accelerating Systems and Applications, National Kapodistrian University of Athens, Greece
  • Consorzio Nazionale Interuniversitario per le Telecomunicazioni (Universities of Bologna, Catania, Ferrara, Modena-Reggio Emilia, Padova, Pisa, Milano, Torino), Italy
  • Universitat Politecnica de Catalunya, Spain
  • Centre Tecnologic de Telecomunicacions de Catalunya, Spain
  • Instituto Superior Tecnico, Technical University of Lisbon, Portugal
  • French National Center for Scientific Research, France
  • French Nuclear Energy Commission, France
  • Institute for Communications Engineering, Munich University of Technology, Germany
  • Technical University of Aachen, Germany
  • Universite catholique de Louvain – Universiteit Gent, Belgium
  • Telecommunications Research Center Vienna, Vienna University of Technology, Austria
  • Poznan University of Technology, Poland
  • Chalmers – Karlstads Universiteit, Sweden
  • Aalborg University, Sweden

Project coordinator

Sergio Benedetto, Istituto Superiore Mario Boella, Italy

D.GT activity plan

Aim of the project

The fundamental premise behind NEWCOM++ can be summarized as follows:

1. Despite the fact that the European space already includes very strong research groups in many of the scientific areas commonly and collectively described as wireless communications, the landscape does suffer from symptoms of thematic fragmentation, lack of coordination on a large scale, under-funding and lack of a critical mass in certain vital areas, symptoms wich may prevent Europe from being the envisioned and desired leader at the international scene;

2. The research challenges posed by the target outcome “Ubiquitous network infrastructure and architectures” are by their very nature very complex and interdisciplinary, thus requiring a fully committed and large-scale collaboration between strong research groups in different disciplines, a collection that can hardly be found at a single institution/country;

3. The NEWCOM NoE, funded in FP6 and ended on February 28, 2007, has successfully put in motion an effective integration mechanism between these spatially scattered research entities, thus enabling a process which, however, could not be fully materialized in the three years of its operation (as opposed to the original 5-year plan).

Therefore, the main manner by which NEWCOM++ intends to promote solutions to the above mentioned problems and challenges is by creating a trans-European virtual research centre linking a proper number of leading European research groups in a highly integrated, carefully harmonized, cooperative fashion.

Newcom++logo.jpg

Web site for the project

http://www.newcom-project.eu:8080/Plone

WP R.2 - Feedback and Resolution of the Channel State

WP R.2 aims to explore the role of feedback in wireless communication networks and its relation to the resolution of the time-varying channel state. Aside from pure broadcast services, a important element of modern radio systems is their two-way nature which allows for a sharing of the medium in both directions for both communication and low-layer signalling of channel quality indicators and decoding capacity indicators. The focus of this study is the assessment of effects stemming from imperfect channel knowledge at the receiving end (and thus the transmitting end as well) and furthermore its impact on the construction of feedback information. Proper exploitation of feedback for both point-to-point two-way channels and multiuser/broadcast channels are considered. Broadband systems exploiting multiple-antennas at both the transmission and receiving ends are assumed from the outset.