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Peer-to-peer
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Peer-to-peer computing draws on a well-known principle in distributed systems,
the functional equivalence of all the computing nodes. With peer-to-peer,
self-organization rather than human administration dynamically assigns
the different roles within the system. Thereby, the system becomes robust
against attacks and failures. Moreover, the system scales much better to
growing demands than classical client-server architectures. While file-sharing
is still the most prominent peer-to-peer application, a much broader spectrum
of applications can benefit from the peer-to-peer paradigm.
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Dr. Fuhrmann's research group investigates all aspects of peer-to-peer
computing, from the underlying conceptual principles over various algorithms
for self-organization to sensor-networks and even enterprise-level mission
critical applications.
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This work is supported by two research grants:
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The basic research concerning peer-to-peer and overlay networks is
funded by the German Research Foundation. This project investigates
especially the topological properties of the overlay networks that are
created by the various P2P algorithms and protocols.
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Within the European Union project SIMDAT
more than 25 partners teamed up to advance current grid technology towards
data grids for process and product development using numerical simulation
and knowledge discovery. To this end, the P2P research group contributes
its expertise concerning efficient P2P data distribution.
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Besides these publically funded projects, the group is also involved
in collaborations with partners from industry, especially with Beecon GmbH:
Beecon GmbH
is a Karlsruhe-based spin-off company of the University of Karlsruhe
founded in 2003. The company specializes into embedded sensing and communication
systems. Beecon GmbH and the P2P research group have successfully joined forces
for several smaller projects so far.
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Videgor
is a peer-to-peer hard disc video recorder.
With its help it is possible to record missed broadcasts from the past.
Videgor is based on a extension of Klaus Schmidinger's
Video Disk Recorders (VDR).
VDR is a program that converts a Linux PC into a video disc recorder
with time shifting capabilities.
Videgor extends the VDR to a distributed video recorder (D-VDR) by including
three plugins ((D-VDR-EPG, D-VDR-SCHEDULE, D-VDR-VIDEOTRANS) and by automatically
connecting the participating devices to a peer-to-peer network (IGOR).
With this peer-to-peer system the Videgor recorders can share recordings.
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Linyphi is the first realization of
SSR protocol on wireless Lan home router.
Of course, this implementation is also available on the normal Linux host.
Due to SSR's self-organizing properties,
the Linyphi mesh network can grow very large.
Moreover, local Linyphi clouds can be arbitrarily connected to other clouds
without any further configuration. This can be done wired or wirelessly.
We belive that this property, namely no extra cost for installing the first device
and increased performance for the second device on, helps to quickly promote
the deployment of Linyphi.
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P2P Projects