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Updates in Highly Unreliable, Replicated Peer-to-Peer Systems

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Semantic Overlay Networks

Karl Aberer, Philippe Cudré-Mauroux

In a handful of years only, Peer-to-Peer (P2P) systems have become an integral part of the Internet. After a few key successes related to music-sharing (e.g., Napster or Gnutella), they rapidly developed and are nowadays firmly established in various conte ...

2005

Perfect Simulation and Stationarity of a Class of Mobility Models

Jean-Yves Le Boudec, Milan Vojnovic

We define ``random trip", a generic mobility model for independent mobiles that contains as special cases: the random waypoint on convex or non convex domains, random walk with reflection or wrapping, city section, space graph and other models. We use Palm ...

2005

Efficient, self-contained handling of identity in Peer-to-Peer systems

Karl Aberer, Manfred Hauswirth, Anwitaman Datta

Identification is an essential building block for many services in distributed information systems. The quality and purpose of identification may differ, but the basic underlying problem is always to bind a set of attributes to an identifier in a unique an ...

2004

Perfect Simulation and Stationarity of a Class of Mobility Models

Jean-Yves Le Boudec, Milan Vojnovic

2004

Lazy Parameter Passing

Patrick Eugster

Peer-to-peer (P2P) systems are strongly decentralized and asynchronous distributed settings involving a potentially large number of hosts. A common programing model for P2P infrastructures is that of a distributed hashtable (DHT), though which peers share ...

2003

Handling Identity in Peer-to-Peer Systems

Karl Aberer, Manfred Hauswirth, Anwitaman Datta

Due to the limited number of available IP addresses most computers on the Internet use dynamic IP addresses which causes problems for applications that have to maintain rout-ing tables, for example, peer-to-peer systems. To overcome this we propose unique ...

2003

The Quest for Balancing Peer Load in Structured Peer-to-Peer Systems

Karl Aberer, Manfred Hauswirth, Anwitaman Datta

Structured peer-to-peer (P2P) systems are considered as the next generation application backbone on the Internet. An important problem of these systems is load balancing in the presence of non-uniform data distributions. In this paper we propose a complete ...

2003

Abstracting Remote Object Interaction in a Peer-2-Peer Environment

Patrick Eugster

Leveraged by the success of applications aiming at the ``free'' sharing of data in the Internet, the paradigm of peer-to-peer (P2P) computing has been devoted substantial consideration recently. This paper presents an abstraction for remote object interact ...

2002

OS Support for P2P Programming: a Case for TPS

Rachid Guerraoui, Patrick Eugster

Just like Remote Procedure Call (RPC) turned out to be a very effective OS ab-straction in building client-server applications over LANs, Type-based Publish-Sub-scribe (TPS) can be viewed as a high-level candidate OS abstraction for building Peer-to-Peer ( ...

2002

Managing Trust in a Peer-2-Peer Information System

Karl Aberer, Zoran Despotovic

Managing trust is a problem of particular importance in peer-to-peer environments as one encounters frequently unknown agents. Existing methods for trust management based on reputation do however not scale as they rely on some form of central database or g ...

2001