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A practical reputation system for pervasive social chatting

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Coping With Misbehavior in Mobile Ad-hoc Networks

Sonja Buchegger

In this work, we address the question of how to enable a system to operate despite the presence of misbehavior. Specifically, in a mobile ad-hoc network, how can we keep the network functional for normal nodes when other nodes do not route and forward corr ...

CRC Press2004

Analysis of a Robust Reputation System for Self-Organized Networks

Jean-Yves Le Boudec

Self-organized networks require some mechanism to ensure cooperation and fairness in the face of individual utility maximizing users and potential malicious attacks. Otherwise, network performance can be seriously deteriorated. One promising approach are d ...

2004

A Robust Reputation System for Peer-to-Peer and Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Reputation systems can be tricked by the spread of false reputation ratings, be it false accusations or false praise. Simple solutions such as exclusively relying on one`s own direct observations have drawbacks, as they do not make use of all the informati ...

2004

The Effect of Rumor Spreading in Reputation Systems for Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Mobile ad-hoc networks rely on the cooperation of nodes for routing and forwarding. For individual nodes there are however several advantages resulting from noncooperation, the most obvious being power saving. Nodes that act selfishly or even maliciously p ...

2003

A Robust Reputation System for Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Reputation systems in mobile ad-hoc networks can be tricked by the spreading of false reputation ratings, be it false accusations or false praise. Simple solutions such as exclusively relying on one's own direct observations have drawbacks, as they do not ...

2003

A Robust Reputation System for Mobile Ad-hoc Networks

Jean-Yves Le Boudec, Sonja Buchegger

Reputation systems in mobile ad-hoc networks can be tricked by the spreading of false reputation ratings, be it false accusations or false praise. Simple solutions such as exclusively relying on one`s own direct observations have drawbacks, as they do not ...

2003

Trust-Aware Cooperation

Karl Aberer, Manfred Hauswirth, Zoran Despotovic

In mobile teamwork environments two basic problems exist: how to discover someone based on a profile (skills, reputations) and how to assess that person’s “credibility” (trust). A lot of work has been done on the issues of collecting and ...

2002

Malice, Selfishness, and Slander in Mobile Ad-hoc Networks.

Jean-Yves Le Boudec, Sonja Buchegger

In mobile ad-hoc networks nodes need to cooperate to communicate, but there are many reasons for non-cooperation. Saving power or preventing other nodes from obstructing a service are merely selfish reasons for non-cooperation, whereas nodes may also activ ...

2002