E-Locus - Institutional Repository of the University of Crete - Ενσωμάτωση Μηχανισμών Διαχείρισης Εμπιστοσύνης, Πρόβλεψης Απώλειας Ζεύξης και Αντιμετώπισης Εγωϊσμού στο Πρωτόκολλο Dynamic Source Routing Κινητών Αδόμητων Δικτύων

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Identifier

uch.csd.msc//2004angelakis

Title

Ενσωμάτωση Μηχανισμών Διαχείρισης Εμπιστοσύνης, Πρόβλεψης Απώλειας Ζεύξης και Αντιμετώπισης Εγωϊσμού στο Πρωτόκολλο Dynamic Source Routing Κινητών Αδόμητων Δικτύων

Alternative Title

Integrating mechanisms for Trust Management, Link Failure Prediction and Selfishness Countermeasures into the Dynamic Source Routing protocol for mobile ad hoc networks

Creator

Angelakis, Evangelos

Abstract

With the wide spread of the IEEE 802.11 Specifications for Wireless LAN, mobile ad hoc networks (MANETs) have become a fast-growing field of research. With a range of applications that spans from military or emergency rescue operations to unplanned or home networks, MANETs present a challenging environment. Communication in MANETs relies on the wireless medium and the cooperation of their participants. Thus, their communication is susceptible both to poor link quality, as well as nodes that do not cooperate in the routing functions. We defined a generic, contributory trust management scheme, in which a node builds a Trust Metric of each of the rest of the participants on the network, based on immediate interactions with them, as well as through rumors spread from others. We also propose a link failure prediction mechanism and a mechanism to detect and deal with selfish nodes. All three mechanisms proposed have been designed and implemented as integrations into the Dynamic Source Routing (DSR) Protocol.Our implementation, testing and final evaluation for each of the proposed mechanisms was performed, in the OPNET modelling platform. Our tests have shown that link failure can be predicted and selfish behaviour can be successfully identified. Results have indicated that in order to deal with their effects, a DSR implementation with well-designed route caches is required.

Issue date

2004-04-01

Date available

2004-05-17

Collection

School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses

Type of Work--Post-graduate theses

Views

423

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