A reputation-based scheme for announcement messages in vehicular networks
English: Vehicular Ad-Hoc Networks (VANETs) are shaping up as the next step to provide information and safety services to vehicles. These networks are characterized for being variable in terms of connectivity and delay due to continuous changes in the topology. These conditions are acceptable for de...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2099.1/13013 |
| Acceso en línea: | https://hdl.handle.net/2099.1/13013 |
| Access Level: | acceso abierto |
| Palabra clave: | Mobile communication systems VANET Certificates Credentials Reputation Trust Certificados Credenciales Reputación Confianza Dispositius mòbils Innovacions tecnològiques Telecomunicació, Sistemes de Xarxes locals sense fil Wi-Fi Xarxes d'àrea local sense fils (Xarxes d'ordinadors) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes d'àrea local |
| Sumario: | English: Vehicular Ad-Hoc Networks (VANETs) are shaping up as the next step to provide information and safety services to vehicles. These networks are characterized for being variable in terms of connectivity and delay due to continuous changes in the topology. These conditions are acceptable for developing best effort information systems, no bounded in delay or rate. However, when dealing with critical safety applications, as emergency accident reports, some improvements are needed in terms of reliability and security. In this thesis, we present and classify the incoming VANETs services and the techniques to enable nodes to trust their neighbours'announcements in an efficient and secure manner. To overcome the limitations, we propose a reputation-aware system for VANETs based on digital credentials conveying the reputation value assigned to users. Finally we evaluate the costs and accuracy of this new proposal by itself and combined with the existing ones based on revocation lists. |
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