A Fast Model for Evaluating the Detection of Selfish Nodes Using a Collaborative Approach in MANETs
Mobilead-hocnetworks(MANETs)relyonnetworkcooperationschemestowork properly. Nevertheless, if nodes have a selfish behaviour and are unwilling to cooperate, the overall network performance could be seriously affected. The use of watchdogs is a well- known mechanism to detect selfish nodes. In this pa...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/45351 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/45351 |
| Access Level: | acceso abierto |
| Palabra clave: | Wireless networks MANETs Performance evaluation Selfish nodes ARQUITECTURA Y TECNOLOGIA DE COMPUTADORES |
| Sumario: | Mobilead-hocnetworks(MANETs)relyonnetworkcooperationschemestowork properly. Nevertheless, if nodes have a selfish behaviour and are unwilling to cooperate, the overall network performance could be seriously affected. The use of watchdogs is a well- known mechanism to detect selfish nodes. In this paper we propose a collaborative watchdog approach, which is based on the fast diffusion of selfish nodes awareness. Then, we introduce an analytical model to evaluate the time of detection and the overhead (number of messages) of our collaborative watchdog approach for detecting one selfish node. This model is extended for the case of several selfish nodes, including a mean¿max approximation for a feasible computation when the number of selfish nodes is high. The results show that a collaborative watchdog is a very efficient approach since the detection time of selfish nodes is reduced, and the overall overhead is very low. |
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