OLSR Fuzzy Cost (OLSR-FC): an extension to OLSR protocol based on fuzzy logic and applied to avoid selfish nodes
DOI:
https://doi.org/10.22456/2175-2745.86380Keywords:
MANETS, Selfish Nodes, Routing, OLSR, Fuzzy LogicAbstract
The mobile ad-hoc networks (MANET) are those whose nodes have mobility, energy restriction and operate simultaneously as end systems and router. One of the main problems found in MANETs is the occurrence of selfish nodes, which are those that refuse to route packets for other nodes. To address the issue of selfish nodes in MANETs and improve the flow of traffic in these networks, this paper proposes an extension to the OLSR protocol, based on Fuzzy logic, called OLSR Fuzzy Cost (OLSR -FC). Using the NS-2 simulator, the OLSR-FC proposal was compared to other extensions of OLSR protocol (e.g., OLSR-ETX, OLSR-ML e OLSR-MD) concerning the performance metrics: packet loss, end-to-end delay, Jitter, power consumption, routing overhead and throughput. The results showed that OLSR-FC obtains better performance than the evaluated extensions, avoiding selfish nodes and selecting routes whose links have little packet losses.
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