Efficient Detection Of Selfish Node In Manet Using A Colloborative Watchdog
نویسندگان
چکیده
Mobile ad-hoc networks(MANET) are collected many number of nodes.In a mobile ad-hoc network(MANET) undertakes that all the mobile nodes unitewillingly in order to work accurately.This is a cost –intensive action for the collaboration and particular nodes can decline to cooperate then it will prominent to a selfish node behaviour.Thus, it will utterly affect the global network performance.The watchdogs are a well-known device used for identifying a selfish node.Theprocedure performed by watchdogs can fail,generating false positives and false negatives this may convince to wrong operation.Whenidentifying selfish node trusting on local watchdogs only can prime to poor performance,in terms of precision and speed.Thus we propose collaborative contact based watchdog(COCOWA) as a collaborative method based on the dispersion of selfish nodes responsiveness when a contact occurs,so the evidence will quickly circulated about selfish nodes. As shown in the paper,whenidentifying a selfish nodes this collaborative approach decreases the time and rises the precision.
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