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Mobile Ad Hoc NETworks (MANETs) are the set of mobile hosts operating without the aid of the established infrastructure of centralized administration. MANET is characterized by limited resources such as bandwidth, battery power, storage space and node mobility. The underlying assumption is that the intermediate nodes cooperate in forwarding packets. Due to lack of infrastructure, the network can be easily affected by several attacks. They are mostly vulnerable to the Denial of Service (DoS) attack because of its features. For this, the authors have developed the new algorithm called reputation based system. Here, each node would evaluate nodes recommendation, route ID and threshold packet dropping ratio.
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