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black hole attack DETERENCE AND exposure ELUCIDATIONS on ADOV routing protocol in manet


Ms. A. Maria stella


MANET, AODV, Black hole Attack, NS2


A Mobile ad-hoc Network (MANET) is a self-cultivating infrastructure-less network. AODV (Ad-hoc On-demand Distance Vector) routing protocol is a loop free protocol used in ad-hoc networks. It is conceived such that it can self-start in an environment where all the nodes are mobile in nature. It can also contest a variety of network actions such as mobility, failure of links and much more. The ad-hoc network is swayable to black-hole attack. In a black hole attack, the router drops the packets instead broadcasting them and is a type of denial-of-service attack. The proposed work embellishes the AODV routing protocol for detecting a black hole attack more efficiently and hence reducing the delay and communication overhead in the MANET. In the proposed work, the actions of the source node is adapted by broadcasting the repeated RREQ which includes its own sequence number instead of destination sequence number and pre-process RREP () function is also added which makes it more secure than the existing solutions. For this the network simulation 2.35 is used. The results obtained from the proposed methodology shows that the end-to-end delay has been decreased; packet delivery ratio and throughput have been increased.

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Published in: Volume : 4, Issue : 9
Publication Date: 9/3/2018

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