Mechanism to Counteract Attacks in MANETS

Abstract

Mobile adhoc networks has been experiencing tremendous growth in the last two decades as it possess a routable networking environment over a link layer adhoc network. Data is very important in today’s communication scenario and protecting this data has always been challenging for researchers to think in the direction of data security. Transmission of data through a secured route in a network is very important in today’s digital world. There are a number of protocols being proposed in context of MANETS among which OLSR is one of the frequently used for its efficiency in path calculation and bandwidth utilization. Protocols are usually vulnerable to various attacks while routing. This paper mainly focuses on mitigating denial of service attack as well as the black hole attack using fictitious node mechanism. The issues of denial of service attack and black hole attack is addressed by using the proposed algorithm which reduces the time of transaction and increases packet delivery ratio with less energy utilization. In this way proposed solution increases the performance of the network.