An Effective Double Acknowldgement Scheme for Intrusion Detection in Mobile Ad Hoc Networks

The hegira to wireless network from wired network has been a worldwide trend in the past few years. The mobility and scalability brought by a wireless network made it possible in many application. Mobile Ad Hoc Network (MANET) is one of the most predominant and idiosyncratic applications. On the contrary to accustomed network architecture, MANET does not require a fixed network infrastructure, every single node works as Transceiver. Nodes communicate directly with each other when they are both within the same communication range. Otherwise , they reckon on their neighbours to relay messages. The Selfconfiguring ability of nodes in MANET made it popular among critical mission application like military use or emergency recovery. However, the open medium and wide distribution of nodes make MANET impuissant to rancorous attackers. In this case, it is pivotal to develop efficient encroachment-detection mechanisms to protect MANET from attacks. To adjust to such trend , we strongly believe that it is vital to address its potential security issues. In this paper, we propose and implement a new encroachment-detection system named Enhanced Adaptive ACKnowledgment (EAACK) specially designed for MANETSS . Compared to coeval approaches, EAACK demonstrates higher rancorous behaviour-detection ratesin certain circumsatances while does not greatly affect the network performances KeywordsEaack ,manet ,rancorous attacks, relay messages.