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A New Security Mechanism for Mitigating Multiple Grayhole Attack in MANETS


Author(s):

Shardha Jain , Ambala College of Engineering & Applied Research, Devsthali, Ambala (Haryana); Ashok Kajal, Ashok Kajal; Shanu Malhotra, ISTK, Yamuna nagar (Haryana)

Keywords:

QoS, AODV, MANETs

Abstract:

Wireless Ad hoc networks are temporary networks because they are formed to fulfil a special purpose and cease to exist after fulfilling this purpose. Mobile devices might arbitrarily leave or join the network at any time, thus ad hoc networks have a dynamic infrastructure. The number of applications that involve wireless communications among mobile devices is rapidly growing. Many of these applications require the wireless network to be spontaneously formed by the participating mobile devices themselves. In wireless ad hoc networks, mobile nodes communicate with other nodes over wireless links, without the support of pre-existing infrastructures, which is an attractive form of peer communications for certain applications. Providing entity authentication and authenticated key exchange among nodes are both target objectives in securing ad hoc networks. With the emergence of more heterogeneous devices and diverse networks, it is difficult, if not impossible, to use a one-size-fits-all encryption algorithm that always has the best performance in such a dynamic environment. Network security plays a crucial role in this MANET and the traditional way of protecting the networks through firewalls and encryption software is no longer effective and sufficient. In this paper, We have studied the effect of gray hole attack in the Ad hoc Networks and proposed solution that tries to eliminate the gray hole effect by monitoring scheme to isolate malicious node from the network over AODV routing protocol through simulatuion using ns2 simulator.


Other Details:

Manuscript Id :IJSTEV2I2006
Published in :Volume : 2, Issue : 2
Publication Date: 01/09/2015
Page(s): 29-36
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