DSSS with ISAKMP Key Management Protocol to Secure Physical Layer for Mobile Adhoc Network
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Date
2012
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Abstract
The wireless and dynamic nature of mobile ad hoc networks (MANETs) leaves them more vulnerable to
security attacks than their wired counterparts. The nodes act both as routers and as communication end
points. This makes the physical layer more prone to security attacks. The MANET physical layer is
challenging to DoS attack'and also some passive attacks. The physical layer protocol in MANETs is
responsible for bit-level transmission between network nodes. The proposed model combines spread
spectrum technology Direct Sequence Spread Spectrum (DSSS) with key management technique ISAKMP
to defend against signal jamming denial-of-service attacks in physical layer of MANET.DSSS with
ISAKMP is found to be a good security solution even with its known security problems. The simulation is
done using network simulator qualnet 5.0 for different number of mobile nodes. The proposed model has
shown improved results in terms of Average throughput. Average end to end delay, Average packet
delivery ratio, and Average Jitter.