19-08-2013, 04:49 PM
Survivability Analysis of ad hoc network under attack
Survivability Analysis.pptx (Size: 1.46 MB / Downloads: 18)
INTRODUCTION
Ad hoc network does not have the centralized control
Ad hoc networks are more vulnerable to attacks
Internal attack and External attack
Data forwarding attack is internal attack
Survivability is the ability of network to provide essential services in presence of attacks
Data forwarding attack is dropping of packets by selfish nodes in network
Normal Data transfer using AODV and DSR protocols is analysed
AODV and DSR Protocol are enhanced for data forwarding attack
Data transfer using AODV and DSR protocol with data forwarding attack is analysed
Existing System
Capable of defending itself against malicious nodes and other different attacks
Not capable of defending itself against any selfish nodes which is already authenticated in network
Proposed System
Capable of defending itself against authenticated selfish nodes participating in the network
Done by Score based scheme to detect selfish nodes using logfile