Detection of Packet Dropping Attack Using Improved Acknowledgement Based Scheme in MANET
Mobile Ad hoc NETwork (MANET) is self configuring network
of mobile node connected by wireless links and considered as
network without infrastructure. Routing protocol plays a crucial
role for effective communication between mobile nodes and
operates on the basic assumption that nodes are fully cooperative.
Because of open structure and limited battery-based energy some
nodes (i.e. selfish or malicious) may not cooperate correctly.
After becoming part of active path, theses nodes start refusing to
forward or drop data packets thereby degrades the performance
of network. In this paper, a new reputation based approach is
proposed that deals with such routing misbehavior and consists
of detection and isolation of misbehaving nodes. Proposed
approach can be integrated on top of any source routing protocol
and based on sending acknowledgement packets and counting
the number of data packets of active path.
Keywords: Mobile Ad hoc Networks, Routing Misbehavior,
Non-cooperation, Selfish, Malicious, Reputation
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