Abstract
A Mobile Ad hoc Network (MANET) works on the assumption that mobile nodes are cooperative. On the other hand, in practical, it may not be possible due to selfish, malicious and misbehaving nodes present in the network. These nodes are capable of interrupting the communication process and there is a potential for serious performance degradation. To improve the performance of the network, detection and elimination of node misbehavior is paramount. This study presents a new technique called Random Dummy packet Distribution (RDD) approach that can be used as an extension scheme in Dynamic Source Routing (DSR) protocol to recognize and exclude misbehaving nodes. The key objective of RDD approach is mobile nodes generate dummy packets randomly and forward to the destination node. It receives the acknowledgement only if there is no misbehaving node available in its root path. If it found any critical path, a trust factor evaluation used to prove its misbehavior. Finally, Information about node misbehavior has shared with all other participants in the network. To reduce the network traffic and routing overhead, RDD uses the random dummy packets for routing acknowledgement. The results obtained from simulation proved that, the RDD approach can lessen the impact of misbehaving nodes and hence, improve the performance of routing protocol. RDD is an add-on method for routing protocol in order to eliminate the misbehaving nodes and the performance analysis proves the effectiveness of RDD approach over other schemes.
Highlights
Mobile ad hoc Network (MANET) (Chlamtac et al, 2003) is a self-organized wireless network comprising a group of mobile nodes that can move anywhere in the network
This study presents a new technique called Random Dummy packet Distribution (RDD) approach that can be used as an extension scheme in Dynamic Source Routing (DSR) protocol to recognize and exclude misbehaving nodes
We have presented a new method to detect misbehaving nodes in terms of malicious and selfish pursuit called Random Dummy packet Distribution strategy
Summary
Mobile ad hoc Network (MANET) (Chlamtac et al, 2003) is a self-organized wireless network comprising a group of mobile nodes that can move anywhere in the network. To maintain a cooperative MANET, all the participating nodes in the network should be friendly and willing to forward a message to other nodes without being selfish. Routing protocols designed for MANET is capable of managing dynamic network changes. Numerous routing protocols are available for MANET to manage dynamic network conditions. These are vulnerable to security threats and fail to succeed against attacks. Based on the level of non cooperation of a node, the degree of misbehavior has decided It seems that the selfish and malicious nodes result in much negative impact when compared to inactive nodes. A black hole attack is one of the malicious node behaviors that forward packets to the non existing destination node
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