An Augmented Routing Algorithm for Trusted Detection of Link Failures in MANETs

Now a days, the communication between different nodes in a Mobile Ad hoc Network (MANET) is not guarded. Various encryption mechanisms are used to protect the communication between nodes. Link failures and packet dropping due to unfaithful nodes are becoming one of the main opposition for the trusted detection of malicious nodes. A failure can occur either due to channel errors or harmful nodes in network. These attacks may have the intention of modifying the routing protocol so that the data transmission through a specific node controlled by the attacker disturbs the network topology. Thus it deteriorates the performance of network. Mutual association of dropped packets is capitalized for synthesizing the suspicious nodes in MANET. The algorithm proposed is using an efficient cryptosystem with cipher text list validator scheme and a communal auditing scheme for the validation of certificate received from individual nodes. For constructing the framework, the proposed algorithm with five phases has a network setup phase, data routing phase, communal auditing phase, error node detection phase and a data receiver phase. This framework makes the MANET node build a safe routing topology by effectively judging the harmful nodes as well as the unfaithful information accepted from supplementary nodes.