T2AR: trust-aware ad-hoc routing protocol for MANET

Gayathri Dhananjayan, Janakiraman Subbiah
2016 SpringerPlus  
Mobile ad hoc network (MANET), a dynamic configured and infrastructure less architecture that contains operating nodes responsible for data transfer. The absence of centralized controller to determine the routing path initiates the cooperation mechanism among the nodes for data packets transfer. Generally, the nodes in the MANET are responsible for packet transfer and their join or leave the network without any constraints leads to an unpredictable MANET structure. Moreover, the absence of
more » ... alized administration in MANET requires nodes cooperation with the assumption of genuine and trustworthiness. Practically, these assumptions are violated due to the user Abstract Secure data transfer against the malicious attacks is an important issue in an infrastructure-less independent network called mobile ad-hoc network (MANET). Trust assurance between MANET nodes is the key parameter in the high-security provision under dynamic topology variations and open wireless constraints. But, the malicious behavior of nodes reduces the trust level of the nodes that leads to an insecure data delivery. The increase in malicious attacks causes the excessive energy consumption that leads to a reduction of network lifetime. The lack of positional information update of the nodes in ad-hoc on-demand vector (AODV) protocol during the connection establishment offers less trust level between the nodes. Hence, the trust rate computation using energy and mobility models and its update are the essential tasks for secure data delivery. This paper proposes a trust-aware ad-hoc routing (T2AR) protocol to improve the trust level between the nodes in MANET. The proposed method modifies the traditional AODV routing protocol with the constraints of trust rate, energy, mobility based malicious behavior prediction. The packet sequence ID matching from the log reports of neighbor nodes determine the trust rate that avoids the malicious report generation. Besides, the direct and indirect trust observation schemes utilization increases the trust level. Besides, the received signal strength indicator utilization determines the trusted node is within the communication range or not. The comparative analysis between the proposed T2AR with the existing methods such as TRUNCMAN, RBT, GR, FBR and DICOTIDS regarding the average end-to-end delay, throughput, false positives, packet delivery ratio shows the effectiveness of T2AR in the secure MANET environment design.
doi:10.1186/s40064-016-2667-6 pmid:27441127 pmcid:PMC4937011 fatcat:4cturmpodjh6ffifiidbdb63xm