Enhancement of Security in AODV Routing Protocol Using Node Trust Path Trust Secure AODV (NTPTSAODV) for Mobile Adhoc Network (MANET)

Mobile ad hoc network (MANET) is a collection of wireless mobile devices that can communicate with each other and forming a temporary network without requiring any fixed infrastructure or centralized administration. The nodes of MANETs are always susceptible to compromise. In such scenario, designing a secure routing protocol has been a major challenge for last many years. In this paper, we propose Node Trust Path Trust Secure AODV routing protocol (NTPTSAODV) to enhance the security for MANETs through a new approach 2-tier trust based model for Intrusion Detections (IDs) techniques. To implement NTPTSAODV, Ad hoc On-demand Distance Vector (AODV) routing protocol has been modified for making it secure and thwart black hole attacks. In order to make result more accurate, performance of NTPTSAODV, AODV and black hole detection AODV (BDAODV) was tested in presence of multiple attacker cases and after observations of performance analysis, it can be concluded that NTPTSAODV is capable of delivering packets even in the presence of malicious nodes in the network. To evaluate the network performance, packet delivery ratio (PDR), Average End-to-End Delay (AED), Average Throughput (AT) and routing overhead are considered criteria.