期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2015
卷号：80
期号：3
出版社：Journal of Theoretical and Applied
摘要：Due to its self-organizing nature the Mobile Ad hoc Networks (MANETs) are successfully able to provide a great channel for communication anywhere, anytime in absence of any centralized infrastructure and have a huge potential in actual applications like, in the military, rescue and commercial fields. However, due to its dynamic nature the network they are susceptible to different type of attacks which can hinder smooth functioning of the network. The standard routing protocols for MANETs do not perform well in the presence of nodes that intentionally drop data packets, one such malevolent behavior is launched by blackhole nodes. In this paper, we propose a new protocol Enhanced Secure Trusted AODV (ESTA) to cope with the problem of presence of such nodes in network. ESTA is extension of on the broadly used reactive protocol Ad hoc On-demand Distance Vector (AODV). The proposed protocol is multiple path approach combined with the use of trust to eliminate the corrupt paths. The NS-3 based simulation results present that the proposed protocol is efficiently able to thwart the effect of the blackhole attack in different scenarios and proves to increase the ratio of successfully delivered data packets significantly.
