A Survey of Protocols Enhancing the Security and Performance of AODV

MANET (Mobile Ad Hoc Networks) is a collection of mobile devices such as laptops, mobiles, etcetera that communicate with each other without an access point. Since the devices are on the move, the topology of the MANET keeps on changing. Due to various inherent as well as circumstantial issues of MANET, routing protocols lack in features such as Security, Performance and Power consumption. Ad-hoc On-Demand Distance Vector (AODV) Routing is a reactive routing protocol for MANET. The pitfall of this algorithm is that it wasn�t built keeping security in mind. Several modifications in the protocol have been proposed and implemented to improve its security and performance. This paper aims at presenting a comparative study of some of the approaches presented to enhance AODV�s security and performance. For example: Hashing, Key Management, AODV-AD, IMAODV, Zonal Routing (AODV).