Jamming attack in MANET: A Selected Review

--A MANET is a collection of nodes that do not rely on a predefined infrastructure to keep the network connected Wireless sensor networks are being used in many applications like health monitoring, military purposes, and home automation. These networks are equipped with large number of sensors, which are spatially distributed. Wireless sensor networks are widely used in remote areas, defense and military scenarios. Hence, their security is critical issue. They are more vulnerable to attacks than wired networks. Wireless sensor networks suffer from various active and passive attacks. This paper reviews security issues on Ad-hoc network and Ad hoc On-Demand Distance Vector (AODV) protocol. In Ad-hoc network, active attack i.e. DDOS, black hole attack, wormhole attack, jamming attack can easily occur. These attacks can decrease the performance of the communications protocol. The given paper gives the comprehensive review of Jamming attack and its features in different techniques. Every technique has its own merits and demerits. We study various techniques related to Jamming attack and here presents few basic techniques for review. Keywords---Mobile Ad Hoc Network; AODV Protocol; Jamming Attack; Wireless sensor networks