Comparative Analysis of the Prevention Techniques of Denial of Service Attacks in Wireless Sensor Network

Abstract

Wireless ad-hoc sensor network is gaining popularity in all organization and it is basic means for communication. Wireless ad-hoc sensor network is vulnerable to Denial of Service (DOS) attack.DOS attack make the network resources is unavailable to users. In DOS attack it makes the node to consume more battery power and degrades the network performance. Various techniques are used for detection and prevention of DOS attack such as spread spectrum, packet leash, lightweight Secure Mechanism and energy weight monitoring system but DOS attack cannot fully prevented using this techniques. This paper reviews various types of DOS attacks and its Detection techniques.

Preventing Vampire Attack in Wireless Sensor Network by using Trust Model

“…Adversary attacks on the network and forms the loop as shown figure 1 [8]. Packet is send from source to node A. node A forward packet to node B. then node B sends packet to node c. node c forward packet to node D. then node D send packet to node E. Then node E instead of forwarding packet to Sink, it is Sends packet to node F. Then node F forward packet to node A and forms loops [8]. Then same path is repeated for many times and it causes more energy consumed by the nodes.…”

“…Then same path is repeated for many times and it causes more energy consumed by the nodes. so, because of these energy depletion performance of the networks degrades [8].…”

“…In Stretch attack, an adversary constructs artificially long routes and potentially traversing every node in the network [8].In these attack it increases packet path length.In figure 2 packet sending from source to sink. The shortest path for forwarding packet is source-node F-node E-Sink but here in Stretch attack, an adversary forward packet in longest path as shown by dark line in figure2 [8]. So it increases energy usage by the network.…”

“…Although network does not employ authentication or network use only end-to-end authentication. so here adversary can replace routes in any overhead packets [8].…”

“…There are various types of DOS attack such as jamming the signal, power exhaustion and flooding with useless traffic. In power exhaustion adversary is attacks on the node and consumes more battery power of the node [8]. Vampire attack is one of the type of power exhaustion attack .In carousel attack adversary sends the packet in routing loop and in stretch attack adversary sends the packet in longest possible path so that it consumes more battery power of the node [8].…”