A Secure and Energy Efficient Approach in Adhoc Networking

An Ad-Hoc network is collection of wireless mobile nodes forming a temporary network without the use of any established infrastructure or fixed centralized administration. In Ad-Hoc networks the communicating nodes do not depend on a fixed infrastructure, which sets a new challenge for the necessary security architecture which they apply. In such an environment, it is necessary for one mobile node to enlist the use of other nodes in forwarding a packet to the destination, due to the limited range of bandwidth and signals of each mobile node wireless transmission. Movement of the nodes results in a change in routing paths, which requires some secure mechanisms for determining new routing paths. The deployment of sensor networks in security and safely critical environments requires secure communication primitives. Sensor networks in hostile environment make it vulnerable to the battery power drainage attacks. It is impossible to replace or recharge the battery power of the sensor nodes. Among different types of security attacks, low power sensor nodes are immensely affected by the attacks which cause random drainage of the energy level of sensors, leading to death of the nodes. In this paper we present secure routing protocols in Ad-Hoc networks to overcome this type of attacks. Keywords— Ad-Hoc network, Routing, Power draining, Mobile nodes, Sensor nodes