Detection and Prevention of Black-Hole Attack in MANETS

In the last years mobile networking via smart phones and mobile telephones is widely realized as an infrastructure based networking. The provider grants an affordable and stable access to the Internet, which can be used by applications in the same way as it is used on stationary computers. However, many mobile devices support a variety of communication interfaces that are suitable for ad-hoc communication. Routing in ad hoc network is a great problematic, since a good routing protocol must ensure fast and efficient packet forwarding, which isn't evident in ad hoc networks. In literature there exists lot of routing protocols however they don't include all the aspects of ad hoc networks as mobility, device and medium constraints which make these protocols not efficient for some configuration and categories of ad hoc networks. Thus in this paper I propose an improvement of Dynamic Source Routing Protocol DSR in order to include some of the aspects of ad hoc networks as mobility and energy by proposing a new metric to evaluate route based on intermediate nodes weight computed by combining the stability and the battery power of nodes to choose the most stable and powered nodes for packet forwarding.