Improved and Secured Routing using S-DSR in Mobile AD-HOC Networks

A Mobile Ad Hoc Network (MANET) is a collection of mobile nodes that can communicate with each other using multi hop wireless links without utilizing any fixed based-station infrastructure and centralized management. Each mobile node in the network acts as both a host generating flows or being destination of flows and a router forwarding flows directed to other nodes. With the rapid proliferation of wireless networks and mobile computing applications, Quality of Service (QOS) for mobile ad hoc networks (MANETs) has received increased attention. Security is a critical aspect of QOS provisioning in the MANET environment. Without protection from a security mechanism, attacks on QOS signaling system could result in QOS routing malfunction, interference of resource reservation, or even failure of QOS provision. Due to the characteristics of the MANETs, such as rapid topology change, limited communication and computation capacity, node failures and the conventional security measures cannot be applied and new security techniques are necessary. We proposed a new scheme that is Secured Dynamic Source Routing Protocol(S-DSR) which is the enhancement to the DSR. Which include secured route discovery and QOS.