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

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T. Venkat Narayana Rao
Rajeshwar Moghekar,Vani G, S. Janardhan Rao


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. In this paper we propose 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 and
achieves higher performance.

Keywords: Quality of service (QOS), MANET, DSR, Trust, Enhanced, Message Authentication Code (MAC).


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