S. Shanmugavel

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Mobile ad hoc network is an autonomous system of mobile nodes characterized by wireless links. The major challenge in ad hoc networks lies in adapting multicast communication to environments, where mobility is unlimited and failures are frequent. Such problems increase the delays and decrease the throughput. To meet these challenges, to provide QoS, and(More)
Ad hoc networks are frequently established in insecure environments and hence become susceptible to attacks. A number of recently proposed secure routing protocols entail a number of prerequisites during both the network establishment and operation phases as they employ cryptographic algorithms. In contrast, trust-based routing protocols locate trusted(More)
Reducing power consumption and increasing battery life of nodes in an ad hoc network requires an integrated power control and routing strategy. The power control is achieved by new route selection mechanisms for MANET routing protocols, which we call energy-based time delay routing (EBTDR) and highest energy routing (HER). These algorithms try to increase(More)
Mobile Ad-hoc network is an autonomous system of mobile wireless nodes connected dynamically without any preexisting infrastructure. Here, since the nodes are mobile, the network topology changes rapidly and unpredictably over time. The QoS routing has challenging problems due to the network's dynamic topology. The multi hop wireless forwarding of packets,(More)
Recently mobile ad-hoc networks (MANET) have found widespread applications. In this infrastructure-less networks the routes have to be refreshed often due to mobility of nodes which also acting as routers. Many ad-hoc routing protocols have been proposed, of which on-demand routing protocols are very popular. To meet the scarce of network resources, the(More)
The success of next generation wireless networks will rely much on advanced mechanisms for seamless mobility support among emerging heterogeneous technologies. Currently, mobile IP is the most promising solution for mobility management in the Internet. Several IP micro mobility approaches have been proposed to enhance the performance of Mobile IP which(More)
Heterogeneously powered ad-hoc networks are characterized by asymmetry links. The low power nodes are able to receive from high power nodes but not vice versa. This poses challenges to routing discovery processes of routing protocols, those dependent on symmetry links. In this paper, we propose a cross layer design that effectively improves route discovery(More)
In mobile ad-hoc network, the mobility of nodes and the error prone nature of the wireless medium pose many challenges and packet losses. Here, since the nodes are mobile, the network topology changes rapidly and unpredictably over time and produce different queuing behaviour. Hence, a scheduling algorithm to schedule the packets based on their respective(More)