The Mobile Ad Hoc Network is an infrastructure less, multihop ad hoc network because the intermediate nodes are used to transmit data from source to destination. This paper represents the simulation based study of network protocols for varying network load and mobility. In this paper three protocols AODV, DSR and DYMO are compared by using random waypoint mobility in few nodes with varying pack...

Mobile Ad-hoc Network (MANET) is a self-configuring wireless network of movable and independent nodes which operate without the support of any permanent infrastructure, hence MANET has dynamic topology. In MANET, each node forwards traffic unrelated to its own use. Despite the proliferation of MANET, it is prone to various attacks which include blackhole attack, grayhole attack, flooding attack...

S.KODIMALAR, S.R.NEVETHA, S.SUGANYA M.E (P.G Scholar), M.E (P.G Scholar) M.E (P.G Scholar), Department of Computer Science and Engineering St. Peter’s College of Engineering and Technology, Chennai – 600054, India --------------------------------------------------------------------------------------------------------------AbstractMobile ad hoc network is a self configuring infrastructure-less n...

TCP is a popular transport protocol used in present-day internet. When packet losses occur, TCP assumes that the packet losses are due to congestion, and responds by reducing its congestion window. When a TCP connection traverses a wireless link, a significant fraction of packet losses may occur due to transmission errors. TCP responds to such losses also by reducing congestion window. This res...

3GPP has introduced LTE Femtocells to manipulate the traffic for indoor users and to minimize the charge on the Macro cells. A key mechanism in the LTE traffic handling is the packet scheduler which is in charge of allocating resources to active flows in both the frequency and time dimension. So several scheduling algorithms need to be analyzed for femtocells networks. In this paper we introduc...

All-optical packet switching has been intensively investigated in recent years as an alternative to static, crossconnect based networks. Several switch architectures have been proposed, all of them using buffers made of fibre delay lines. This paper addresses the basic concepts of the packet switching in the optical domain and describes an analytical approach to evaluate the end-to-end performa...

Most existing routing protocols follow the shortest route for routing between sources to destination with minimum hop count. However the delay between two communicating nodes, energy consumption of nodes and network lifetime are never considered through this shortest route. It makes difficult to select a long lasting route between the nodes in network. To achieve optimal path, we have proposed ...

This paper investigates the packet loss effects on the VoIP Jitter, and presents a methodology for simulating packet loss on VoIP Jitter traces with self-similar characteristics. Because of its simplicity and effectiveness, the two state Markov model or Gilbert model is used to generate packet loss patterns. We proposed a new model for self-similar VoIP traffic, this model are based on voice tr...

Many emerging commercial and military applications require secure multicast communication in adhoc environments. Secure multicast communication in mobile adhoc networks is challenging due to its inherent characteristics of infrastructure-less architecture with lack of central authority, high packet loss rates and limited resources such as bandwidth, time and power. Hence key management is the f...