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This paper presents an analytical model of a multi-layer (social-communication) network supported with on-the-fly learned and prior social-cognitive features. In this model, routing is formulated in a distributed setting where each node operating with local information only finds the next-hop node, among all social and mobile ad hoc network (MANET) communication link neighbors, whose normalized delay...
A Mobile Ad-hoc Network is a flexible wireless network. The nodes also function as routers which determine and propagate the routing tables amongst their neighbours to ensure a destination can be reached in the network. Without the restraint of physical links, mobility is common, these connections are not necessarily constant, with nodes free to either leave or join the network. This paper presents...
To design any wireless network, routing and protocol selection are of important consideration. In Mobile Adhoc Networks (MANET), routing protocols should have best throughput with minimum delay. So the performance in critical situations is the main concern of mobile networks. In this paper, wireless network of mobile nodes has been designed with defined parameters and the relative analysis is carried...
With the rising popularity of WirelessCommunication, Mobile Ad hoc Network (MANET) hasobtained its own place to be analyzed. The potentialapplications of MANET are growing tremendously due to itsrapid changing technology. Wireless network can beestablished in two modes. One is "Ad hoc mode" where thenodes are self-organized and another is "Infrastructuredmode" where the nodes are...
Wireless links in a Mobile Ad Hoc Network (MANET) is unreliable. So the links in between the nodes in a MANET breaks frequently. Mobility of nodes in a MANET increases the level of unreliability of the link between the nodes. Failure of a link also leads to complete route failure and affect the performance of MANET. So, there is a need to study the effect of mobility of nodes that causes a link break...
Vehicular Ad Hoc Networks (VANET) is a variant of Mobile Ad Hoc Networks (MANET) in which communication nodes are mainly vehicles. VANETs are heterogeneous networks which provide wireless communication among vehicles and vehicle to Road Side Units (RSU). Now-a-days, it has become an interesting area of research as it is intended to improve Intelligent Transport System (ITS). To exploit effective communication...
A Mobile ad-hoc network (MANET) is a temporary network set up by wireless mobile computers (or nodes) moving arbitrary in the places that have no network infrastructure. Due to this it is vulnerable to various kinds of security threats. Black hole attack is one of such threats. This paper lead emphasis on AODV routing protocol in MANET, along with various types of security attacks and security threats...
One of the main challenges in MANET is link breaks between the routes due to exhausted energy of nodes which have limited battery power. Every time a node transmits, receives or listens to a communication medium, it consumes energy. This paper focuses on creating an energy efficient method and a new technique was introduced to avoid link breaks before occurrence using preemptive local repair. The...
Mobile Ad-hoc Network (MANET) is infrastructure less networks which can be rapidly deployed. This property makes MANET suitable in disaster management and such emergency situations. To analyse such scenarios, the node movements have been modelled variously as random waypoint, random walk, Manhattan grid model etc. Reference Point Group Mobility (RPGM) model is used in situations where nodes move in...
In Mobile Ad hoc Networks (MANETs) nodes are free to move arbitrarily with different speeds, which makes the network topology change randomly and unpredictably. The mobility models give the movement pattern of the nodes w.r.t. their direction, location and speed over time. Some of these models depict real life scenarios. This paper analyses the energy consumption of our previous proposed energy efficient...
In recent years, Optimized Link State Routing (OLSR) protocol receives widespread attention due to its relatively less routing overheads and good routing performance. Since the mobility of nodes and flexibility of the topology are the principal features of ad hoc network, it is necessary to study the impact of these features on the performance of the network. In this paper, we propose a novel scheme...
This paper describes the need for a unified simulation framework which defines the simulation tools and configuration settings for researchers to perform comparative simulations and test the performance of security tools for the AODV MANET routing protocol. The key objectives of the proposed framework are to provide an unbiased, repeatable simulation environment which collects all important performance...
Mobile Ad hoc Networks (MANETs) are attracting attention for their potential use in several fields such as collaborative computing and multimedia communications. MANET nodes cooperate in an autonomous way by forwarding packets to each-other. Considering mobility of the terminals, the routes change dynamically so routing algorithms are very important for operation of MANETs. In this paper, we analyse...
Mobile Adhoc Network (MANET) is a collection of mobile nodes with dynamic topology. Such networks are of interest because they do not require any prior investment in fixed infrastructure. Instead, the network nodes agree to relay each other's packets and hence act as routers and automatically form their own cooperative infrastructure. The primary responsibility of a medium access control (MAC) protocol...
The present work is dedicated to study attacks and contremusure in MANET. After a short introduction to what MANETs are and network security we present a survey of various attacks in MANETs pertaining to fail routing protocols. We also present the different tools used by these attacks and the mechanisms used by the secured routing protocols to counter them. Our work ends with a proposal analytical...
Misbehaving nodes, including malicious and selfish ones, will disturb the cooperation among all wireless nodes in a mobile ad hoc network (MANET). Overhearing and reputation based cooperation schemes have been used to detect and isolate the misbehaving nodes as well as to force them to cooperate. These schemes worked well in previous publications. However, in this paper, we propose an on/off misbehaving...
In Mobile Ad Hoc Networks (MANET), routing messages are broadcast if a destination is needed or a route to destination is broken. In this paper, we introduce a route breakage probability model of a mobile ad hoc network in a motorway scenario. The model shows high probability of route breakage between vehicles driving in opposite and low probability of route breakage between vehicles driving in same...
In order to better address the problems like the inefficiency and large expense of various Ad Hoc routing protocols, this paper using OPNET simulation tool for the performance of DSR routing protocol simulation, build a small-scale (30 nodes), medium size (50 nodes) and large-scale (100 nodes) the complexity of the mobile ad hoc network model, the DSR routing algorithm, the average route discovery...
Mobile Ad Hoc networks (MANETs) is composed of mobile wireless nodes that are self-organized. The infrastructureless and dynamic nature of these networks demand very efficient routing strategies to be implemented in order to provide reliable end-to-end communication. Different routing protocols have been proposed in literature, but all of them are restricted to certain topology and scale assumptions...
A new route repair scheme based on link breaks is proposed to improve route repair efficiency for realistic ad hoc networks. Its design idea is as follows. Change of downstream node status is regarded as the basis of choosing route repair schemes by the repairing node. Causes of link breaks would be analyzed according to the change of node status. And different nodes are selected as the destinations...
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