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The Routing Protocol available in present generation of MANET focuses mainly on the performance and only a little capability against the malicious attacks. The foremost concerned security issue in MANET is to protect the network layer from malicious attacks, thereby identifying and preventing malicious nodes. The selection of optimal path for routing and the detection of security attacks cannot be...
Vehicular mobile communications are attracting much attention in wireless communications field. In this paper a new routing protocol for the reduction of interference level during mobile transmissions in VANET environment is proposed, considering the availability of different channels in the DSRC spectrum. The attention is mainly focused on the routing level of VANET and we propose an interference...
Movement of nodes in MANET makes the role of routing protocols tremendously important. Ad-hoc On Demand Distance Vector algorithm is a quick and efficient routing protocol for reduced broadcast. The dynamic and mobile nature of these networks faces frequent link failures resulting into broken routes. If the originating node is irresponsible to reinitiate route discovery, routing overhead may significantly...
In this work, we investigate how WSN performs in the case when sink node moves using different radio models and metrics. We consider routing efficiency, delay and number of received packet metrics to evaluate the performance of WSN using AODV routing protocol, lattice topology, and TwoRayGround and Shadowing radio models. We evaluate the performance of WSN by simulations. The performance evaluation...
The challenges of mobile ad hoc network are to maintain quality of services and performance. Many routing protocols like AODV discover routes whenever required by the source node and the benefit in doing so is that no prior knowledge of the topology is required. The AODV routing protocol is commonly and effectively used for mobile, ad-hoc nodes. So far, many maintenance strategies have been proposed...
The following topics are dealt with: image denoising; second generation current conveyor; distributed computing; software cost estimation; software defined radio; QoS based AODV routing protocol; 3D IC;MLP neural network; satellite communication; image encryption; MANET; wireless adhoc network; and CMOS full adder circuit.
Mobile Ad hoc network is a self-organizing, multi-hop and wireless network. This kind of networking is convenient to construct because it is free of time and space and it can be constructed without infrastructure. It has been widely used on many occasions such as danger zones, military regions, hospital and family. Due to the dynamic changes of topology, Ad hoc network has its particularity of routing...
We investigate the channel formation in a Mobile Ad Hoc Network (MANET) using the NS-2 simulator. The results show that the normalized node density is a good measure for predicting the performance of a MANET: for the normalized node density of 2.8 two nodes in a MANET running the AODV routing protocol stay connected 90% of the time. For the DSR protocol this is only 70%. The results may be used in...
Mobile ad hoc networks are special kind of wireless networks, there is no fixed structure in these networks but they have nodes movement ability that add their complexity. These networks are established without defined structure and mostly used in military services, rescue operation in damaged areas, conferences and etc. According to these networks characteristics, different routing protocols have...
In this paper, we consider the behavior of a wireless sensor network for TwoRayGround and Shadowing radio models for the case of mobile event. By means of simulations, we analyse the performance of AODV protocol. In the previous work, we considered that the event node is stationary in the observation field. In this work, we want to investigate how the sensor network performs in the case when the event...
Congestion is a major problem in mobile ad hoc network (MANET) which causes long delay and significant loss of data packets, and increases the routing overhead and battery power consumption. The shortest path route seldom offers the optimal route, especially when it traverses the congested area of the mobile network. This paper proposes a novel AODV with Sufficient Intermediary Bandwidth Aware (AODV+SIBA)...
In ad hoc mobile networks (MANET), the mobility and traffic patterns for each node are complicated factors that significantly affects the effectiveness and performance of ad hoc routing protocols. In this paper, we focused on the flooding performance of the AODV routing protocol using ns-2 network simulator under different communication distances, and extracted propagation property of RREQ and RREP...
A mobile ad hoc network (MANET) is an autonomous network that consists of mobile nodes that communicate with each other over wireless links. In the absence of a fixed infrastructure, nodes have to cooperate in order to provide the necessary network functionality. One of the principal routing protocols used in Ad hoc networks is AODV (Ad hoc on demand Distance Vector) protocol. The security of the...
Ad-hoc network is a self organizing and adaptive in nature. Since it is a dynamic multihop wireless network and established by a cluster of mobile nodes on a shared wireless channel. The transitive closure of the neighborhood of all the hosts or nodes in the set of mobiles under consideration forms network. Each node is potentially a router and it is possible to dynamically establish routes by changing...
A mobile ad hoc network (MANET) is an autonomous network that consists of mobile nodes that communicate with each other over wireless links. In the absence of a fixed infrastructure, nodes have to cooperate in order to provide the necessary network functionality. One of the principal routing protocols used in Ad hoc networks is AODV (Ad hoc on demand Distance Vector) protocol. The security of the...
As the non-stop development of wireless sensor network, its application was enormous. Control network based on forest anti-fire was one of the application fields. This paper made simulation on several scenarios in order to produce the best effect on data collecting and transmission, including different setting pattern of sensor nodes, the amount of nodes and their movement pattern. All of them were...
During the lifetime of a wireless ad hoc network using the AODV routing protocol, nodes are the sources and destinations of routing traffic. The routing traffic typically consists of routing requests, routing replies or routing errors. The routing events (requests, replies or errors) witnessed by a node could constitute an important source of information to improve the nodes routing decisions. In...
We present an improved mobile ad hoc network on-demand routing protocol which based on AODV by controlling the broadcasting of RREQ information. This protocol analysis the lifetime of node when implementing routing discovery, and avoiding the unnecessary information sending efficiently. By compare AODV with IAODV in the same scenario, the new protocol is much better than AODV in terms of packet delivery...
This paper presents evaluation and comparison of the CBR performance in different mobile scenarios generated by Random Waypoint (RW) model. To our knowledge, CBR performance in RW mobility is discussed. The impact of AODV and DSDV routing protocols on the CBR delay and drop rate performance is also discussed. Extensive simulation results and analysis showed that CBR has better performance over AODV...
The integration of wired and wireless networks is gaining popularity due to its usefulness and practical use. Internet connectivity would benefit users from mobility offered by mobile ad hoc networks and connectivity provided by the Internet. This integration however faces problem due to architectural differences in terms of infrastructure, topology, and mobility mechanisms. A number of integration...
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