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The route recovery algorithm is a crucial part of an ad hoc routing protocol. Designing an efficient and fast route recovery mechanism scheme without incurring extra overheads or delays to repair the broken link is a desirable goal for any routing protocol. The route recovery algorithm in reactive routing protocols like AODV occurs only after a link failure is detected. However, we propose a new route...
Characteristics of Mobile ad hoc networks are high mobility and frequent link failures that result in low throughput and high end-to-end delay. Multipath routing is an attractive option to reduce the number of route discoveries due to such broken paths so that alternate paths are available. Existing approaches to multipath routing employs pre-computed routes determined during phase of route discovery...
Wireless mesh networks(WMNs) have excellent communication capabilities and quality of easy deployment which increases popularity of WMNs. WMNs have an essential routing protocol which facilitates healing of link between Mesh Routers and the Mobile Nodes. Multiple interfaces of Mesh Routers is used for healing the path between the Mesh Routers and the Mobile Node in Mesh Network. Reactive protocols...
Today's generation has perceived wireless networking prospective applications in tremendously erratic and vibrant surroundings. Businesses as well as individuals pick wireless medium as their choice as it facilitates flexibility of location. It's obvious due to its convenience in terms of mobility, portability or even ease of installation at any preferred location. Mobile network has an intrinsic...
Vehicular ad hoc networks (VANETs) technology is growing very fast which provides the communication between moving vehicles on the road and the road side units without using any infrastructure. VANET is a subclass of MANET but with a different property of having vehicles as nodes. These networks are key component for ITS and self-organized in nature. Due to highly dynamic topology and frequent disconnection...
Mobile Ad hoc Network (MANET) is a collection of wireless mobile nodes which are autonomous, self organized and dynamic in nature. In this network due to mobility nodes are moving randomly, resulting in topology change. This topology change leads to frequent breakage of link. To repair the broken link AODV and DSR uses broadcasting mechanism. Broadcasting floods control packets. Flooding results in...
Route discovery and maintenance in Mobile Ad-hoc Network (MANET) is a problem of long standing interest. In ad-hoc networks the Ad-hoc on demand Distance Vector (AODV) protocol assumes that discovered route is optimal and transmits data on it for the entire data session, whereas due to dynamic topology nodes change position dynamically, the optimum route may change. Thus, node mobility may give rise...
The main idea behind this paper is to convert the on-demand single path routing protocol into proactive multipath routing protocol in terms of predicting the link failure by utilizing the link state prediction algorithm and in terms of creating multiple routes by utilizing on-demand multipath routing approach. Generally, the reactive routing protocols and proactive routing protocols are completely...
In the Ad Hoc network of AODV protocol, local node occurs when a node is too high too expensive death network energy consumption and serious problem, the problem this paper proposes a optimal design of AODV protocol. According to the routing cost design an on-demand more lulu by establishing and maintaining method. Simulation shows that this method improved the performance of AODV network, reduce...
Mobile Ad Hoc Networks are wireless networks which comprise of mobile nodes that communicate over wireless media. Frequent link failures may occur in these networks due to mobility, energy depletion of node, transmission interference. Link failure leads to disconnectivity among nodes in the network and hinders ongoing data transmission. Traditional routing protocols provide best effort service in...
Ad hoc On-demand Distance Vector (AODV) is an on demand routing protocol for delivering messages in a connected Mobile Ad hoc Network (MANET). AODV itself is an improved version of routing to maintain connection on demand and the route repair is the procedure that is called after the link expiration time. Connectivity in the network only exists when nodes are in radio range of each other. Routes can...
Mobility of nodes causes frequent link breaks and decreases the performance of routing protocols in Mobile Ad hoc Networks. Overhearing of packets can be used as a passive update mechanism for routing and alternate route tables. Hello messages are used to discover the new neighbor nodes and refresh the routing entries. Proper neighbor node selection by upstream nodes is an important issue during link...
Mobile ad-hoc network is a group of mobile nodes without infrastructure and self-configured in nature. Each node in MANET can move freely in Omni direction thus causes change in links to other devices frequently and they must forward packet transmission irrespective of its personal use; because of this a router is required. So the three prominent routing protocols in MANET such as DSR, AODV and DSDV...
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...
AODV is reactive routing protocol, used in MANET that establishes route between source and destination, whenever the source has data to send to the destination and there is not any route between them. Since nodes are moving route breaks because nodes are out of coverage of the neighboring nodes. After route break RERR messages are circulated to all the nodes, due to RERR messages traffic increases...
Assurance network technologies are necessary to realize trustable terminal/infrastructure service applications. Heterogeneous requirements are independently generated for assurance networks. In real situations, nodes are not uniformly distributed in networks, and it is assumed that there are dense and sparse areas. This difference of node densities will be serious in the large scale networks. When...
In case of high dynamic topology, reactive routing protocols provide quick convergence by faster route discoveries and route maintenance. Frequent broadcasts reduce routing efficiency in terms of broadcast cost; Bk, and expected time cost; E[t]. These costs are optimized using different mechanisms. So, we select three reactive routing protocols; Ad-hoc On-demand Distance Vector (AODV), Dynamic Source...
Ad hoc on Demand Distance Vector Routing Protocol (AODV) is an on-demand routing protocol for mobile ad hoc network with low power consumption as well as low-bandwidth overhead. The routing table in AODV, however, maintains only one route to the specified node. Therefore, the source node needs to re-initiate route discovery process whenever route failure occurs which leads to increase in routing overhead...
According to the topological feature of the power-line network, an improved On Demand Distance Vector (IPODV) routing is proposed to ensure an efficient data transmission. It is based on Ad hoc On-Demand Distance Vector (AODV) Routing which is a powerful routing protocol used in ad-hoc networks to deal with the fast changing logical topology. IPODV improves two modules of conventional AODV: neighbor...
In this paper, we have modeled the routing overhead generated by three reactive routing protocols; Ad-hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and DYnamic MANET On-deman (DYMO). Routing performed by reactive protocols consists of two phases; route discovery and route maintenance. Total cost paid by a protocol for efficient routing is sum of the cost paid in the form of energy...
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