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In MANETs, flooding-based route discovery is usually preferred in order to set up the route with reliability between transmission pair. However, this approach may cause a serious contention in transmission between adjacent nodes and a considerable amount of control packets. In addition, most of ad hoc routing protocols establish the route with minimum hop count. Consequently, the performance of ad...
Recently vehicular safety applications have been introduced to improve traffic safety and efficiency. These applications are classified into two types: safety-oriented and non-safety applications. In this classification, safety-oriented applications are usually provided by means of vehicular multi-hop broadcasting in order to support reliable and fast alert message propagation to all surrounding vehicles...
In this paper, we studied the multi-hop broadcast algorithms for delivery of safety message in inter vehicle communication environment. In MANET environment, there are three multi-hop broadcasting schemes such as probability based methods, area based methods and topology based methods. We simulate MANET based multi-hop broadcasting schemes and evaluate the performance of our work in order to analyze...
Mobile ad hoc network consists of nodes with mobility thus resulting in frequent route breakage. Considering this problem, in this paper, we propose a novel routing algorithm which constrains the distance to next relay node to increase route life time in mobile ad hoc networks (MANET). By limiting the distance to next relay node, our algorithm lengthened route lifetime and enhanced the throughput...
In this paper, the link maintenance probability that the two relay nodes in mobile ad hoc networks (Manet) communicates for a certain time was derived according to the initial distance between two relay node and speed of each node. Based on the link maintenance probability we further derived the route maintenance probability in multi hop Manet when the distance between source and destination node...
In wireless ad hoc networks, nodes compromise to forward packets for each other to communicate beyond their transmission range. Therefore, networks are vulnerable to wormhole attacks launched through compromised nodes because malicious nodes can easily participate in the networks. In wormhole attacks, one malicious node tunnels packets from its location to the other malicious node. Such wormhole attacks...
In ad hoc wireless network, the position-based routing scheme has been proposed for the purpose of reducing control signaling overhead in networks and establishing the shortest, multi-hop routing path. In spite of several benefits, however, there are still some problems such as connectivity, reliability and security in the process of route discovery. In this paper, we propose an enhanced next hop...
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