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Propagation structure has a vital role in designing the Mobile ad-hoc networks (MANETs). Propagation structure is employed for computing signal strength about each data packet at the destination. Propagation Structures in MANETs are characterized into three categories such as Free Space structure, Two-Ray Ground structure and Shadowing structure. Here in this paper, the effect of Two-Ray Ground propagation...
MANETs are self-configuring, self-healing, and self-optimized network of devices which are mobile in nature connected by a wireless medium. All mobile nodes in “MANET” are mobile and therefore the nodes change their links with other devices very frequently. Some receiving nodes in the network maybe moved out-of-range of the sender node, therefore the data packets hops through intermediate nodes. The...
Adhoc networking field has been interestingly accepted by the research society due to its surprising features. Almost every aspect of the network has been explored by the researchers at some level of detail. A lot of analyses/ surveys have been presented in the literature for showing the performance of well accepted adhoc routing protocols viz. AODV, DSR, AOMDV, CBRP etc. This paper presents some...
A Mobile ad hoc network consists of wireless mobile nodes those who have ability to communicate mutually while there is no role of infrastructure network or any centralized control. In order to forward packets from one node to another, a mobile node works as host as well as router. Routing protocols play a relevant role in functioning of mobile ad-hoc networks. Many routing protocols have been proposed...
A MANET is a infrastructure-less and auto configurable network of mobile nodes which are connected without wires. As per proposal of this paper, the communication in a MANET works on set of random keys called KEY1=X+KEY0, KEY2=X+KEY1, KEY3=X+KEY2…KEYN=X+KEYN−1 to establish the connection between nodes and applies to validate the packets. Since there could be a issue of keys length, hence we can enforce...
An autonomous collection of the mobile nodes communicating with each other with the help of wireless links either in a direct or indirect manner or rely on other mobile nodes is referred as MANET. The routing protocols in MANET are designed on the basis of the assumption that all the participating nodes co-operate with each other. Due to certain issues like open structure and limited energy supply,...
Mobile Ad Hoc Networks (MANETs) are increasingly being used in various applications for civilian, commercial, and military uses. However, unique characteristics of MANETs introduce several challenges such as routing and mobility management. Nodes frequent movements make routing more difficult due to frequent topology changes. Dynamic Source Routing (DSR) routing protocol is among the common routing...
Mobile Ad hoc Networks (MANETs) are self-organized infrastructure-less networks, including wireless mobile systems, which have been thoroughly studied and widely used in a variety of applications. Routing mechanisms in MANETs are considered as a major research challenge due to the nature of the network topology, where the nodes are able to move in any direction in the network showing unpredictable...
Vehicular Ad hoc Network provides a technology for communicating in between different vehicles. In this paper the performance of vehicular ad hoc network is evaluated using various QOS metrics, which affects the performance of network communication, also analyze the QoS performance with metrics routing overhead, packet delivery ratio and average delay with 1024 bytes packets for unicast routing protocols(Dynamic...
In Mobile Ad Hoc Networks (MANET), delays and bandwidth limitations of the wireless network system adversely affect the performance of the Voice over IP (VoIP). The calls setup time and the voice Quality of service (QoS) of VoIP calls depend on the routing protocol, the mobility model, and the number of hops between the call parties. Number of research efforts used to study the performance metrics...
A Mobile ad hoc network is a collection of mobile nodes connected through wireless links forming an temporary network without fixed topology, centralized access point, infrastructure. In such a network, each node can act as a router and host simultaneously, it can move out or join in the network freely as required. Various routing protocols have been discussed so far in this paper a brief comparison...
The aim of this paper is to present a novel multipath routing approach in MANETs as new extensions to AODV, a well-known traditional reactive routing protocol. The approach is called Threshold efficient Routes in multipath AODV (TRAODV) which is a link-disjoint multipath extension that tries to optimise routing delay overhead in the route discovery process of traditional AODV. The optimisation in...
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