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This paper proposes a solution for throughput and stringent delay problems of VoIP in Ad-Hoc mode of IEEE 802.11 WLAN standards. This paper analyses the behaviour different codecs and schemes of WLAN running on VoIP traffic and draws a conclusion on the performance of network based on the criteria of different QOS parameters. Later the suitability of different routing protocols like AODV, DSR, OLSR...
In mobile ad hoc networks (MANETs), service composition faces severe challenges such as the lack of central server, node mobility and wireless network failure, which are usually not considered in web service composition on Internet. This paper designs and implements an on-demand service composition protocol for MANETs with consideration of quality of service (QoS). Based on the well-known Dynamic...
The effective provision of real-time, packet-based voice conversations over multi-hop wireless networks faces several stringent constraints not found in conventional packet-based networks. The wireless links in an ad hoc network are highly error prone and may go down frequently because of node mobility, interference, channel fading, and the lack of infrastructure, it is very difficult and challenging...
Nearly all performance analysis results for ad hoc routing protocols use a model in which each node in the network moves independently. In most real environments, however, very commonly a group or multiple groups move under the direction of a group leader or group leaders rather as independent individuals. This paper presents the performance analysis of routing protocols for a mobile ad hoc network...
Mobile ad hoc networks are a class of dynamic networks without any centralized administration. A major bottleneck in mobile ad hoc networks (MANETs) is the energy consumption since nodes are usually mobile and battery operated. To maximize the lifetime of mobile ad hoc networks (i.e., the lifetime of the nodes themselves) the power depletion of network must be evenly distributed, i.e., there must...
Ad hoc wireless networks are decentralized in nature and hence routing is a central challenge in this type of network. In this paper we describe a simulation model to simulate the routing protocols for wireless ad hoc networks and analyze the results from the simulation for performance evaluation. The simulation model incorporates the number of parameter values with changing environmental factors...
Mobile ad hoc networks (MANETs) are networks where the nodes are mobile, communicating via wireless link, operating without fixed infrastructure and each node act as a router (forwarding the in transit packets) as well as an end host. The movement of nodes is different in different scenario depending upon applications. Several routing protocols have been proposed by researchers for mobile ad hoc networks...
This paper describes the identification of potential problems with ad hoc routing protocol that contribute to the overall performance. Another major factor that contributes to routing protocol performance is when wireless nodes move out of coverage area of the other nodes and thus lose connection, or the opposite, where other wireless nodes join the network while on the move and require a dynamic...
In recent years, improved performance of wireless communication technology and lighter mobile terminals that have advanced functions have encouraged consideration of ad-hoc networks, which are temporary networks for the exchange of information among mobile wireless terminals. The features of ad-hoc networks include such advantages as not needing a network infrastructure and multi-hop communication...
Dynamic Source Routing (DSR) Protocol is a commonly applied reactive protocol for mobile ad hoc networks (MANETs). When the network size is increased, overhead is increased due to the source routing nature of DSR. Moreover, energy consumption of the nodes increases, as the nodes act as intermediate nodes for many source destination pairs. In order to improve the scalability of DSR, in this paper,...
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