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There is an increasing interest in Mobile Ad hoc Networks (MANETs) for their potential use in several fields such as collaborative computing, tactical networks and multimedia communications. Thus, MANETs need to support multiple communication flows in the network, while guaranteeing a good performance. In this paper, we analyze the performance of a MANET by simulations, considering multiple flows...
As Mobile Ad hoc Networks (MANETs) are attracting attention for their potential use in several fields such as collaborative computing and multimedia communications, there is an increasing need to minimize the overhead introduced by routing protocols in the network. In this paper, we analyze the performance of a MANET by simulations, in terms of RREQ, RREP and RERR, considering Random Waypoint Mobility...
Topology change is the main factor that affects the network life time of Wireless Sensor Network (WSN) applications. In static WSN, the topology change is often caused by node failure which is due to energy depletion. However, in the Mobile WSN (MWSN), the main reason of the topology change is caused by the node movement. Since the mobile sensor nodes are limited in power supply and have a low radio...
DYMO as a routing protocol is newly intended for use by mobile nodes in wireless multihop network. It offers adaptation to changing network topology and determines unicast routes between nodes within the network on-demand. It is designed for MANET (Mobile Ad hoc Network) in small, medium, and large node populations. It handles all mobility ranges and various traffic patterns. It is simulated using...
Mobile ad hoc networks (MANETs) have been gaining tremendous attention owing to the advances in wireless technologies accompanied by many applications and implementations. However, there are still a number of issues in MANETs which require further investigations and efficient solutions. Out of these issues, broadcasting in MANETs has been a major problem for both industry and the research community...
Today wireless networks are becoming popular because of their “3 Any's”- Any person, Any where, Any time. Mobile ad-hoc networks (MANETs) is an emerging research area with practical application. Dynamic and reliable protocols are required in MANETs, as they have no infrastructure (base stations) and their Network topology changes frequently. There are different protocols for handling the routing problem...
After analyzing GPSR under traffic scenarios, we find its poor performance dues to extremely uneven distribution of vehicles. Considering the characteristics of the traffic scenario, we propose Improved GPSR using an electronic map. The simulation results show that Improved GPSR performs better than GPSR on Packet Delivery Ratio. Furthermore, we study the effect of stations switching on Packet Delivery...
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...
In this study, an improved cover angle-based broadcasting algorithms is proposed for mobile ad hoc networks (MANETs) to minimize redundancy, contention and collision known as broadcast storm problem in the literature. The propose technique uses only cover angle concept for rebroadcast decision without using neighbors knowledge informationpsilas or complex calculations. Through the analyses and extensive...
Mobile ad hoc networks (MANETs) rely on the cooperation of all participating nodes to provide the fundamental operations such as routing and data forwarding. However, misbehaving nodes may not follow the cooperation paradigm and cause a serious affect on network performance. Nodes misbehave because they are malicious, selfish or malfunctioning. In this paper, we present a simulation study of the effects...
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