please send the PPT presentation for Local broadcast algorithms in wireless ad hoc networks reducing the number of transmissions ....etc

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Abstract—There are two main approaches, static and dynamic, to broadcast algorithms in wireless ad hoc networks. In the static approach, local algorithms determine the status (forwarding/nonforwarding) of each node proactively based on local topology information and a globally known priority function. In this paper, we first show that local broadcast algorithms based on the static approach cannot achieve a good approximation factor to the optimum solution (an NP-hard problem). However, we show that a constant approximation factor is achievabl ....etc

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Abstract
A mobile ad hoc network is a mobile, multihop wireless network that does not rely on any preexisting infrastructure. Mobile ad hoc networks are characterized by dynamic topologies due to uncontrolled node mobility, limited and variable shared wireless channel bandwidth, and wireless devices constrained by battery power. One of the key challenges in such networks is to design dynamic routing protocols that are efficient, i.e., consume less overhead. The key characteristic of an on-demand protocol is the source-initia ....etc

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Seminar paper on local broadcast algoqithm in wireless adhoc network reducing the transmission ....etc

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please send me ppt of secure data collection in wireless sensor network using random routing algorithm
ppts for secure data collection in wireless sensor network using random routing algorith ....etc

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EFFICIENT MULTICAST ALGORITHMS FOR MULTI-RADIO WIRELESS AD HOC NETWORKS
INTRODUCTION
WIRELESS AD HOC NETWORKS
Wireless ad hoc networks consist of mobile nodes connecting over a shared wireless channel. A wireless ad hoc network is a decentralized wireless network. The network is ad hoc because it does not rely on a preexisting infrastructure.
MULTICAST
Multicast provide efficient data distribution among a group of nodes. In wireless ad hoc networks, multicast algorithms are designed to be energy effi ....etc

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Location Based Routing For Mobile Ad-Hoc Networks

An ad-hoc mobile network is a collection of mobile nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. The primary goal of such an ad-hoc network routing protocol is correct and efficient route establishment between a pair of nodes so that messages may be delivered in a timely manner. LAR is an on-demand protocol who is based on the DSR(Dynamic Source Routing). ....etc

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Presented By:PAR Guillermo BARRENETXEA
ingénieur de télécommunication, Universidad Publica de Navarra, Espagne
de nationalité espagnoleDISTRIBUTED ROUTING ALGORITHMS
FOR SENSOR NETWORKS

Abstract

Recent advances in wireless communications and computing technology are enabling the emergence of low-cost devices that incorporate sensing, processing, and communication functionalities. A large number of these devices are deployed in ....etc

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Mobile ad-hoc networks (MANETs) are becoming more popular due to their ability to model interesting aspects of real wireless networks. It is easy and cheap to build such networks because no other equipment or infrastructure are required besides the mobile devices. An MANET is composed of a set of nodes distributed in the plane. A signal sent by any node can be received by all the nodes within its transmission range, which is usually taken as one unit distance. One of the primary issues related to MANETs is the development of efficient routing a ....etc

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Summary: A mobile ad hoc network (MANET) is a collection of mobile nodes that forms a provisional network dynamically without the aid of any predetermined infrastructure. The salient nature of ad hoc networks renders them vulnerable to numerous types of security attacks. The dynamic feature of ad hoc networks makes enforcement of security become an extremely challenging issue. The main problem of many proposed routing protocols for ad hoc networks is that these protocols have critical susceptibilities to security attacks. Effective operation of ....etc

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