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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i need ppt related to cognitive radio network regarding it's basics architecture and sensing,decision ....etc

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See-Through Walls: Motion Tracking Using Variance-Based Radio Tomography Networks


INTRODUCTION

THIS paper explores a method for tracking the location of a
person or object behind walls, without the need for an
electronic device to be attached to the target. The technology
is an extension of “radio tomographic imaging” , which is
so-called because of its analogy to medical tomographic
imaging methods. We call this extension variance-based radio
....etc

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Tomographic imaging of electrically large objects in 2-D and 3-D environments using ultra-wideband (UWB) sensor arrays is described. Object cross-section electric properties is the most difficult part to model.Different industrial, medical, and security applications use microwave signals to penetrate and sense light opaque materials with reasonable spatial resolution.Increased level of spatial resolution and materialelectrical parameter measurement accuracy of Wideband signals, such as those produced with ultra-wideband (UWB) systems makes it ....etc

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RADIO TOMOGRAPHIC IMAGING

Submitted by

STEFFI KOSHY
(Reg No: 07412058)
S.H.M. ENGINEERING COLLEGE, KADAKKAL
under University of Kerala


INTRODUCTION

When an object moves into the area of a wireless network, links which pass through that object will experience shadowing losses. This paper explores in detail the use of shadowing losses on links between many pairs of nodes in a wireless network to image the attenuation of objects within the network area. We refer to this problem as ....etc

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i want a base paper on enhancing throughput efficiency of adhoc wireless networks using cognitive radio approach for seminar.i want ppt also ....etc

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Abstract
We investigate the problem of streaming multiplevideos over multi-hop cognitive radio (CR) networks.Fine-Granularity-Scalability (FGS) and Medium-Grain-Scalable(MGS) videos are adopted to accommodate the heterogeneityamong channel availabilities and dynamic network conditions.We obtain a mixed integer nonlinear programming (MINLP)problem formulation, with objectives to maximize the overallreceived video quality and to achieve fairness among the videosessions, while bounding the collision rate with primary usersunder the presen ....etc

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i want ppt of radio tomogerphic imaging... ....etc

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i want make a project on cognitive radio.
so please help in making it as soon as possible.

Abhishek Dwivedi ....etc

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Abstract
Two major factors that limit the throughput inmulti-hop wireless networks are the unreliability of wirelesstransmissions and co-channel interference. One promising techniquethat combats lossy wireless transmissions is opportunisticrouting (OR). OR involves multiple forwarding candidates torelay packets by taking advantage of the broadcast nature andspacial diversity of the wireless medium. Furthermore, recentadvances in multi-radio multi-channel transmission technologyallows more concurrent transmissions in the network, and sh ....etc

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