Overview
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ABSTRACT
In this article, we will describe wireless sensor networks. We will see that they can be used in numerous applications with different expectations. We will detail some of the challenges they face and how research addresses them. We will see that for each challenge, several answers exist, that can be more or less effective depending on the environment in which the sensors are deployed.
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Read the articleAUTHOR
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Nathalie MITTON: Doctor - Research Director, Scientific Manager of the Inria FUN team
INTRODUCTION
Wireless sensor networks are gradually invading our daily lives, offering us new services every day. We find them in applications that affect us more and more. First used to monitor the environment and animals, they then provided support in first-aid and structure monitoring activities. Now, they're appearing in applications even closer to home to enhance our comfort, as when they guide us to available parking spaces or inform us about air quality.
But what exactly are they? And what can they be used for? That's what we'll be looking at in this article. We'll also look at the technological challenges they present, and how researchers are responding to them. We'll see how they discover each other, how they communicate and route information in a simple way, despite their limited computing capacity, memory space and reliance on batteries. We'll see that while many solutions have been found, many challenges remain.
Finally, we'll see that advances in science now make it possible to transform these small sensors into small robots, meaning that their mobility can be controlled. This opens the way to even more applications, such as exploring dangerous areas like the site of a nuclear power plant after a crack in a reactor. But it also brings with it new and ever more interesting challenges.
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KEYWORDS
| neighborhood discovery | routing | mobility | wireless sensor network
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Networks and Telecommunications
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Wireless sensor networks
Bibliography
- (1) - Harvard Sensor Network Lab - Volcano Monitoring. - http://fiji.eecs.harvard.edu/Volcano .
- (2) - KIM (S.), CULLER (D.), DEMMEL (J.) - Structural Health Monitoring...
Digital media
PDF-X Change Viewer Version 2.0 Tracker Software Products 2008.
Software tools
CISIA June 2000 Le Bayésien (version for Windows Vista), [Software] CISIA 1 avenue Herbillon, 94160 Saint-Mandé, France.
Websites Industry players
Manufacturers :
TexasInstrument :
Atmel:
Crossbow:
...Standards and norms
OSI :
BlueTooth or IEEE 802.15.1 :
http://www.ieee802.org/15/pub/TG1.html
ZigBee :
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