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<title><string language="fre"><![CDATA[04 - Advanced Spreading Codes (CDMA Technology)]]></string></title>
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<string language="fre"><![CDATA[Résumé : 
Les communications
par étalement de spectre constituent une réponse efficace aux problèmes de
trajets multiples propres à la télécommunication mobile. Plus généralement, ce
type de communications est particulièrement adapté aux communications à faible
rapport signal sur bruit. Parmi les différentes techniques d’étalement de
spectre, ce cours s’intéresse plus particulièrement à celle de l’étalement de
spectre par codage à l’aide de séquences pseudo-aléatoires, qualifié de codage
CDMA pour ‘Code Division Multiple Access’. Cette technique a conduit à un grand
nombre d’applications dans le domaine de la géolocalisation (système GPS ou
Galileo), des télécommunications sans fils (UMTS WLAN, Bluetooth) mais aussi
dans le domaine des réseaux de capteurs.
Ce cours est le
fruit d’une collaboration entre Prof. Wolfgang Skupin de l’HTWG Konstanz
(University of Applied Sciences, Konstanz, Allemagne) et Prof. Stéphane Flament
de l’ENSICAEN (Grande Ecole, Caen, France).
Abstract :
Spread Spectrum Communications are very well
suited to mobile communications where multipath propagation leads to strong
fading. More generally, this kind of communication technique is well suited to
low signal to noise ratio communication channels.  This lecture focuses on spread spectrum
communications called ‘CDMA’, which stands for ‘Code Division Multiple Access’,
where spreading is obtained by coding data with pseudo random binary sequence.
CDMA technology is used in many applications such as geolocalisation (GPS,
Gallileo), wireless communications (UMTS, WLAN, Bluetooth) or sensors network. 
This lecture was designed together with Pr. W.
Skupin from HTWG Konstanz (University of Applied Sciences, Konstanz, Germany)
and Pr. S.Flament from ENSICAEN (‘Grande
Ecole’, Caen, FRANCE).
Prof. Wolfgang Skupin
Pr. Skupin is
Professor at the University of Applied Sciences of Konstanz, HTWG (Germany) in
the field of Telecommunications.  He is
an expert in CDMA technology and was thus involved in the European GALILEO
program aiming at providing a high-precision positioning system upon which
European nations could rely independently from any other similar system like
the US GPS, the Russian GLOSNASS and the Chinese  Compass.
Prof. 
Stéphane Flament
Pr. Flament is Professor
at the National Graduate School  of Engineering of Caen, ENSICAEN (France), in
the field of Electronics. His research domains deal with low noise
instrumentation and applied physics of magnetic sensors and devices (https://www.greyc.fr/user/99).]]></string></description>
<keyword><string language="fre"><![CDATA[cdma]]></string></keyword><keyword><string language="fre"><![CDATA[Gold Codes]]></string></keyword><keyword><string language="fre"><![CDATA[Walsh Functions]]></string></keyword><keyword><string language="fre"><![CDATA[Kasami Codes]]></string></keyword><keyword><string language="fre"><![CDATA[Choice of Codes]]></string></keyword>
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NOTE:Pr. Skupin is Professor at the University of Applied Sciences of Konstanz, HTWG (Germany) in the field of Telecommunications.  He is an expert in CDMA technology and was thus involved in the European GALILEO program aiming at providing a high-precision positioning system upon which European nations could rely independently from any other similar system like the US GPS, the Russian GLOSNASS and the Chinese  Compass. 
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<date><dateTime>2014-10-07</dateTime></date>
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ROLE:author
NOTE:Pr. Flament is Professor at the National Graduate School  of Engineering of Caen, ENSICAEN (France), in the field of Electronics. His research domains deal with low noise instrumentation and applied physics of magnetic sensors and devices (https://www.greyc.fr/user/99). 
TZ:+0200
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