{"id":80516,"date":"2019-07-22T16:08:44","date_gmt":"2019-07-22T16:08:44","guid":{"rendered":"https:\/\/\/la-technologie-de-reseau-6g-prend-forme\/"},"modified":"2019-07-22T16:08:44","modified_gmt":"2019-07-22T16:08:44","slug":"la-technologie-de-reseau-6g-prend-forme","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/la-technologie-de-reseau-6g-prend-forme\/","title":{"rendered":"La technologie de r\u00e9seau 6G prend forme"},"content":{"rendered":"

Par rapport \u00e0 la 5G, la 6G devrait permettre des vitesses de transmission nettement plus \u00e9lev\u00e9es, des temps de retard plus courts, une plus grande densit\u00e9 de composants et l’int\u00e9gration de l’intelligence artificielle. Sur le chemin de la sixi\u00e8me g\u00e9n\u00e9ration de radio mobile, de nombreux d\u00e9fis devront \u00eatre ma\u00eetris\u00e9s, \u00e0 la fois en ce qui concerne les composants individuels et leurs interactions. Par exemple, les r\u00e9seaux sans fil du futur consisteront en un grand nombre de petites cellules radio mobiles \u00e0 l’int\u00e9rieur desquelles de grandes quantit\u00e9s de donn\u00e9es peuvent \u00eatre transmises rapidement et de mani\u00e8re \u00e9conome en \u00e9nergie.<\/span><\/p>\n

\nLa connexion de ces cellules n\u00e9cessite des liaisons radio pouvant transmettre des dizaines, voire des centaines de gigabits par seconde sur un seul canal. Les fr\u00e9quences dans la gamme t\u00e9rahertz sont id\u00e9ales \u00e0 cet effet. Une autre t\u00e2che consiste \u00e0 connecter de mani\u00e8re transparente les liaisons de transmission sans fil aux r\u00e9seaux \u00e0 fibres optiques afin de combiner les avantages des deux technologies: capacit\u00e9 et fiabilit\u00e9 \u00e9lev\u00e9es, mobilit\u00e9 et flexibilit\u00e9.<\/span><\/p>\n

Des scientifiques de l’institut de technologie de Karlsruhe (KIT) et de l’institut Fraunhofer de physique des solides appliqu\u00e9e (IAF) \u00e0 Fribourg ont mis au point une approche prometteuse pour convertir les flux de donn\u00e9es de la transmission t\u00e9rahertz en transmission optique: dans leur publication dans la revue Nature Photonics, ils utilisent des modulateurs \u00e9lectro-optiques pour convertir un signal de donn\u00e9es t\u00e9rahertz directement en un signal optique afin de coupler l’antenne du r\u00e9cepteur directement \u00e0 une fibre de verre. <\/span> Dans leur exp\u00e9rience, les scientifiques utilisent une fr\u00e9quence porteuse d’environ 0,29 THz et obtiennent une vitesse de transmission de 50 Gbit \/ s. Le signal est alors directement coupl\u00e9 \u00e0 une fibre optique. Le modulateur est bas\u00e9 sur une nanostructure plasmonique et a une largeur de bande de plus de 0,36 t\u00e9rahertz. \u00ab\u00a0Les r\u00e9sultats montrent l’\u00e9norme potentiel des dispositifs nanophotoniques pour le traitement du signal ultra-rapide\u00a0\u00bb, commente le professeur Christian Koos du KIT.<\/span><\/p>\n

Le concept peut consid\u00e9rablement r\u00e9duire la complexit\u00e9 technique des futures stations de base de radio mobile et permettre des connexions t\u00e9rahertz avec des d\u00e9bits de donn\u00e9es extr\u00eamement \u00e9lev\u00e9s – plusieurs centaines de gigabits par seconde sont envisageables.<\/span><\/p>\n

\u00e0 lire \u00e9galement<\/p>\n

Analog Devices annonce une solution r\u00e9volutionnaire pour acc\u00e9l\u00e9rer l\u2019infrastructure r\u00e9seau sans fil 5G \u00e0 ondes millim\u00e9triques<\/a><\/p>\n

Blu Wireless l\u00e8ve $16m pour la conception d’IP de chips 5G<\/a><\/p>\n

Related articles:<\/p>\n

Creating broadband terahertz radiation from laser-generated microplasma in air<\/a><\/p>\n

Vodafone\/Continental demo 5G, AI, Netrounds for connected cars<\/a><\/p>\n

Semiconductor laser used as an RF transmitter promises very fast Wi-Fi<\/a><\/p>\n

UK universities open up the THz spectrum with \u00a36.5m project<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Alors que la construction de r\u00e9seaux de radio mobile 5G ne fait que commencer, les chercheurs travaillent d\u00e9j\u00e0 sur les technologies pour la 6G: pour connecter les cellules de radio mobile de la 6\u00e8me g\u00e9n\u00e9ration, des r\u00e9seaux de fibres optiques seront \u00e9galement n\u00e9cessaires, pour relier les cellules de radio au r\u00e9seau principal . Des chercheurs de l’institut de technologie de Karlsruhe (KIT) utilisent des modulateurs \u00e9lectro-optiques ultra-rapides pour convertir les signaux de donn\u00e9es d’une transmission t\u00e9rahertz en une transmission optique.<\/p>\n","protected":false},"author":22,"featured_media":80517,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[883],"tags":[919,913,916,915],"domains":[47],"ppma_author":[1149],"class_list":["post-80516","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologies","tag-iot-fr","tag-materials-processes-fr","tag-rf-transmission-fr","tag-wireless-communications-fr","domains-electronique-eci"],"acf":[],"yoast_head":"La technologie de r\u00e9seau 6G prend forme ...<\/title>\n<meta name=\"description\" content=\"Alors que la construction de r\u00e9seaux de radio mobile 5G ne fait que commencer, les chercheurs travaillent d\u00e9j\u00e0 sur les technologies pour la 6G: pour...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/80516\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La technologie de r\u00e9seau 6G prend forme\" \/>\n<meta property=\"og:description\" content=\"Alors que la construction de r\u00e9seaux de radio mobile 5G ne fait que commencer, les chercheurs travaillent d\u00e9j\u00e0 sur les technologies pour la 6G: pour connecter les cellules de radio mobile de la 6\u00e8me g\u00e9n\u00e9ration, des r\u00e9seaux de fibres optiques seront \u00e9galement n\u00e9cessaires, pour relier les cellules de radio au r\u00e9seau principal . Des chercheurs de l'institut de technologie de Karlsruhe (KIT) utilisent des modulateurs \u00e9lectro-optiques ultra-rapides pour convertir les signaux de donn\u00e9es d'une transmission t\u00e9rahertz en une transmission optique.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/80516\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2019-07-22T16:08:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/images\/01-picture-library\/ChristophHammerschmidt\/2019\/2019-07-July\/2019_095_technologien_fuer_die_sechste_mobilfunkgeneration-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1133\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta 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