{"id":1627,"date":"2016-03-07T17:20:00","date_gmt":"2016-03-07T22:20:00","guid":{"rendered":"https:\/\/www.precisionot.com\/?p=1627"},"modified":"2020-12-15T03:55:55","modified_gmt":"2020-12-15T08:55:55","slug":"telekommunikationsblog-ofdm-ermoglicht-ethernet-geschwindigkeiten-der-nachsten-generation","status":"publish","type":"post","link":"https:\/\/www.precisionot.com\/de\/telecommunications-blog-ofdm-powers-next-gen-ethernet-speeds\/","title":{"rendered":"OFDM erm\u00f6glicht Ethernet-Geschwindigkeiten der n\u00e4chsten Generation"},"content":{"rendered":"<p>Orthogonales Frequenzmultiplex (OFDM) ist seit langem ein fester Bestandteil in der Welt der drahtlosen Kommunikation. Angesichts des unaufh\u00f6rlichen, explosionsartigen Anstiegs der Nachfrage nach Datenkapazit\u00e4t ist OFDM nun bereit, die B\u00fchne zu betreten und die n\u00e4chste Generation optischer \u00dcbertragungsgeschwindigkeiten einzul\u00e4uten. K\u00fcrzlich f\u00fchrten Forscher eine Studie durch, bei der 560G erstmals erfolgreich \u00fcber zwei Kilometer lange Singlemode-Glasfaser \u00fcbertragen werden konnte. Um diese Geschwindigkeit zu erreichen, wurde 128-QAM-Modulation in einer Vierkanal-CWDM-Konfiguration (Grobwellenl\u00e4ngenmultiplex) verwendet, wobei jeder Kanal 140 G, also insgesamt 560 G, \u00fcbertr\u00e4gt. Dies ist eine bedeutende Entwicklung f\u00fcr die optische Netzwerkbranche, da sie das Potenzial hat, den Ansto\u00df f\u00fcr die 400G-Zertifizierung durch die IEEE 802.3 400G Ethernet Task Force zu geben. Dar\u00fcber hinaus k\u00f6nnte es das Wachstum des weiter ankurbeln\u00a0<a rel=\"noreferrer noopener\" href=\"https:\/\/www.precisionot.com\/de\/\" target=\"_blank\">optischer Transceiver<\/a>\u00a0Markt, der laut MarketersMEDIA.com Berichten zufolge auf $9 Milliarden anwachsen soll. Es ist kein Wunder, dass OFDM die Technologie der Wahl w\u00e4re, denn im Gegensatz zu \u00e4lteren Single-Carrier-Technologien erm\u00f6glicht die Multi-Carrier-Architektur die \u00dcbertragung vieler Datenstr\u00f6me \u00fcber ein einziges Glasfaserkabel. Dies wiederum sorgt f\u00fcr h\u00f6here Daten\u00fcbertragungsraten und eine gr\u00f6\u00dfere Datenkapazit\u00e4t; Zwei Funktionen, die f\u00fcr Rechenzentren und die Internet-Backbone-Konnektivit\u00e4t von Vorteil sein werden. Im Fall von Rechenzentren, in denen die Geschwindigkeit der Serverkonnektivit\u00e4t von entscheidender Bedeutung ist, stellt OFDM eine Herausforderung dar. Obwohl die F\u00e4higkeit, mehrere Datenstr\u00f6me zu \u00fcbertragen, die Geschwindigkeit und Kapazit\u00e4t erh\u00f6ht, kann diese F\u00e4higkeit aufgrund ihres hohen Spitzen-zu-Durchschnitts-Leistungsverh\u00e4ltnisses (PAPR) zu einer schlechten Verbindungsleistung f\u00fchren. Abhilfe schafft die Implementierung der diskreten Fourier-Transformation (DFT) in Verbindung mit einer Vorentzerrung, wodurch der PAPR erheblich reduziert wird. M\u00f6chten Sie mehr wissen?\u00a0<a href=\"https:\/\/www.precisionot.com\/de\/kontakt\/\" target=\"_blank\" rel=\"noreferrer noopener\">Kontaktiere uns<\/a>\u00a0f\u00fcr kompetente Beratung zu Ihrem aktuellen und zuk\u00fcnftigen Bedarf an optischer Ausr\u00fcstung.<\/p>","protected":false},"excerpt":{"rendered":"<p>Orthogonales Frequenzmultiplex (OFDM) ist seit langem ein fester Bestandteil in der Welt der drahtlosen Kommunikation.<\/p>","protected":false},"author":2,"featured_media":1628,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1627","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/posts\/1627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/comments?post=1627"}],"version-history":[{"count":0,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/posts\/1627\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/media\/1628"}],"wp:attachment":[{"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/media?parent=1627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/categories?post=1627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.precisionot.com\/de\/wp-json\/wp\/v2\/tags?post=1627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}