Broadband network

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Antenna connector also known as Belling-Lee connector

A broadband network , also broadband cable network ( BK network), a data network , in which, in contrast to the baseband , the network digital user data is not transmitted directly, but one or more radio frequency carriers modulated be.

Different frequency ranges for transmitting and receiving data is used in general, the (by analog -working) converters are connected.

In the 1980s, broadband technology, using proven high-frequency components from cable television technology, made it possible to implement networks that could be more complex and spatially more extensive than was possible with baseband technology.

Due to the rapidly increasing speeds of baseband networks , the use of fiber optic cables and the availability of cheaper, faster network components such as switches , this technology is now out of date in the field of wired local networks and is practically no longer used. Applications of broadband technology that still exist today are Internet connections via TV cable networks and wireless networks .

With the advent of fast Internet connections such as DSL , the term broadband is meanwhile being used for all (subjectively) fast data connections.

Germany

According to the Frankfurter Rundschau present response of the Federal Ministry of Transport and digital infrastructure to Sven-Christian Kindler ( Bundestag spokesman of the Alliance 90 / The Greens Budgetary Policy) from March 2018, the deployment of broadband networks is only progressing slowly: Of the purpose by the federal government provided 1.56 billion euros were spent between 2015 and 2017, only 27.7 million (= 1.8%). Business Insider writes, citing the Federal Ministry of Finance, that of the 2.4 billion euros made available by the federal and state governments, only 27.2 million euros were spent on broadband expansion in 2019. The reason are bureaucratic hurdles. In an international comparison, Germany ranks 16th in the broadband expansion category according to a location index of 21 OECD countries.

In July 2020 it was reported that of the 11 billion euros in funding made available by the Federal Ministry of Transport for the expansion of broadband, around 570 million euros (since 2015) have been paid out to cities and municipalities. Of this, around 500 million euros were spent on specific construction measures. The rest (70 million euros) went to consulting firms.

Switzerland

In Switzerland, 30 percent of households are connected via fiber optics. The residents of larger cities have an advantage in terms of speed and the competition between providers.

See also

literature

  • Kurt Fischer: visual communication. Significance, technology and use of a new information medium, Springer Verlag, Berlin Heidelberg 1987, ISBN 978-3-540-16974-1
  • Wolfgang Kaiser: Interactive broadband communication. Forms of use and technology of systems with return channels, Springer Verlag, Berlin Heidelberg 1982, ISBN 978-3-540-11895-4
    • (Ed.): Glasfaser bis ins Haus / Fiber to the Home. Springer Verlag, Berlin Heidelberg 1990, ISBN 978-3-540-53724-3
  • Andres Keller: Broadband cables and access networks. Technical basics and standards, 2nd completely revised edition, Springer Verlag, Berlin Heidelberg 2011, ISBN 978-3-642-17630-2
  • Jan Knop (Ed.): Organization of data processing on the threshold of the 90s. Springer Verlag, Berlin Heidelberg 1989
  • Rainer Kuhlen, Gerhard Lehmbruch: Perspectives of the telecommunications policy. Westdeutscher Verlag GmbH, Opladen 1991, ISBN 978-3-531-12300-4

Web links

Wiktionary: Broadband network  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  1. ^ Badische Zeitung: Briefly reported - Economy - Badische Zeitung . ( badische-zeitung.de [accessed on March 10, 2018]).
  2. ^ Frankfurter Rundschau: Broadband expansion: Hardly any funding accessed . In: Frankfurter Rundschau . ( fr.de [accessed on March 10, 2018]).
  3. ↑ Philip Kaleta: Broadband expansion is stalling - but the federal and state governments only spent a fraction of the planned money in 2019. In: www.businessinsider.de. January 13, 2020, accessed on January 28, 2020 (German).
  4. ^ ZEW - Leibniz Center for European Economic Research, Mannheim: Country index for family businesses . Ed .: Family Business Foundation. 7th edition. Munich 2018, ISBN 978-3-942467-64-3 , pp. 66 .
  5. ↑ Jörg Breithut, DER SPIEGEL: Broadband expansion: Why the fast Internet is coming so slowly - DER SPIEGEL - Netzwelt. Retrieved July 28, 2020 .
  6. ↑ Broadband Internet: The Great Ditch. In: srf.ch. SRF, April 6, 2018, accessed November 19, 2019 .