Wireless transmission methods

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Wireless transmission methods are data transmission methods that use free space (air or vacuum ) as a transmission medium. No cable in the form of an electrical conductor ( wire ) or fiber optic cable is required for the transmission - especially the methods in the radio frequency range are therefore also referred to as wireless transmission methods .

The transmission takes place through directional or non-directional electromagnetic waves , whereby the range of the frequency band used can vary from a few Hertz ( low frequency ) to several hundred terahertz ( visible light ) depending on the application and the technology used.

Wireless transmission methods are used primarily in areas of application in which cable-based transmission technologies cannot be used or are too expensive, for example satellite communication or radio relay . Further applications can be found in entertainment electronics as well as in the industrial sector.

Well-known examples are Bluetooth , WLAN , ZigBee , NFC , Wibree or WiMAX in the radio frequency range as well as IrDA , optical radio relay (FSO) and LiFi in the infrared or optical frequency range.

See also

literature

  • Michael Jaekel, Karsten Bronnert: The digital evolution of modern large cities. Springer Fachmedien, Wiesbaden 2013, ISBN 978-3-658-00170-4 .
  • Carsten Harnisch: Network technology. 4th edition, Hüthing Verlagsgruppe Jehle Rehm GmbH, Heidelberg 2009, ISBN 978-3-8266-9418-9 .
  • Manfred Broy, Otto Spaniol (Hrsg.): VDI-Lexikon Informatik und Kommunikationstechnik. 2nd edition, Springer Verlag Berlin Heidelberg, Berlin Heidelberg 1999, ISBN 978-3-642-46846-9 .

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