Backhaul

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Backhaul

With backhaul ( English backhaul ) is defined as the connection of an upstream, usually hierarchically subordinate network node to a centralized network node. The term only describes the function of the connection and does not make any statement about the technology used for implementation.

Examples

  • The widely distributed base stations ( BTS ) of a cellular network require a backhaul to the higher-level Base Station Controller (BSC), which is usually implemented as a radio link or a PCM30 cable.
  • The DSLAMs of a DSL provider that are located in local exchanges or cable distributors require a backhaul to the nearest ATM or Ethernet node.
  • WiFi - or WiMAX - APs in turn need a connection to the Internet.
  • In radio and television, backhaul is the term used to describe the connection between a reporter team on site with an OB van ( SNG vehicle) and the broadcast studio.

Transmission techniques used

Since the term backhaul only describes the logical function, all conceivable transmission technologies can be used. In practice, depending on the scenario, the following techniques are mainly used:

literature

  • Esa Metsälä, Juha Salmelin (Ed.): LTE Backhaul. Planning and Optimization, John Wiley & Sons, London 2016, ISBN 978-1-118-92464-8 .
  • Jean-Gabriel Rémy, Charlotte Letamendia: LTE Services. John Wiley & Sons, London 2014, ISBN 978-1-84821-787-4 .
  • Esa Metsälä, Juha Salmelin: Mobile Backhaul. John Wiley & Sons, London 2012, ISBN 978-1-119-97420-8 .
  • Ming Ding, Hanwen Luo: Multi-point Cooperative Communication Systems. Theory and Applications, Springer Verlag, Berlin / Heidelberg 2013, ISBN 978-3-642-34948-5 .

Web links