Edholm's law

Edholm's law, proposed by and named after Phil Edholm, refers to the observation that the three categories of telecommunication,[1] namely wireless (mobile), nomadic (wireless without mobility) and wired networks (fixed), are in lockstep and gradually converging.[2] Edholm's law also holds that data rates for these telecommunications categories increase on similar exponential curves, with the slower rates trailing the faster ones by a predictable time lag.[3] Edholm's law predicts that the bandwidth and data rates double every 18 months, which has proven to be true since the 1970s.[1][4] The trend is evident in the cases of Internet,[1] cellular (mobile), wireless LAN and wireless personal area networks.[4]

  1. ^ a b c Cherry, Steven (2004). "Edholm's law of bandwidth". IEEE Spectrum. 41 (7): 58–60. doi:10.1109/MSPEC.2004.1309810. S2CID 27580722.
  2. ^ Esmailzadeh, Riaz (2007). Broadband Wireless Communications Business: An Introduction to the Costs and Benefits of New Technologies. West Sussex: John Wiley & Sons, Ltd. pp. 10. ISBN 9780470013113.
  3. ^ Webb, William (2007). Wireless Communications: The Future. Hoboken, NJ: John Wiley & Sons, Ltd. p. 67. ISBN 9780470033128.
  4. ^ a b Deng, Wei; Mahmoudi, Reza; van Roermund, Arthur (2012). Time Multiplexed Beam-Forming with Space-Frequency Transformation. New York: Springer. p. 1. ISBN 9781461450450.