Capacity of the Multicarrier Channel with FrequencySelective Nakagami Fading

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10 Scopus citations


Closed-loop power control providing maximum capacity of the multicarrier channel with frequency selective Nakagami fading is investigated. Use of the famous Gallager channel capacity (water-filling) theorem with the assumption of limited transmitter power and independent fading in partial channels leads to the algorithm for their optimal power loading. Analytical expressions for the capacity of the multicarrier channel as a function of the number of its subchannels and the fading parameters are derived for the cases of Optimal Power ^Distribution (OPD) and Equal Power Distribution (EPD). The dependence of the capacity gain on the OPD system order, the fading depth and the average SNR due the optimal power control is obtained. Comparison of the power efficiencies of the systems with OPD and EPD is presented.

Original languageEnglish
Pages (from-to)697-701
Number of pages5
JournalIEICE Transactions on Communications
Issue number3
StatePublished - 1 Jan 2000


  • Frequency-selective fading
  • Information capacity
  • Multicarrier modulation
  • Power control

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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