Constant power allocation methods for SC-FDMA systems

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A simple suboptimal power allocation method is proposed for SC-FDMA systems. It is known that the performance of constant power-based allocation methods is close to that of optimal solutions. In this letter, by utilizing the waterfilling condition inequality derived for SCFDMA systems, a threshold is set to select subcarriers for loading constant power to these selected subcarriers. It offers competitive performance as confirmed by the simulation results.

Original languageEnglish
Pages (from-to)771-775
Number of pages5
JournalIEICE Transactions on Communications
Issue number3
StatePublished - 2010


  • Power allocation
  • Spectral efficiency
  • Waterfilling methods


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