OFDM transmitters: analog representation and DFT-based implementation

نویسندگان

  • Yuan-Pei Lin
  • See-May Phoong
چکیده

The implementation of OFDM transmitters typically consists of a discrete DFT matrix and a digital-to-analog (DAC) converter. Many existing results on the analysis of OFDM systems, e.g., spectral roll-off, are based on a convenient analog representation. In this paper, we show that the analog representation and the DFT-based OFDM transmitters are equivalent only in special cases. Using the analog system to analyze the DFT-based OFDM system may not be valid if there is no equivalent analog representation.

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عنوان ژورنال:
  • IEEE Trans. Signal Processing

دوره 51  شماره 

صفحات  -

تاریخ انتشار 2003