The impact of frequency-flat fading on the spectral efficiency of CDMA

  title={The impact of frequency-flat fading on the spectral efficiency of CDMA},
  author={Shlomo Shamai and Sergio Verd{\'u}},
  journal={IEEE Trans. Information Theory},
The capacity of the randomly spread synchronous code-division multiple-access (CDMA) channel subject to frequency-flat fading is studied in the wide-band limit of large number of users. We find the spectral efficiency as a function of the number of users per chip, the distribution of the flat fading, and the signal-to-noise ratio (SNR), for the optimum receiver as well as linear receivers (single-user matched filter, decorrelator, and minimum mean-square errror (MMSE)). The potential… CONTINUE READING
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