Spectral efficiency of multicarrier CDMA

Antonia M. Tulino, Linbo Li, Sergio Verdú

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


We analyze the spectral efficiency (sum-rate per sub-carrier) of randomly spread synchronous multicarrier code-division multiple access (MC-CDMA) subject to frequency-selective fading in the asymptotic regime of number of users and bandwidth going to infinity with a constant ratio. Both uplink and downlink are considered, either conditioned on the subcarrier fading coefficients (for nonergodic channels) or unconditioned thereon (for ergodic channels). The following receivers are analyzed: a) jointly optimum receiver, b) linear minimum mean-square error (MMSE) receiver, c) decorrelator, and d) single-user matched filter.

Original languageEnglish (US)
Pages (from-to)479-505
Number of pages27
JournalIEEE Transactions on Information Theory
Issue number2
StatePublished - Feb 2005

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences


  • Channel capacity
  • Fading channels
  • Multicarrier code-division multiple access (MC-CDMA)
  • Multiuser information theory
  • Random matrix theory


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