Suppression of multiple narrowband interferers in a spread-spectrum communication system

Catharina Carlemalm, H. Vincent Poor, Andrew Logothetis

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


We consider the problem of estimating and suppressing many unknown independent and time-varying interferers in a spread-spectrum communication system. The interferers are assumed to be present in a wide frequency range. In order to detect, estimate, and track the interference, we use a bank of hidden Markov model filters operating in the frequency domain. The hidden Markov model filters' outputs are then used to suppress the existing interference. The computational complexity of our scheme is only linear in the number of interferers. The simulation studies show that our proposed novel schemes adapt quickly in tracking the time-varying nature of the interference.

Original languageEnglish (US)
Pages (from-to)1365-1374
Number of pages10
JournalIEEE Journal on Selected Areas in Communications
Issue number8
StatePublished - Aug 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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