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Cancellation for frequency offset in OFDM system based on TF-LMS algorithm

  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In an orthogonal frequency division multiplexing (OFDM) system, a time and frequency domain least mean square algorithm (TF-LMS) was proposed to cancel the frequency offset (FO). TF-LMS algorithm is composed of two stages. Firstly, time domain least mean square (TD-LMS) scheme was selected to pre-cancel the frequency offset in the time domain, and then the interference induced by residual frequency offset was eliminated by the frequency domain mean square (FD-LMS) scheme in frequency domain. The results of bit error rate (BER) and quadrature phase shift keying (QPSK) constellation figures show that the performance of the proposed suppression algorithm is excellent.

Original languageEnglish
Pages (from-to)1293-1299
Number of pages7
JournalJournal of Central South University of Technology (English Edition)
Volume17
Issue number6
DOIs
StatePublished - Dec 2010

Keywords

  • Cancellation
  • Frequency offset
  • Least mean square algorithm
  • Orthogonal frequency division multiplexing (OFDM)

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