Frequency error correction for OFDM based multicarrier systems and performance analysis

Sithamparanathan Kandeepan*, Sam Reisenfeld

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

3 Citations (Scopus)

Abstract

The presence of frequency offsets in the received signal for an orthogonal frequency division multiplexing (OFDM) based multicarrier system leads to inter carrier interferences (ICI). The degradation in the performance of an OFDM system is severe when there is frequency error, which is caused by the loss of orthogonality in the received carrier frequencies. Here, we look into the correction of frequency errors in the received OFDM signal, by means of a correlator based maximum likelihood (ML) frequency estimator. We analyse the system performance of the frequency corrected OFDM system and study the statistical nature of the frequency uncertainty in the receiver when the ML frequency estimator is used. The statistical distribution of the estimates made by the receiver is also determined.

Original languageEnglish
Title of host publication2005 Fifth International Conference on Information, Communications and Signal Processing
Subtitle of host publicationICICS 2005: 6-9 December 2005, Bangkok, Thailand
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages268-272
Number of pages5
ISBN (Print)0780392833, 9780780392830
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event2005 Fifth International Conference on Information, Communications and Signal Processing - Bangkok, Thailand
Duration: 6 Dec 20059 Dec 2005

Other

Other2005 Fifth International Conference on Information, Communications and Signal Processing
CountryThailand
CityBangkok
Period6/12/059/12/05

Keywords

  • Frequency estimation
  • Frequency estimation for OFDM
  • Frequency synchronization
  • Maximum likelihood frequency estimator
  • OFDM

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