DFT-based channel estimation and noise variance estimation techniques for single-carrier FDMA

G Huang, AR Nix, SMD Armour

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

16 Citations (Scopus)
882 Downloads (Pure)

Abstract

Practical frequency domain equalization (FDE) systems generally require knowledge of the channel and the noise variance to equalize the received signal in a frequency-selective fading channel. Accurate channel estimate and noise variance estimate are thus desirable to improve receiver performance. In this paper we investigate the performance of the denoise channel estimator and the approximate linear minimum mean square error (A-LMMSE) channel estimator with channel power delay profile (PDP) mismatch and noise variance estimation errors for a single carrier frequency division multiple access (SC-FDMA) system. A windowed DFT-based noise variance estimator is also presented in this paper to improve A-LMMSE channel estimation as well as to facilitate the MMSE-FDE design. Results show that the proposed noise variance estimator remains unbiased up to a SNR of 50dB.
Translated title of the contributionDFT-based channel estimation and noise variance estimation techniques for single-carrier FDMA
Original languageEnglish
Title of host publicationIEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)9781424435739
DOIs
Publication statusPublished - Sep 2010
Event72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 - Ottawa, Canada
Duration: 1 Sep 2010 → …

Publication series

Name
ISSN (Print)10903038

Conference

Conference72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
CountryCanada
CityOttawa
Period1/09/10 → …

Bibliographical note

Rose publication type: Conference contribution

Additional information: With accompanying conference presentation

Terms of use: Copyright © 2010 IEEE. Reprinted with permission, from - G Huang, AR Nix, SMD Armour; paper 'DFT-based channel estimation and noise variance estimation techniques for single-carrier FDMA'; VTC Fall 2010; September 2010.

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Keywords

  • channel estimation
  • DFT-based

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