Blind beamforming schemes in SC-FDMA systems with insufficient cyclic prefix and carrier frequency offset

Cheng Yi Liu, Yung Fang Chen, Chih Peng Li

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

In cyclic prefix (CP)-based transmission systems, if the time duration of the cyclic extension is shorter than the channel impulse response duration, system performance is degraded due to the introduction of intersymbol interference (ISI) and intercarrier interference (ICI). In this paper, we propose a blind beamforming algorithm for single-carrier frequency-division multiple-access (SC-FDMA) systems under insufficient CP scenarios. In addition, we also consider the effects of carrier frequency offsets (CFOs) in the processing schemes. The simulation results are presented by employing an SC-FDMA uplink signal model to illustrate the efficacy of the proposed algorithms.

Original languageEnglish
Article number4926206
Pages (from-to)4848-4859
Number of pages12
JournalIEEE Transactions on Vehicular Technology
Volume58
Issue number9
DOIs
StatePublished - Nov 2009

Keywords

  • Antenna arrays
  • Beamforming
  • Interference cancellation
  • Single-carrier frequency-division multiple access (SC-FDMA)

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