Robust channel estimation scheme to the intrinsic interference of IOTA function in OFDM/OQAM-IOTA system

Seung Won Kang, Joo Heo, Kyung Hi Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

OFDM/OQAM-IOTA system requires the IOTA (Isotropie Orthogonal Transform Algorithm) function that has superior localization property in the time and frequency domain instead of the guard interval used in conventional OFDM/QAM system to be robust to multi-path channel. However, conventional channel estimation scheme is not valid for the OFDM/OQAM-IOTA system due to the intrinsic inter-symbol interferences of the IOTA function. In this paper, we derive the condition to make the intrinsic interferences of the IOTA function zero based on the proposed pilot structure for the perfect channel estimation. We also derive the preamble structure appropriate to the practical channel estimation for the OFDM/OQAM-IOTA system, and the simulation results show that the OFDM/OQAM-IOTA system with the proposed preamble structure performs better than the conventional OFDM system with the additional advantage of the increased transmission rate as the amount of the guard interval.

Original languageEnglish
Title of host publication2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Pages667-671
Number of pages5
DOIs
StatePublished - 2006
Event2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall - Montreal, QC, Canada
Duration: 25 Sep 200628 Sep 2006

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Country/TerritoryCanada
CityMontreal, QC
Period25/09/0628/09/06

Keywords

  • Channel estimation
  • IOTA
  • OFDM/OQAM
  • Preamble

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