Sequence designs for robust consistent frequency-offset estimation in OFDM systems

Kilbom Lee, Sung Hyun Moon, Seehyun Kim, Inkyu Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this paper, we derive the average pairwise error probability (PEP) of an integer carrier frequency-offset (CFO) estimator with consistent pilots in orthogonal frequency-division multiplexing (OFDM) systems and address several issues based on PEP analysis. In particular, the relationship between the PEP and consistent pilots is established in terms of a diversity gain and a shift gain. Based on the observations, we present new criteria for sequence designs. Simulation results show that the sequence developed from these criteria yields much reduced outliers compared with conventional sequences for consistent CFO estimation in frequency-selective fading channels.

Original languageEnglish
Pages (from-to)1389-1394
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume62
Issue number3
DOIs
Publication statusPublished - 2013 Oct 14

Keywords

  • Carrier frequency offset (CFO)
  • Orthogonal frequency-division multiplexing (OFDM)
  • Pairwise error probability (PEP)
  • Synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Computer Networks and Communications
  • Applied Mathematics

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