Robust pilot designs for consistent frequency offset estimation in OFDM systems

Kilbom Lee, Inkyu Lee

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

5 Citations (Scopus)


In this paper, we suggest novel criteria for pilot designs which minimize outliers for consistent carrier frequency offset (CFO) estimation in the orthogonal frequency division multiplexing (OFDM) systems. In order to derive the criteria, we first analyze the average pairwise error probability (PEP) of integer CFO (iCFO) estimation with consistent pilots in the OFDM systems where fadings among subcarriers are correlated, and address several issues based on the PEP analysis. Especially, the PEP reveals the relation between the channel and the minimum Hamming distance of the training sequence which is composed of consistent pilots. Based on the observations made from the PEP, we revise the conventional criteria to make them suitable for systems for correlated fading channels. Simulation results show that the sequence developed from the proposed criteria yields much reduced outliers compared to the conventional sequences for consistent CFO estimation.

Original languageEnglish
Title of host publication2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781424456383
Publication statusPublished - 2010
Event53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States
Duration: 2010 Dec 62010 Dec 10

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


Other53rd IEEE Global Communications Conference, GLOBECOM 2010
Country/TerritoryUnited States
CityMiami, FL

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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