LS-based joint estimation of carrier frequency offset and IQ imbalance in OFDM systems

Jheng Ru Liang, Chih-Hung Kuo

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

11 Citations (Scopus)

Abstract

In this paper, two non-ideal effects, carrier frequency offset (CFO) and IQ imbalance, are jointly compensated for an orthogonal frequency division multiplexing (OFDM) system. Based on the two identical sequences in the preamble, a LS-based method is proposed to estimate both CFO and IQ imbalance. This method has much lower complexity than the state-of-art expectation- maximization (EM) approach. Simulation results show that the proposed algorithm is robust for a wide SNR range, and performs better in the estimation of the IQ imbalance.

Original languageEnglish
Title of host publication2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program
Pages52-55
Number of pages4
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Kaohsiung, Taiwan
Duration: 2010 Nov 182010 Nov 19

Publication series

Name2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program

Other

Other2010 International Symposium on Next-Generation Electronics, ISNE 2010
CountryTaiwan
CityKaohsiung
Period10-11-1810-11-19

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Liang, J. R., & Kuo, C-H. (2010). LS-based joint estimation of carrier frequency offset and IQ imbalance in OFDM systems. In 2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program (pp. 52-55). [5669203] (2010 International Symposium on Next-Generation Electronics, ISNE 2010 - Conference Program). https://doi.org/10.1109/ISNE.2010.5669203