IQ imbalance estimation scheme with intercarrier interference self-cancellation pilot symbols in OFDM direct conversion receivers

Hiroyuki Miyashita, Mamiko Inamori, Yukitoshi Sanada, Teruji Ide

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

5 Citations (Scopus)

Abstract

Direct conversion receivers in orthogonal frequency division multiplexing (OFDM) systems suffer from direct current (DC) offset, frequency offset, and IQ imbalance. We have proposed an IQ imbalance estimation scheme in the presence of DC offset and frequency offset, which uses pilot subcarriers in the frequency domain. In this scheme, the DC offset is eliminated by a differential filter. However, the accuracy of IQ imbalance estimation is deteriorated due to the intercarrier interference (ICI) components caused by frequency offset. To overcome this problem, a new IQ imbalance estimation scheme with intercarrier interference self-cancellation pilot symbols in the frequency domain has been proposed in this paper. Numerical results obtained through computer simulation show that estimation accuracy and bit error rate (BER) performance are improved.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
DOIs
Publication statusPublished - 2012
EventIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan
Duration: 2012 May 62012 Jun 9

Other

OtherIEEE 75th Vehicular Technology Conference, VTC Spring 2012
CountryJapan
CityYokohama
Period12/5/612/6/9

Fingerprint

Intercarrier Interference
Orthogonal Frequency Division multiplexing (OFDM)
Cancellation
Frequency Offset
Orthogonal frequency division multiplexing
Receiver
Frequency Domain
Bit error rate
Error Rate
Computer Simulation
Filter
Numerical Results
Computer simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

IQ imbalance estimation scheme with intercarrier interference self-cancellation pilot symbols in OFDM direct conversion receivers. / Miyashita, Hiroyuki; Inamori, Mamiko; Sanada, Yukitoshi; Ide, Teruji.

IEEE Vehicular Technology Conference. 2012. 6239943.

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

Miyashita, H, Inamori, M, Sanada, Y & Ide, T 2012, IQ imbalance estimation scheme with intercarrier interference self-cancellation pilot symbols in OFDM direct conversion receivers. in IEEE Vehicular Technology Conference., 6239943, IEEE 75th Vehicular Technology Conference, VTC Spring 2012, Yokohama, Japan, 12/5/6. https://doi.org/10.1109/VETECS.2012.6239943
Miyashita, Hiroyuki ; Inamori, Mamiko ; Sanada, Yukitoshi ; Ide, Teruji. / IQ imbalance estimation scheme with intercarrier interference self-cancellation pilot symbols in OFDM direct conversion receivers. IEEE Vehicular Technology Conference. 2012.
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