IQ imbalance compensation scheme in the presence of frequency offset and dynamic dc offset for a direct conversion receiver

Mamiko Inamori, Anas M. Bostamam, Yukitoshi Sanada, Hideki Minami

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

3 Citations (Scopus)

Abstract

A direct conversion architecture reduces the cost and power consumption of a receiver. However, a direct conversion receiver may suffer from direct current (DC) offset, frequency offset, and IQ imbalance. This paper presents an IQ imbalance estimation scheme for orthogonal frequency division multiplexing (OFDM) direct conversion receivers. The proposed IQ imbalance estimation scheme operates in the presence of dynamic DC offset and frequency offset. The proposed scheme calculates IQ imbalance from a simple equation. It employs the knowledge of the preamble symbols of the IEEE 802.11 a/g standards, while it does not require the impulse response of the channel. Numerical results through computer simulation show that the bit error rate (BER) performance for the proposed IQ imbalance estimation scheme has a degradation of about 4dB with a large DC offset, frequency offset, and IQ imbalance.

Original languageEnglish
Title of host publicationVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
DOIs
Publication statusPublished - 2009 Oct 12
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 2009 Apr 262009 Apr 29

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

OtherVTC Spring 2009 - IEEE 69th Vehicular Technology Conference
CountrySpain
CityBarcelona
Period09/4/2609/4/29

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ASJC Scopus subject areas

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

Cite this

Inamori, M., Bostamam, A. M., Sanada, Y., & Minami, H. (2009). IQ imbalance compensation scheme in the presence of frequency offset and dynamic dc offset for a direct conversion receiver. In VTC Spring 2009 - IEEE 69th Vehicular Technology Conference [5073621] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2009.5073621