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 publicationIEEE Vehicular Technology Conference
DOIs
Publication statusPublished - 2009
EventVTC Spring 2009 - IEEE 69th Vehicular Technology Conference - Barcelona, Spain
Duration: 2009 Apr 262009 Apr 29

Other

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

Fingerprint

Frequency Offset
Receiver
Impulse response
Bit error rate
Orthogonal frequency division multiplexing
Electric power utilization
Degradation
IEEE 802.11
Computer simulation
Impulse Response
Orthogonal Frequency Division multiplexing (OFDM)
Power Consumption
Error Rate
Compensation and Redress
Costs
Computer Simulation
Calculate
Numerical Results

ASJC Scopus subject areas

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

Cite this

IQ imbalance compensation scheme in the presence of frequency offset and dynamic dc offset for a direct conversion receiver. / Inamori, Mamiko; Bostamam, Anas M.; Sanada, Yukitoshi; Minami, Hideki.

IEEE Vehicular Technology Conference. 2009. 5073621.

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

Inamori, M, Bostamam, AM, 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 IEEE Vehicular Technology Conference., 5073621, VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, Barcelona, Spain, 09/4/26. https://doi.org/10.1109/VETECS.2009.5073621
Inamori, Mamiko ; Bostamam, Anas M. ; Sanada, Yukitoshi ; Minami, Hideki. / IQ imbalance compensation scheme in the presence of frequency offset and dynamic dc offset for a direct conversion receiver. IEEE Vehicular Technology Conference. 2009.
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