Decision directed scheme for IQ imbalance compensation on OFCDM direct conversion receiver

Tadaaki Yuba, Yukitoshi Sanada

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Recently, the direct conversion scheme has been actively investigated for the purpose of cost miniaturization and low power consumption of wireless receivers. IQ imbalance is one of the problems for the direct conversion receiver. In the case of OFCDM modulations, this IQ imbalance causes intercarrier interference (ICI) in the demodulated signals. In this paper, the decision directed scheme for IQ imbalance compensation is proposed. In the proposed scheme, the combination of received symbols which satisfies orthogonality conditions is used for compensation of IQ imbalance. Therefore, in addition to the pilot symbols, the received symbols can be used in order to improve the accuracy of the compensation matrix and BER can be reduced.

Original languageEnglish
Pages (from-to)184-190
Number of pages7
JournalIEICE Transactions on Communications
VolumeE89-B
Issue number1
DOIs
Publication statusPublished - 2006 Jan

Keywords

  • Direct conversion
  • IQ imbalance
  • OFCDM

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Decision directed scheme for IQ imbalance compensation on OFCDM direct conversion receiver'. Together they form a unique fingerprint.

Cite this