Theoretical Performance Analysis of an Image-Band Interference Canceller with Deterministic Imbalance Estimation

Satoshi Denno, Ke Liu, Tatsuo Furuno, Masahiro Morikura

Research output: Contribution to journalArticlepeer-review

Abstract

It is known that a heterodyne multimode receiver implemented with a single RF (Radio Frequency) receiver suffers from imageband interference due to imbalance, i.e. the phase error and the gain imbalance of the RF Hilbert transformer. The blind image band interference canceler with deterministic imbalance estimation that has been proposed mitigates the image-band interference. This performance of the image-band interference canceler is analyzed theoretically in this paper. As a result, it is revealed that estimation accuracy of the deterministic imbalance estimation is improved slightly as the imbalance becomes greater. In addition, it is also shown that the deterministic estimation achieves better performance as the power of image-band interference increases. The performance is confirmed by computer simulation.

Original languageEnglish
Pages (from-to)968-977
Number of pages10
JournalIEICE Transactions on Communications
VolumeE94-B
Issue number4
DOIs
Publication statusPublished - Apr 2011
Externally publishedYes

Keywords

  • Blind canceler
  • Cognitive radio
  • Heterodyne reception
  • I/Q imbalance
  • Image-band interference
  • Multiband
  • Multimode

ASJC Scopus subject areas

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

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