Elimination of interference due to IQ imbalance for OFCDM direct conversion receiver

Tadaaki Yuba, Yukitoshi Sanada

研究成果: Article査読

抄録

Recently, with a view to reducing the size and power consumption of wireless receivers, research on direct conversion schemes has been carried out extensively. One of the problems in the direct conversion receiver is IQ imbalance. In the direct conversion receiver, a π/2 phase shifter for RF is required. However, it is difficult to operate a phase shifter with an accurate phase shift value over a broad bandwidth. As a result, the IQ balance of the demodulated signals varies. In the case of OFCDM signals, this IQ imbalance affects the demodulated signals as intercarrier interference (ICI). In the present paper, correction of the IQ imbalance by signal processing is considered for reduction of the effect.

本文言語English
ページ(範囲)1-10
ページ数10
ジャーナルElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
88
3
DOI
出版ステータスPublished - 2005 3

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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