Advanced multi-stage interference canceller systems with adaptive radio channel estimation using pilot and information symbols

Satoru Shimizut*, Eiichiro Kawakami, Kiyohito Tokuda

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

This paper proposes advanced multi-stage interference canceller systems (MSICS) which can estimate radio channels with precision in the direct sequence code division multiple access (DS-CDMA) systems. For the accurate channel estimations, we propose a novel radio channel estimation method specified by the following two signal processing methods. One is the radio channel estimation using both pilot and information signals. The other is the correction of estimated radio channels using adaptation algorithm based on the least mean square method (LMS). The results of our computer simulation indicate that the cell capacity of the advanced MSICS in serial and parallel structure can be increased by about 1.8 and 1.3 times over that of a receiver which does not has a canceller, respectively. Moreover, the advanced MSICS in serial and parallel structure can reduce the required Eb/N0 by about 1.2 dB and 1.6 dB at a BER of HT3 compared to the Ei/N0 of a basic MSICS, respectively.

本文言語English
ページ(範囲)2464-2469
ページ数6
ジャーナルIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
E80-A
12
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 信号処理
  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 電子工学および電気工学
  • 応用数学

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