Inter-chip interference cancellation for DS-CDMA with frequency-domain equalization

Kazuaki Takeda, Fumiyuki Adachi

研究成果: Conference article査読

7 被引用数 (Scopus)

抄録

The bit error rate (BER) performance of DS-CDMA in a frequency-selective fading channel can be significantly improved by the use of frequency-domain equalization (FDE). However, for a small spreading factor SF, the residual inter-chip-inference (ICI) degrades the BER performance. In this paper, we propose three types of ICI cancellation and the BER performance improvement is evaluated by computer simulation. The ICI replica is generated and subtracted from the FDE-equalized chip sequence. The reduction in E b N 0 for achieving a BER=10 -4 is as much as about 4.2 dB when the spreading factor SF=4. Joint use of antenna diversity combining and ICI cancellation is also presented.

本文言語English
ページ(範囲)2316-2320
ページ数5
ジャーナルIEEE Vehicular Technology Conference
60
4
出版ステータスPublished - 2004 12 1
イベント2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
継続期間: 2004 9 262004 9 29

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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