Frequency-domain soft interference cancellation for multicode CDMA transmissions

Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

Frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA signal transmissions in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. In 4G systems, much higher variable rate data services than in the present 3G systems are required. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose a frequency-domain soft interference cancellation (FDSIC) for multicode DS- and MC-CDMA signal transmissions and their achievable BER performances are evaluated by computer simulation.

本文言語English
ホスト出版物のタイトル2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
ページ2523-2527
ページ数5
出版ステータスPublished - 2006 12 1
イベント2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia
継続期間: 2006 5 72006 7 10

出版物シリーズ

名前IEEE Vehicular Technology Conference
5
ISSN(印刷版)1550-2252

Other

Other2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
CountryAustralia
CityMelbourne
Period06/5/706/7/10

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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