Coherent multicarrier/DS-CDMA and MC-CDMA for broadband packet wireless access

Sadayuki Abeta, Hiroyuki Atarashi, Mamoru Sawahashi, Fumiyuki Adachi

研究成果: Conference article査読

29 被引用数 (Scopus)

抄録

This paper compares the packet error rate (PER) performance levels of 3 access schemes, i.e., single-carrier (SC)/DS-CDMA, multi-carrier (MC)/DS-CDMA, and MC-CDMA assuming an over 100-MHz bandwidth for broadband packet wireless access. In a broadband propagation channel, severe multipath interference degrades the accuracy of path search and channel estimation for coherent detection. Computer simulation results show that, in the reverse link, SC/DS-CDMA achieves better performance than MC/DS-CDMA because the pilot signal power in one sub-carrier for path search and channel estimation decreases as the number of sub-carrier increases. The superiority of MC-CDMA to MC(SC)/DS-CDMA is demonstrated, and the results show that, in the forward link, frequency Rake diversity with MC-CDMA is more effective than time Rake diversity with DS-CDMA in a broadband multipath fading channel due to a large amount of multipath interference.

本文言語English
ページ(範囲)1918-1922
ページ数5
ジャーナルIEEE Vehicular Technology Conference
3
出版ステータスPublished - 2000 1 1
外部発表はい
イベントVTC2000: 51st Vehicular Technology Conference 'Shaping History Through Mobile Technologies' - Tokyo, Jpn
継続期間: 2000 5 152000 5 18

ASJC Scopus subject areas

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

フィンガープリント

「Coherent multicarrier/DS-CDMA and MC-CDMA for broadband packet wireless access」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル