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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 通訊工程研究所 > 依資料類型分類 > 期刊論文 >  Adaptive DS-CDMA receiver with code tracking in phase unknown environments

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/133625

標題: Adaptive DS-CDMA receiver with code tracking in phase unknown environments
作者: Ueng, F.B.;Chen, J.D.;Tsai, S.C.
關鍵字: DS-CDMA;code tracking;decision-feedback differential detection;spread-spectrum signals;fading channels;interference suppression;systems;equalization;filter;delay
日期: 2008
Issue Date: 2012-12-14 10:06:46 (UTC+8)
關連: Ieee Transactions on Wireless Communications, Volume 7, Issue 4, Page(s) 1227-1235.
摘要: In this paper, we propose and analyze a new noncoherent receiver with PN code tracking for direct sequence code division multiple access (DS.-CDMA) communication systems in multipath channels. We employ the decision-feedback differential detection method to detect MDPSK signals. An "error signal" is used to update the tap weights and the estimated code delay. Increasing the number of feedback symbols can improve the performance of the proposed noncoherent receiver. For an infinite number of feedback symbols, the optimum weight can be derived analytically, and the performance of the proposed noncoherent receiver approaches to that of the conventional coherent receiver. Simulations show good agreement with the theoretical derivation.
Relation: Ieee Transactions on Wireless Communications
Appears in Collections:[依教師分類] 翁芳標
[依資料類型分類] 期刊論文
[依教師分類] 翁芳標

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