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Performance of Convolutionally Coded Multicarrier DS-CDMA System

Performance of Convolutionally Coded Multicarrier DS-CDMA System
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摘要 A new convolutionally coded direct sequence (DS) CDMA system is proposed. The outputs of a convolutional encoder modulate multiple band-limited DS-CDMA waveforms. The receiver detects and combines signals for the desired user and feeds a soft-decision Viterbi decoder. The performance of this system is compared to that of a convolutionally coded single carrier DS CDMA system with a Rake receiver. At roughly equivalent receiver complexity, results will demonstrate superior performance of the coded multicarrier system. A new convolutionally coded direct sequence （DS） CDMA system is proposed. The outputs of a convolutional encoder modulate multiple band-limited DS-CDMA waveforms. The receiver detects and combines signals for the desired user and feeds a soft-decision Viterbi decoder. The performance of this system is compared to that of a convolutionally coded single carrier DS CDMA system with a Rake receiver. At roughly equivalent receiver complexity, results will demonstrate superior performance of the coded multicarrier system.
作者 SONG Li-xin HUANG Tian-shu DU Guang-yu
机构地区 School of Electron. Inform.
出处 《Semiconductor Photonics and Technology》 CAS 2005年第4期281-286,共6页 半导体光子学与技术（英文版）
基金 KeyProjectofNaturalSciencefromHubeiProvincialDepartmentofEducation(2004D002) ScientificResearchFoundationfromDepartmentofthePublicSecurity(200342-823-01)
关键词 DS-CDMA系统 码分多址 回旋码 衰退系统 频率分布 Convolutional code Rayleigh fading Multicarrier CDMA Frequency diversity Narrow-band interference
分类号 TN914.53 [电子电信—通信与信息系统]
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参考文献9

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二级参考文献7

  • 1Kim Cheol-Sung, Milstein L B. Statistical modeling of W-CDMA signals for use over frequency-selective multipath channels[J]. IEEE Trans. Commun. , 2004, 52(1): 28-30.
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Semiconductor Photonics and Technology
2005年 第4期

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