| 卷积编码DS/CDMA系统中的迭代多用户接收器 |
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| 引用本文： | 张爱萍,罗汉文,王豪行.卷积编码DS/CDMA系统中的迭代多用户接收器[J].高技术通讯,2003,13(1):1-4,15. |
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| 作者姓名： | 张爱萍 罗汉文 王豪行 |
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| 作者单位： | 上海交通大学电子工程系,上海,200030 |
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| 基金项目： | 教育部重点学科 (A80 82 )资助项目。 |
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| 摘 要： | 提出了一种用于卷积编码DS/CDMA系统的迭代多用户接收器。该接收器由一个软输入/软输出（SISO）的判决反馈多用户检测器和一组单用户SISO信道译码器组成，每次迭代过程中，多用户检测器和信道译码器都输出外信息作为下一次迭代的光验信息，仿真结果表明，这种接收器能使远近效应影响下弱用户的比特误码性能接受单用户限。
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| 关 键 词： | 卷积编码 迭代多用户接收器 DS／CDMA 多用户检测 信道译码 码分多址通信 |
Iterative Multiuser Receiver for Convolutionally Coded DS/CDMA Systems |
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| Zhang Aiping,Luo Hanwen,Wang Haoxing.Iterative Multiuser Receiver for Convolutionally Coded DS/CDMA Systems[J].High Technology Letters,2003,13(1):1-4,15. |
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| Authors: | Zhang Aiping Luo Hanwen Wang Haoxing |
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| Abstract: | An iterative multiuser receiver for convolutionally coded DS/CDMA systems is proposed. The proposed receiver consists of a soft-in/soft-out (SISO) decision-feedback multiuser detector and a bank of single-user SISO channel decoders. At each iteration, extrinsic information is extracted from the multiuser detector and the channel decoders and is then used as the prior information in the next iteration. Computer simulations have shown that the proposed receiver offers performance close to single-user bound for weak user in near-far effect. |
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| Keywords: | DS/CDMA Multiuser detection Iterative (Turbo) processing |
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