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多载波DS CDMA并行干扰消除算法分析 被引量：2

Parallel interference-cancellation algorithm for multi-carrier DS CDMA
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摘要 将频率分集合并技术与并行干扰抵消算法相结合,提出了多载波DSCDMA系统的并行干扰消除算法(FDC-PIC),并对这一算法的误码性能进行了计算机仿真.结果表明:FDC-PIC获得了明显优于相关接收的性能,且随着干扰消除级的增加,系统性能将得到进一步地改善,其中最初2级的干扰消除可获得最大的性能改善,但到第3级干扰消除,性能不再有明显的改善,表明2级FDC-PIC具有最佳的性能/复杂度.仿真结果表明:在具有相同干扰消除级数的情况下,基于软判决反馈的FDC-PIC性能上总优于硬判决反馈FDCPIC. Parallel interference cancellation was proposed for multi-carrier DS CDMA (which is termed FDC-PIC) by integrating frequency diversity combining with parallel interference canceling method. It was seen that the performance of FDC-PIC is superior to correlation reception of multi-carrier DS CDMA. With an increase in interference-canceling stages, the system showed its good performance further, especially in the initial second stage, but did a poor performance in the 3rd stage. Namely, 2-stage FDC-PIC showed its best performance/complexity trade-off. The simulation results also indicated that FDC-PIC with soft decision feed back outperforms the system with hard decision one when the stage numbers are the same.
作者 张援农 徐国雄 黄天锡
机构地区 武汉大学电子信息学院 中原工学院电子信息学院
出处 《华中科技大学学报（自然科学版）》 EI CAS CSCD 北大核心 2005年第6期47-50,共4页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
关键词 多载波 直接序列码分多址 并行干扰消除 multi-carrier DS CDMA parallel interference cancellation
分类号 TN911.4 [电子电信—通信与信息系统]
  • 相关文献

参考文献9

  • 1Kondo S, Milstein L B. Performance of multi-carrier DS CDMA systems[J]. IEEE Trans Commun, 1996, 44(2): 238-246.
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二级参考文献2

共引文献4

同被引文献11

  • 1[1]VERDU S.Minimum probability of error for asynchronous Gaussian Multi-access channels[J].IEEE Trans Inform Theory,1986,32(1):85-96.
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  • 10孙雪俊,周祖成.OFDM-CDMA及其检测技术[J].电讯技术,2001,41(1):63-67. 被引量：7

引证文献2

华中科技大学学报（自然科学版）
2005年 第6期

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