| CDMA中干扰消除多用户检测器的研究 |
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| 引用本文： | 刘向东,顾学迈.CDMA中干扰消除多用户检测器的研究[J].北京科技大学学报,2006,28(9):881-885. |
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| 作者姓名： | 刘向东 顾学迈 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
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| 摘 要： | 基于统计分析方法,导出了传统并行干扰消除检测器(PIC)、部分干扰消除检测器(P-PIC)和最小均方误差检测器(MV-PIC)的输出均值和方差. 结果表明:与传统PIC检测器比较,P-PIC检测器降低了软判决量的均值和方差的偏差;选择恰当的部分干扰消除系数,可以使MV-PIC的输出均值增大、方差减小、误码性能优于PIC检测器.
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| 关 键 词： | 移动通信系统 并行干扰消除 软判决 最小均方误差 CDMA 部分干扰消除 多用户检测器 研究 detector interference cancellation 误码性能 差减 消除系数 选择 偏差 软判决 比较 结果 方差 均值 输出 误差检测器 最小均方 并行 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2006-03-12 |
Research of an interference cancellation multi-user detector for CDMA |
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| LIU Xiangdong,GU Xuemai.Research of an interference cancellation multi-user detector for CDMA[J].Journal of University of Science and Technology Beijing,2006,28(9):881-885. |
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| Authors: | LIU Xiangdong GU Xuemai |
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| Institution: | Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Based on the method of statistics, this paper derived the output mean value and variance of conventional parallel interference cancellation (PIC), partial parallel interference cancellation (P-PIC) and minimum mean-squared error (MV-PIC) detectors for CDMA. The results indicated that the deviations of mean value and variance of the linear decision parameters were reduced by P-PIC compared with PIC. The output mean value was increased and the variance was decreased by choosing suitable partial interference cancellation coefficient for MV-PIC, and its performance of code error is superior to PIC. |
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| Keywords: | mobile communication system parallel interference cancellation linear decision minimum mean-squared error |
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