| 联合均衡块迭代软判决反馈干扰抵消接收机 |
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| 引用本文： | 曾嵘,赵春明. 联合均衡块迭代软判决反馈干扰抵消接收机[J]. 通信学报, 2003, 24(11): 153-161 |
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| 作者姓名： | 曾嵘 赵春明 |
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| 作者单位： | 东南大学,移动通信国家重点实验室,江苏,南京,210096 |
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| 基金项目： | 国家“863”基金资助项目(863-317-03-01-02-04-20/MII-C3G-02-04-002) |
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| 摘 要： | CDMA扩频通信系统在低扩频比时,路径间干扰(IPI, inter-path interference)变得非常严重。本文将块迭代干扰抵消同MMSE均衡器相结合,提出了一种适用于CDMA扩频通信系统低扩频比情况下的联合均衡块迭代软判决反馈干扰抵消(MMSE-BIIC)接收机结构。理论分析与计算机仿真表明,本文提出的MMSE-BIIC接收机同传统的Rake接收机、线性MMSE均衡器以及多级干扰抵消接收机相比在性能上有较大改善。
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| 关 键 词： | 码分多址 MMSE-BIIC接收机 线性MMSE均衡器 块迭代干扰抵消 软判决反馈 |
| 文章编号： | 1000-463X(2003)11-0153-09 |
| 修稿时间： | 2002-07-31 |
Combined equalization block iterative soft decision feedback interference cancellation receiver |
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| ZENG Rong,ZHAO Chun-ming. Combined equalization block iterative soft decision feedback interference cancellation receiver[J]. Journal on Communications, 2003, 24(11): 153-161 |
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| Authors: | ZENG Rong ZHAO Chun-ming |
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| Abstract: | In CDMA spread spectrum systems, the inter-path interference becomes very serious when the spreading factor is considerably low. A receiver structure combining block iterative soft decision feedback interference cancellation with MMSE equalizer for CDMA spread spectrum systems is proposed. Theoretical analysis and computer simulation show that the performance of the proposed receiver is superior to Rake, conventional MMSE equalizer and multistage interference cancellation receiver. |
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| Keywords: | CDMA MMSE-BIIC receiver MMSE equalizer block iterative interference cancellation soft decision feedback |
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