| MIMO系统中基于交织的联合迭代信道估计和多用户检测 |
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| 引用本文： | 徐巧勇,陈浩珉,王宗欣.MIMO系统中基于交织的联合迭代信道估计和多用户检测[J].复旦学报(自然科学版),2005,44(1):128-134. |
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| 作者姓名： | 徐巧勇 陈浩珉 王宗欣 |
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| 作者单位： | 复旦大学,通信科学与工程系,上海,200433;复旦大学,通信科学与工程系,上海,200433;复旦大学,通信科学与工程系,上海,200433 |
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| 摘 要： | 提出一种QPSK调制的多输入多输出交织分多址(MIMO-IDMA)系统的联合迭代信道估计和多用户检测结构．用户间通过不同的码片级交织序列来区分．每个用户每次迭代每信息比特的归一化复杂度与用户数K无关．瑞利信道通过提出的半盲迭代估计得到．仿真结果表明提出的多用户检测方案有较低的误码率和复杂度。
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| 关 键 词： | 通信技术 多输入多输出 交织分多址 迭代信道估计 迭代多用户检测 |
| 文章编号： | 0427-7104(2005)01-0128-07 |
Joint Iterative Channel Estimation and Multiuser Detection Based on Interleave in MIMO Systems |
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| XU Qiao-yong,CHEN Hao-min,WANG Zong-xin.Joint Iterative Channel Estimation and Multiuser Detection Based on Interleave in MIMO Systems[J].Journal of Fudan University(Natural Science),2005,44(1):128-134. |
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| Authors: | XU Qiao-yong CHEN Hao-min WANG Zong-xin |
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| Abstract: | A joint iterative channel estimation and multiuser detection receiver structure is proposed for multiple-input multiple-output interleave division multiple access (MIMO-IDMA) systems with QPSK modulation. Users are distinguished by different chip-level interleaving signatures. The normalized calculation complexity per bit per user per iteration is independent of user number K. Rayleigh channel parameters are obtained by proposed semi-blind iterative estimation. Simulation results show that the proposed multiuser detection scheme reaches lower bit error rate and lower complexity. |
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| Keywords: | communication technology MIMO IDMA iterative channel estimation iterative MUD |
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