| 改进的多用户波束赋形算法 |
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| 引用本文： | 李文刚,易克初,刘祖军,邵飞.改进的多用户波束赋形算法[J].通信学报,2009,30(12):79-84. |
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| 作者姓名： | 李文刚 易克初 刘祖军 邵飞 |
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| 作者单位： | 西安电子科技大学,ISN国家重点实验室,陕西,西安,710071 |
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| 基金项目： | 国家自然科学基金资助项目(60572148;60702060):国家科技重大专项资助项目(2009ZX03003-001)Foundation Items:The National Natural Science Foundation of China，The Natinal Key Science & Technology Specific Projects |
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| 摘 要： | 为了减少多用户MIMO系统中用户间的相互干扰,增加系统的吞吐量,提出一种基于用户发送信号最小泄露准则(SLNR)的多用户线性波束赋形算法--CB-SLNR算法,该算法通过确定收发双方码本矩阵,基站选择合适的codebook对发送信号赋形,同时通过控制信息传递其他用户码本索引信息,使接收端易于采用MMSE检测算法恢复发送信号.仿真表明CB-SLNR算法很好地改善了系统吞吐量.
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| 关 键 词： | 多用户 多入多出 线性波束赋形 同道干扰 吞吐量 |
Improved beamforming algorithm of multi-user system |
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| LI Wen-gang,YI Ke-chu,LIU Zu-jun,SHAO Fei.Improved beamforming algorithm of multi-user system[J].Journal on Communications,2009,30(12):79-84. |
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| Authors: | LI Wen-gang YI Ke-chu LIU Zu-jun SHAO Fei |
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| Abstract: | To reduce the user's interference and improve the throughput of multi-user MIMO system,a multi-user beamfoming algorithm named as CB-SLNR,which based on the minimal leakage of transmits signal criterion,was proposed.First the transmitter and receivers co-fixcd a codebook matrix.then base station select available codebook vector to beamfrom the transmitted signal,while it's codebook index was transmitted to the user via a low-rate feedforward control channel.It wag used to recover the transmitted signal with the MMSE detection algodthra.Simulation shows the CB-SLNR algorithm has a significant improvement in system's throughput. |
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| Keywords: | Multi-user MIMO linear beamforming CCI throughput |
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