| Closed Loop Space-Time Block Coding for Wireless Downlink Transmission |
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| 作者姓名： | 李勇朝 廖桂生 王峰 |
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| 作者单位： | NationalKeyLab.forRadarSignalProcessing,XidianUniversity,Xi＇an710071,China |
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| 基金项目： | TheNationalNaturalScienceFoundationofChina(No.60172028),theScienceFundationofShaanxiProvince(No.2004F45)andtheFoundationofYoungWorkstationofSEE,XidianUniversity. |
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| 摘 要： | In order to improve the poor performance of Space-Time Block Coding (STBC) in a downlink correlated fading environment, a closed loop scheme is proposed. With the known channel fading statistics fed from the receiver, eigenbeamforming is utilized to improve the performance of STBC at the transmitter. The new system achieves the array and diversity gain simultaneously. Because reduced dimension processing is adopted, the proposed system has a relative simple structure compared with the traditional beamforming system. The validity of the scheme is verified in several situations by simulation experiments.
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| 关 键 词： | 空时块编码 下行链线路传输 闭环 无线通信 本征波束形成 |
Closed Loop Space-Time Block Coding for Wireless Downlink Transmission |
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| Li Yongzhao,Liao Guisheng,Wang Feng.Closed Loop Space-Time Block Coding for Wireless Downlink Transmission[J].Journal of Southwest Jiaotong University,2005,13(1):18-22. |
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| Authors: | Li Yongzhao Liao Guisheng Wang Feng |
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| Abstract: | In order to improve the poor performance of Space-Time Block Coding (STBC) in a downlink correlated fading environment, a closed loop scheme is proposed. With the known channel fading statistics fed from the receiver, eigenbeamforming is utilized to improve the performance of STBC at the transmitter. The new system achieves the array and diversity gain simultaneously. Because reduced dimension processing is adopted, the proposed system has a relative simple structure compared with the traditional beamforming system. The validity of the scheme is verified in several situations by simulation experiments. |
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| Keywords: | Space-time block coding Eigenbeamforming Downlink transmission |
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