| 前向放大中继MIMO系统的Grassmannian波束成型 |
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| 引用本文： | 吴杨生,杨绿溪.前向放大中继MIMO系统的Grassmannian波束成型[J].电脑与信息技术,2009,17(6):39-42. |
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| 作者姓名： | 吴杨生 杨绿溪 |
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| 作者单位： | 东南大学信息科学与工程学院,江苏,南京,210096 |
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| 摘 要： | 文章给出了多输入多输出前向中继信道的最佳发送、接收波束，以及中继权重矩阵。在考虑直达径的情况下，分别给出了非量化方案、量化方案以及改进的量化方案，这种方案只需要相当少的反馈比特数，但是系统性能的下降完全可以忽略不计，最后，我们对量化和改进的量化方案进行了合理的改进。
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| 关 键 词： | 多输入多输出系统 前向放大中继 波束成型 误比特率 |
Grassmannian Beamforming for MIMO Amplify-and-Forward Relaying |
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| WU Yang-sheng,YANG Lu-xi.Grassmannian Beamforming for MIMO Amplify-and-Forward Relaying[J].Computer and Information Technology,2009,17(6):39-42. |
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| Authors: | WU Yang-sheng YANG Lu-xi |
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| Affiliation: | WU Yang- sheng,YANG Lu- xi (School of Information Science & Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | In this paper, we derive the optimal transmitter/ receiver beamforming vectors and relay weighting matrix for the multiple-input multiple-output amplify-and-forward relay channel. The direct link is considered in the problem model and the unquantized and quantized schemes are derived; then a modified quantizing scheme is presented which introduces a negligible degradation in the system performance but significantly reduces the required number of feedback bits,Finally,we carry out a reasonable improvement of... |
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| Keywords: | multiple-inputmultiple-output systems amplify-and-forword relaying beamforming bit error rate |
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