| 基于分簇波束成形算法的MIMO-OFDM系统信道容量的分析 |
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| 引用本文： | 陈静锐,李忠武,李青.基于分簇波束成形算法的MIMO-OFDM系统信道容量的分析[J].保山师专学报,2012,31(5):26-30. |
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| 作者姓名： | 陈静锐 李忠武 李青 |
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| 作者单位： | 保山学院信息学院,云南保山,678000 |
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| 基金项目： | 保山学院科学研究基金项目 |
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| 摘 要： | 提出了一种在有限反馈条件下多输入多输出-正交频分复用(MIMO-OFDM)系统中基于信道容量的分簇波束成形算法。该算法针对MIMO-OFDM系统在高信噪、低信噪比等不同情况时选择不同的波束成形向量来提升系统的容量。根据簇间、各子簇间均存在一定的相关性,设计出了次优波束成形算法。通过对所提出的算法仿真可知,在高信噪比、低信噪比情况下针对系统容量采用分簇的波束成形算法能够在一定程度上提升MIMO-OFDM系统在确定性信道与随机性信道的信道容量。
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| 关 键 词： | MIMO-OFDM系统 高信噪比 低信噪比 分簇波束成形算法 |
The Analysis of Channel Capacity Based on Clustering Beam-forming Algorithm in MIMO-OFDM System |
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| CHEN Jing-rui
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Li zhongwu
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Li qing.The Analysis of Channel Capacity Based on Clustering Beam-forming Algorithm in MIMO-OFDM System[J].Journal of Baoshan Teachers' College,2012,31(5):26-30. |
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| Authors: | CHEN Jing-rui Li zhongwu Li qing |
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| Institution: | (BaoShan College, YunNan, BaoShan 678000) |
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| Abstract: | In this paper, a new channel capacity analysis scheme based on the clustering beam-forming algorithm with limited feedback is presented in Muhiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing （MIMO-OFDM） system. The algorithm conducts different conditions of the lower SNR and the higher SNR of the system to select different beam-forming vectors to promote the channel capacity. A certain correlation of sub-optimal beam-forming algorithms based on clusters and sub-clusters are presented in this paper. The simulation shows that, using the clustering beam-forming algorithm to a certain extent can enhance the channel capacity under the deterministic channel, random channel of the lower SNR and the higher SNR of the MIMO-OFDM system. |
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| Keywords: | MIMO-OFDM system Higher SNR Lower SNR Clustering beam-forming algorithm |
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