MIMO Channel Capacity in an Indoor Line-Of-Sight (LOS) Environment
MIMO Channel Capacity in an Indoor Line-Of-Sight (LOS) Environment
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DOI：
10.1093/ietcom/e88-b.7.3010
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发表时间：
2005-07
期刊：
影响因子：
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通讯作者：
K. Sakaguchi;Hai-Yeow-Eugene Chua;K. Araki
中科院分区：
文献类型：
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作者：
K. Sakaguchi;Hai-Yeow-Eugene Chua;K. Araki
在真实的传播环境中，天线相关性对多输入多输出（MIMO）信道容量的影响是人们感兴趣的话题。在本文中，我们提出了在室内视线（LOS）办公室环境中进行的测量活动的结果。信道响应是在静态室内环境中随着距离的变化而进行的。结果显示，测量结果具有高接收信噪比（SNR）和天线元件之间的高度相关性。对结果的进一步分析表明，与单输入单输出（SISO）系统相比，尽管天线相关性很高，但MIMO系统仍然可以获得足够的信道容量。理论分析表明，当信噪比足够高时，由于高天线相关性造成的信道容量损失相对较小。因此，它表明，在室内LOS环境中，MIMO系统可以是足够有效的，因为MIMO信道是更强大的天线相关性时，信噪比高。
The effect of antenna correlation on the Multiple-Input Multiple-Output (MIMO) channel capacity in the real propagation environment is a topic of interest. In this paper, we present the results of a measurement campaign conducted in an indoor Line-Of-Sight (LOS) office environment. Channel responses were taken with varying distance in a static indoor environment. Results showed measurements with high received Signal-to-Noise Ratio (SNR) and a high level of correlation among the antenna elements. Further analysis of the results showed that MIMO systems can achieve sufficient channel capacity compared to the Single-Input Single-Output (SISO) system, despite high antenna correlation. Theoretical analysis reveals that when the SNR is sufficiently high, the loss in channel capacity due to high antenna correlation is relatively low. Therefore it is shown that in the indoor LOS environment, MIMO systems can be sufficiently efficient because the MIMO channel is more robust to antenna correlation when the SNR is high.