Maximum MIMO capacity of Rice channel
Maximum MIMO capacity of Rice channel
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Rice信道最大MIMO容量
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Z. Yerong
中科院分区：
文献类型：
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作者：
Shen Yan;Z. Yerong
在本文中，我们研究了Rice环境下多输入多输出（MIMO）通信系统的容量限制。在这种情况下，在Rice环境中，信道响应矩阵被建模为视距（LOS）和非视距（NLOS）矩阵的加权和。在Ricean衰落信道模型中使用了LOS传输矩阵，该模型结合了NLOS分量之间的空间相关性，并根据平均容量对性能进行了评估。影响容量的因素很多，其中天线间距的影响是比较详细的。我们根据天线元件的定位导出了最大理论容量的标准，这有助于设计最佳的MIMO架构。不同的天线位移会影响信道的等级，等级越大，信道容量越大。本文对均匀线性阵列和均匀圆形阵列进行了比较，分析了天线位移对容量的影响。
In this paper, we investigate the capacity limits of Multiple-Input, Multiple-Output (MIMO) communication systems in Rice environments. Under this scenario, In Rice environments the channel response matrix is modeled as the weighted sum of the Line-of-Sight (LOS) and the Non-Line-of-Sight (NLOS) matrices. The LOS transmission matrix is used in a Ricean fading channel model which incorporates spatial correlation between the NLOS components, and performance is evaluated with respect to the average capacity. There are many factors impact the capacity, while the antenna spacing is considered in detail. We derive the criteria for the maximum theoretical capacity in terms of the positioning of the antenna elements in a way that can help in the design of optimal MIMO architectures. Different displacement of antennas can impact the channel rank, the capacity becomes larger when the rank increases. In this paper, we compare the Uniform Linear Arrays (ULAs) and the Uniform Circular Arrays (UCAs), in order to get the impact on capacity of the different displacement of the antennas.