A Study on Layouts of Distributed Antenna Arrays in an Indoor Multi-User Massive MIMO System
A Study on Layouts of Distributed Antenna Arrays in an Indoor Multi-User Massive MIMO System
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DOI：
10.1109/iccnc.2019.8685594
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Yuya Suzuki;T. Nishimura;T. Ohgane;Y. Ogawa;J. Hagiwara
中科院分区：
文献类型：
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作者：
Yuya Suzuki;T. Nishimura;T. Ohgane;Y. Ogawa;J. Hagiwara
对于第五代移动通信系统，多用户多输入多输出(MIMO)系统近年来得到了广泛的研究。然而，因为在最近的大规模MIMO系统中使用了非常大量的天线元件，所以可能难以将天线元件布置在一处。另一方面，分布式天线系统引起了人们的关注，其中基站天线阵列被划分为多个子阵列，并且它们分布分布。在本文中，我们考虑室内环境并评估不同数量的子阵列和不同的子阵列布局的总容量特性。我们还评估了改变天线高度、子阵列的元件排列以及元件之间的距离时总容量的差异。因此，我们可以说，我们需要适当选择子数组的布局、子数组的高度、子数组的元素排列和子数组的元素空间等参数。
For the 5th Generation mobile communication system, a multi-user Multiple-Input Multiple-Output (MIMO) system has been extensively studied in recent years. However, it may be difficult to arrange antenna elements at one place because a very large number of antenna elements are used in a recent massive MIMO system. On the other hand, distributed antenna systems, where a base station antenna array is divided into several subarrays and they are distributedly located, have attracted attention. In this paper, we consider indoor environments and evaluate the sum capacity characteristics for different numbers of subarrays and different layouts of the subarrays. We also evaluate the difference in sum capacity when changing an antenna height, element arrangement of subarrays, and a distance between the elements. As a result, we can say that we need to choose adequately parameters of the layout of subarray, height of subarray, element arrangement of subarray, and element space of subarray.