Improving link capacity by multi-user MMSE-SVD with ICI information in a distributed MIMO cellular network

Improving link capacity by multi-user MMSE-SVD with ICI information in a distributed MIMO cellular network
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在分布式 MIMO 蜂窝网络中通过多用户 MMSE-SVD 和 ICI 信息提高链路容量

DOI:
10.1587/comex.2018xbl0064
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发表时间:
2018
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通讯作者:
F. Adachi
F. Adachi
中科院分区:
--
文献类型:
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作者:
Yuta Seki;F. Adachi

文献摘要

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最近,我们提出了一种多用户空间复用技术称为最小均方误差滤波结合奇异值分解(MMSE-SVD)的分布式多输入多输出(MIMO)网络。多用户MMSE-SVD算法在宏基站(MBS)采用MMSE滤波器抑制用户间干扰(IUI)和天线间干扰(IAI),在用户设备(UE)采用SVD构造的本征模滤波器抑制天线间干扰。为了提高多小区环境下的链路容量,在生成MMSE滤波器时考虑了相邻宏小区的小区间干扰。在本文中,我们应用多用户MMSE-SVD与ICI信息的OFDM下行链路和SC上行链路,讨论复用的UE的数量的影响。
Recently, we proposed a multi-user spatial multiplexing technique called the minimum mean square error filtering combined with singular value decomposition (MMSE-SVD) for a distributed multiple input multiple output (MIMO) network. Multi-user MMSE-SVD applies the MMSE filter at macro base station (MBS) to suppress inter-user interference (IUI) and interantenna interference (IAI), while the eigenmode filter constructed by SVD at user equipments (UEs) to suppress IAI. To improve the link capacity in multicell environment, the inter-cell interference (ICI) from adjacent macro-cells is taken into account in generating the MMSE filter. In this paper, we apply multi-user MMSE-SVD with ICI information to OFDM downlink and SC uplink to discuss the impact of number of multiplexed UEs.