Interference Alignment by Opportunistic User Selection in 3-User MIMO Interference Channels
Interference Alignment by Opportunistic User Selection in 3-User MIMO Interference Channels
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DOI：
10.1109/icc.2011.5962830
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
Jung Hoon Lee;Wan Choi
中科院分区：
文献类型：
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作者：
Jung Hoon Lee;Wan Choi
在三用户MIMO干扰信道中，我们提出了一种基于机会主义用户选择的实用干扰对齐技术，其中发射机之间不允许共享信息。在所提出的方案中，在每个发射机处选择来自其他发射机的干扰信号彼此最对准的用户。与传统的机会用户选择方案相比，所提出的机会干扰对齐(OIA)方案获得了显著的总和速率。此外，所提出的OIA不仅显著减少了反馈信息量，而且还显著减少了计算复杂度。
In this paper, we propose a practical interference alignment technique based on an opportunistic user selection in a three-user MIMO interference channel where no information is allowed to be shared among transmitters. In the proposed scheme, the user whose interference signals from other transmitters are most aligned with each other is selected at each transmitter. The proposed opportunistic interference alignment (OIA) is shown to achieve notable sum rate compared to conventional opportunistic user selection schemes. In addition, the proposed OIA significantly reduces not only the amount of feedback information but also computational complexity.