Comparison of Quantization Techniques for Downlink Multi-User MIMO Channels with Limited Feedback
Comparison of Quantization Techniques for Downlink Multi-User MIMO Channels with Limited Feedback
复制标题
有限反馈下行多用户MIMO信道量化技术比较
DOI：
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发表时间：
2014
影响因子：
6.3
通讯作者：
A. Hedayat
中科院分区：
文献类型：
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作者：
Qi Wang;Hao Feng;L. Cimini;L. Greenstein;D. Chan;A. Hedayat
这封信评估了反馈有限的下行链路多用户多输入多输出 (MU-MIMO) 系统的三种量化技术。量化指定速率损失所需的反馈比特以及每种技术的复杂性。此外，还研究了包含间接费用影响的净容量。分析和仿真结果揭示了每种量化方法的优点和缺点，并演示了在什么条件下使用其中一种而不是另一种。
This letter evaluates three quantization techniques for downlink multiple-user multiple-input multiple-output (MU-MIMO) systems with limited feedback. The required feedback bits for a specified rate loss are quantified, as well as the complexity for each technique. Furthermore, the net capacity, which incorporates the effect of the overhead, is studied. The analysis and simulation results reveal the advantages and drawbacks of each quantization method and demonstrate under what conditions to use one of them rather than the other.