Limited Feedback Precoding for Massive MIMO

The large-scale array antenna system with numerous low-power antennas deployed at the base station, also known as massive multiple-input multiple-output (MIMO), can provide a plethora of advantages over the classical array antenna system. Precoding is important to exploit massive MIMO performance, a...

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Bibliographic Details
Published in:International journal of antennas and propagation 2013-01, Vol.2013 (2013), p.1-9
Main Authors: Su, Xin, Zeng, Jie, Li, Jingyu, Rong, Liping, Liu, Lili, Xu, Xibin, Wang, Jing
Format: Article
Language:English
Subjects:
Antennas
Approximation
Arrays
Channels
Design engineering
Feedback
Mathematical analysis
Stations
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Summary:The large-scale array antenna system with numerous low-power antennas deployed at the base station, also known as massive multiple-input multiple-output (MIMO), can provide a plethora of advantages over the classical array antenna system. Precoding is important to exploit massive MIMO performance, and codebook design is crucial due to the limited feedback channel. In this paper, we propose a new avenue of codebook design based on a Kronecker-type approximation of the array correlation structure for the uniform rectangular antenna array, which is preferable for the antenna deployment of massive MIMO. Although the feedback overhead is quite limited, the codebook design can provide an effective solution to support multiple users in different scenarios. Simulation results demonstrate that our proposed codebook outperforms the previously known codebooks remarkably.
ISSN:1687-5869
1687-5877
DOI:10.1155/2013/416352