3D nested distributed massive MIMO: Modeling and performance analysis

The Large Scale Multiple-input-multiple-output (MIMO) system, also called Massive MIMO in past researches, are considering the azimuth angle only. However, in a 3D distributed antenna system, the elevation angle cannot be ignored. Nested array as a two dimensional arrays was firstly proposed to perf...

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Bibliographic Details
Published inAd hoc networks Vol. 58; pp. 6 - 12
Main Authors Yuan, Shitong, Liang, Qilian
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.04.2017
Subjects
Difference co-array
Massive MIMO
Nested array
Nested array
3D
Difference co-array
Massive MIMO
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Summary:The Large Scale Multiple-input-multiple-output (MIMO) system, also called Massive MIMO in past researches, are considering the azimuth angle only. However, in a 3D distributed antenna system, the elevation angle cannot be ignored. Nested array as a two dimensional arrays was firstly proposed to perform array processing with increased degree of freedom, using less number of sensors at the same time. This paper introduces a novel 3D MIMO antenna deployment based on nested co-array. As the difference co-arrays are invariance, in the 3D nested distributed MIMO system, we are able to calculate the covariance matrix of channels. Based on this inference, we model a 3D nested distributed MIMO system and analyze its performance with achievable sum rate. By applying the nested deployment, our proposed method could achieve a Massive MIMO with less number of physical antennas. Numerical results also provided to support our model.
ISSN:1570-8705
1570-8713
DOI:10.1016/j.adhoc.2016.12.007