Massive Antenna Systems for Wireless Entrance (MAS-WE): Practical Application of Massive MIMO with Simplified Space Division Multiplexing Schemes

Kazuki MARUTA  Atsushi OHTA  Satoshi KUROSAKI  Takuto ARAI  Masataka IIZUKA  

IEICE TRANSACTIONS on Communications   Vol.E100-B    No.5    pp.779-787
Publication Date: 2017/05/01
Publicized: 2016/11/16
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016EBP3155
Type of Manuscript: PAPER
Category: Antennas and Propagation
Massive MIMO,  Multiuser MIMO,  inter-user interference cancellation,  scheduling,  spatial channel correlation,  sectorization,  

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This paper proposes a practical application of Massive MIMO technology, Massive Antenna Systems for Wireless Entrance (MAS-WE), and along with related inter-user interference cancellation (IUIC) and scheduling techniques. MAS-WE, in which the entrance base station (EBS) employs a large number of antennas, can effectively provide high capacity wireless entrance links to a large number of access points (APs) distributed over a wide coverage area. The proposed techniques are simplified to practical implementation; EBS side uses around 100 antenna elements to spatially multiplex more than 16 signal streams. SIR performance is evaluated by system level simulations that consider imperfect channel state information (CSI). The results show that MAS-WE with the proposed techniques can reliably achieve high spectral efficiency with high level space division multiplexing.