Cooperative Distributed Antenna Transmission for 5G Mobile Communications Network

Fumiyuki ADACHI  Amnart BOONKAJAY  Yuta SEKI  Tomoyuki SAITO  Shinya KUMAGAI  Hiroyuki MIYAZAKI  

IEICE TRANSACTIONS on Communications   Vol.E100-B   No.8   pp.1190-1204
Publication Date: 2017/08/01
Publicized: 2017/02/08
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016FGP0019
Type of Manuscript: Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category: Wireless Communication Technologies
5G mobile communications network,  distributed antenna network,  cooperative signal transmission,  space-time block coding,  multi-user communication,  signal peak suppression,  

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In this paper, the recent advances in cooperative distributed antenna transmission (CDAT) are introduced for spatial diversity and multi-user spatial multiplexing in 5G mobile communications network. CDAT is an advanced version of the coordinated multi-point (CoMP) transmission. Space-time block coded transmit diversity (STBC-TD) for spatial diversity and minimum mean square error filtering combined with singular value decomposition (MMSE-SVD) for multi-user spatial multiplexing are described under the presence of co-channel interference from adjacent macro-cells. Blind selected mapping (blind SLM) which requires no side information transmission is introduced in order to suppress the increased peak-to-average signal power ratio (PAPR) of the transmit signals when CDAT is applied. Some computer simulation results are presented to confirm the effectiveness of CDAT techniques.