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IEICE TRANSACTIONS on Communications

Multibeam Patterns Suitable for Massive MIMO Configurations

Kentaro NISHIMORI, Jiro HIROKAWA

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Summary :

A multibeam massive multiple input multiple output (MIMO) configuration employs beam selection with high power in the analog part and executes a blind algorithm such as the independent component analysis (ICA), which does not require channel state information in the digital part. Two-dimensional (2-D) multibeams are considered in actual power losses and beam steering errors regarding the multibeam patterns. However, the performance of these 2-D beams depends on the beam pattern of the multibeams, and they are not optimal multibeam patterns suitable for multibeam massive MIMO configurations. In this study, we clarify the performance difference due to the difference of the multibeam pattern and consider the multibeam pattern suitable for the system condition. Specifically, the optimal multibeam pattern was determined with the element spacing and beamwidth of the element directivity as parameters, and the effectiveness of the proposed method was verified via computer simulations.

Publication
IEICE TRANSACTIONS on Communications Vol.E105-B No.10 pp.1162-1172
Publication Date
2022/10/01
Publicized
2022/07/13
Online ISSN
1745-1345
DOI
10.1587/transcom.2021MEP0004
Type of Manuscript
Special Section PAPER (Special Section on Multidisciplinary and Innovative Key technologies in Advanced communication systems (MIKA))
Category

Authors

Kentaro NISHIMORI
  Faculty of Engineering, Niigata University
Jiro HIROKAWA
  Tokyo Institute of Technology

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