Cell partitioned M-QAM for semi-blind uplink interference suppression on multicell massive MIMO systems
نویسندگان
چکیده
This letter adopts higher-order modulation scheme than 16QAM to our previously proposed semi-blind uplink interference suppression for multicell multiuser massive MIMO systems. Our approach is attained by the decision feedback channel estimation (DFCE) and sample matrix inversion (SMI) spatial adaptive filtering. However, its efficiency depended on inter-cell (ICI), in particular QAM. We propose employ cell partitioning-based M-ary QAM avoid ICI at initial condition verify overall spectral improvement.
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ژورنال
عنوان ژورنال: IEICE communications express
سال: 2021
ISSN: ['2187-0136']
DOI: https://doi.org/10.1587/comex.2021etl0015