OFDM-based Wideband Hybrid Beamformer for mmWave Massive MIMO Multiuser 5G Systems
نویسندگان
چکیده
Employing massive antennas array at the user terminals can be feasible by using millimeter wave (mmWave) transmission which significantly reduce size. The implementation of multiple input output (MIMO) facilitates accurate beamforming. In this paper, a modified orthogonal matching pursuit (OMP) algorithm is used to design wideband hybrid combiner based on sparse structure mmWave channel and frequency-division multiplexing (OFDM). Based OFDM, considered as narrowband channels so implemented for each subcarrier in manner where RF same all subcarriers, whilst baseband obtained subcarrier. For multiuser 5G system, precoder block diagonalization (BD) method base station (BS) cancel interference due other users. performance beamformers (precoder/combiner) are tested different scenarios number, numbers users’ antennas, number
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ژورنال
عنوان ژورنال: Bulletin of Electrical Engineering and Informatics
سال: 2023
ISSN: ['2302-9285']
DOI: https://doi.org/10.11591/eei.v12i3.4094