TY - JOUR
T1 - Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment
AU - Nie, Yifang
AU - Li, Fangwei
AU - Mbugua, Allan Wainaina
AU - Fan, Wei
PY - 2022
Y1 - 2022
N2 - Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.
AB - Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.
KW - Array signal processing
KW - Beam alignment
KW - Indexes
KW - Interference
KW - Matching pursuit algorithms
KW - Precoding
KW - Radio frequency
KW - Wireless communication
KW - hybrid precoding
KW - millimeter-wave channels
KW - multi-user communications.
UR - http://www.scopus.com/inward/record.url?scp=85120078859&partnerID=8YFLogxK
U2 - 10.1109/LWC.2021.3129264
DO - 10.1109/LWC.2021.3129264
M3 - Journal article
SN - 2162-2337
VL - 11
SP - 381
EP - 385
JO - I E E E Wireless Communications Letters
JF - I E E E Wireless Communications Letters
IS - 2
ER -