Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 21, Issue 6, Pages 1188-1192Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2022.3161364
Keywords
MIMO communication; Optimization; Antenna arrays; Relays; Dipole antennas; Costs; Channel models; Multipath components (MPC); multiple-input-multiple-output (MIMO); particle swarm optimization (PSO); polarization
Funding
- National Nature Science Foundation of China [61801180]
- Jiangxi Provincial Nature Science Foundation [20202BAB202003]
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This study analyzes the channel capacity of MIMO relay channels and reveals the polarization dependency of multipath components. It proposes polarization optimization schemes that significantly improve the link capacity of MIMO relay channels. The research highlights the importance of optimizing the polarization direction of MIMO relay channels.
Polarization selectivity has a great impact on multiple-input-multiple-output (MIMO) relay channels. In this letter, the channel capacity of MIMO relay channels is analyzed, revealing the polarization dependency of multipath components. Polarization optimization schemes are proposed, including a regular optimization and a dynamic weight particle swarm optimization (DWPSO) for MIMO relay channels. The performance analysis shows that the DWPSO can significantly improve the link capacity of MIMO relay channels based on the COST 2100 channel model. This study indicates that it is necessary to optimize the polarization direction of MIMO relay channels.
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