Journal
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume 10, Issue 2, Pages 261-265Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2020.3027006
Keywords
MIMO communication; Wireless communication; Receiving antennas; Throughput; Spirals; Wireless fidelity; Orbital angular momentum; archimedean spiral antenna; multiple-input multiple-output; wireless communications
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Funding
- National Natural Science Foundation of China [61775050, 11804073, 61921002]
- Fundamental Research Funds for the Central Universities [JZ2020HGTA0072, JZ2019HGBZ0126, PA2019GDZC0098]
- Anhui Provincial Natural Science Foundation [2008085QF282]
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This experimental letter demonstrates the performance enhancement of 2x2 MIMO communication based on orbital angular momentum (OAM) by utilizing the diversity of different OAM modes. By using a versatile OAM antenna, the throughput of MIMO communication can be improved by up to 30.50% or 6.59% respectively.
This letter experimentally demonstrated the performance improvement of orbital-angular-momentum (OAM) based 2 x 2 MIMO communication by using the diversity of different OAM modes. The OAM antenna we used is an eight-arm Archimedean spiral antenna (ASA) capable of generating multiple high-quality OAM vortex waves individually or two types of two-mode mixed vortex waves simultaneously. Both of the two cases are investigated for MIMO communication by evaluating the throughput performance. For MIMO with two OAM modes (generated by two ASAs separately), the throughput improves upon traditional MIMO by up to 30.50%, while for MIMO with two-mode mixed vortex waves (generated by one ASA), 6.59% throughput improvement is obtained.
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