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Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels

Publication ,  Journal Article
Yoo, I; Imani, MF; Sleasman, T; Pfister, HD; Smith, DR
Published in: IEEE Transactions on Communications
February 1, 2019

We propose a spatial multiplexing system using reconfigurable cavity-backed metasurface antennas. The metasurface antennas consist of a printed cavity with dynamically tunable metamaterial radiators patterned on one side and fed by multiple radio frequency ports on the other side (each port representing one communication node), forming a shared aperture. By individual tuning of the radiators, the antennas can generate steerable, concurrent beams that can be adapted to the properties of multiple-input-multiple-output (MIMO) channels. In this paper, we present a 2 × 2 MIMO system with simulated metasurface antennas as transmit and receive antennas operating at 5.9 GHz. We demonstrate that the flexibility in beamforming supported by the metasurface antennas can be used to achieve low spatial correlation and high SNR gain in clustered MIMO channels, leading to a significant improvement of the channel capacity. Numerical studies show 2.36-fold, 2.11-fold enhancements of capacity in MIMO channels with one and two clusters, respectively, compared with an MIMO system consisting of linear dipoles. The MIMO system based on the metasurface antennas can be low cost, low profile, and low power. The metasurface antenna thus has potential applications in small cell networks requiring high data rate under bandwidth, energy, and cost constraints.

Duke Scholars

Published In

IEEE Transactions on Communications

DOI

EISSN

1558-0857

ISSN

0090-6778

Publication Date

February 1, 2019

Volume

67

Issue

2

Start / End Page

1070 / 1084

Related Subject Headings

  • 4606 Distributed computing and systems software
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0804 Data Format
 

Citation

APA
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ICMJE
MLA
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Yoo, I., Imani, M. F., Sleasman, T., Pfister, H. D., & Smith, D. R. (2019). Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels. IEEE Transactions on Communications, 67(2), 1070–1084. https://doi.org/10.1109/TCOMM.2018.2876899
Yoo, I., M. F. Imani, T. Sleasman, H. D. Pfister, and D. R. Smith. “Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels.” IEEE Transactions on Communications 67, no. 2 (February 1, 2019): 1070–84. https://doi.org/10.1109/TCOMM.2018.2876899.
Yoo I, Imani MF, Sleasman T, Pfister HD, Smith DR. Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels. IEEE Transactions on Communications. 2019 Feb 1;67(2):1070–84.
Yoo, I., et al. “Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels.” IEEE Transactions on Communications, vol. 67, no. 2, Feb. 2019, pp. 1070–84. Scopus, doi:10.1109/TCOMM.2018.2876899.
Yoo I, Imani MF, Sleasman T, Pfister HD, Smith DR. Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels. IEEE Transactions on Communications. 2019 Feb 1;67(2):1070–1084.

Published In

IEEE Transactions on Communications

DOI

EISSN

1558-0857

ISSN

0090-6778

Publication Date

February 1, 2019

Volume

67

Issue

2

Start / End Page

1070 / 1084

Related Subject Headings

  • 4606 Distributed computing and systems software
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
  • 0804 Data Format