Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading

Ken HIRAGA; Kazumitsu SAKAMOTO; Maki ARAI; Tomohiro SEKI; Tadao NAKAGAWA; Kazuhiro UEHARA

doi:10.1587/transcom.E97.B.2491

Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading

Ken HIRAGA, Kazumitsu SAKAMOTO, Maki ARAI, Tomohiro SEKI, Tadao NAKAGAWA, Kazuhiro UEHARA

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This paper presents a spatial division (SD) transmission method based on two-ray fading that dispenses with the high signal processing cost of multiple-input and multiple-output (MIMO) detection and antennas with narrow beamwidth. We show the optimum array geometries as functions of the transmission distance for providing a concrete array design method. Moreover, we clarify achievable channel capacity considering reflection coefficients that depend on the polarization, incident angle, and dielectric constant. When the ground surface is conductive, for two- and three-element arrays, channel capacity is doubled and tripled, respectively, over that of free space propagation. We also clarify the application limit of this method for a dielectric ground by analyzing the channel capacity's dependency on the dielectric constant. With this method, increased channel capacity by SD transmission can be obtained merely by placing antennas of wireless transceiver sets that have only SISO (single-input and single-output) capability in a two-ray propagation environment. By using formulations presented in this paper for the first time and adding discussions on the adoption of polarization multiplexing, we clarify antenna geometries of SD transmission systems using polarization multiplexing for up to six streams.

Publication: IEICE TRANSACTIONS on Communications Vol.E97-B No.11 pp.2491-2501

Publication Date: 2014/11/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E97.B.2491

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Ken HIRAGA
  NTT Corporation
Kazumitsu SAKAMOTO
  NTT Corporation
Maki ARAI
  NTT Corporation
Tomohiro SEKI
  NTT Corporation
Tadao NAKAGAWA
  NTT Corporation
Kazuhiro UEHARA
  NTT Corporation

Keyword

spatial division transmission, array a ntennas, parallel transmission, line-of-sight (LOS), two-ray ground reflection model, reflection coefficient, polarization

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Ken HIRAGA, Kazumitsu SAKAMOTO, Maki ARAI, Tomohiro SEKI, Tadao NAKAGAWA, Kazuhiro UEHARA, "Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading" in IEICE TRANSACTIONS on Communications, vol. E97-B, no. 11, pp. 2491-2501, November 2014, doi: 10.1587/transcom.E97.B.2491.
Abstract: This paper presents a spatial division (SD) transmission method based on two-ray fading that dispenses with the high signal processing cost of multiple-input and multiple-output (MIMO) detection and antennas with narrow beamwidth. We show the optimum array geometries as functions of the transmission distance for providing a concrete array design method. Moreover, we clarify achievable channel capacity considering reflection coefficients that depend on the polarization, incident angle, and dielectric constant. When the ground surface is conductive, for two- and three-element arrays, channel capacity is doubled and tripled, respectively, over that of free space propagation. We also clarify the application limit of this method for a dielectric ground by analyzing the channel capacity's dependency on the dielectric constant. With this method, increased channel capacity by SD transmission can be obtained merely by placing antennas of wireless transceiver sets that have only SISO (single-input and single-output) capability in a two-ray propagation environment. By using formulations presented in this paper for the first time and adding discussions on the adoption of polarization multiplexing, we clarify antenna geometries of SD transmission systems using polarization multiplexing for up to six streams.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.2491/_p

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@ARTICLE{e97-b_11_2491,
author={Ken HIRAGA, Kazumitsu SAKAMOTO, Maki ARAI, Tomohiro SEKI, Tadao NAKAGAWA, Kazuhiro UEHARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading},
year={2014},
volume={E97-B},
number={11},
pages={2491-2501},
abstract={This paper presents a spatial division (SD) transmission method based on two-ray fading that dispenses with the high signal processing cost of multiple-input and multiple-output (MIMO) detection and antennas with narrow beamwidth. We show the optimum array geometries as functions of the transmission distance for providing a concrete array design method. Moreover, we clarify achievable channel capacity considering reflection coefficients that depend on the polarization, incident angle, and dielectric constant. When the ground surface is conductive, for two- and three-element arrays, channel capacity is doubled and tripled, respectively, over that of free space propagation. We also clarify the application limit of this method for a dielectric ground by analyzing the channel capacity's dependency on the dielectric constant. With this method, increased channel capacity by SD transmission can be obtained merely by placing antennas of wireless transceiver sets that have only SISO (single-input and single-output) capability in a two-ray propagation environment. By using formulations presented in this paper for the first time and adding discussions on the adoption of polarization multiplexing, we clarify antenna geometries of SD transmission systems using polarization multiplexing for up to six streams.},
keywords={},
doi={10.1587/transcom.E97.B.2491},
ISSN={1745-1345},
month={November},}

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TY - JOUR
TI - Spatial Division Transmission without Signal Processing for MIMO Detection Utilizing Two-Ray Fading
T2 - IEICE TRANSACTIONS on Communications
SP - 2491
EP - 2501
AU - Ken HIRAGA
AU - Kazumitsu SAKAMOTO
AU - Maki ARAI
AU - Tomohiro SEKI
AU - Tadao NAKAGAWA
AU - Kazuhiro UEHARA
PY - 2014
DO - 10.1587/transcom.E97.B.2491
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2014
AB - This paper presents a spatial division (SD) transmission method based on two-ray fading that dispenses with the high signal processing cost of multiple-input and multiple-output (MIMO) detection and antennas with narrow beamwidth. We show the optimum array geometries as functions of the transmission distance for providing a concrete array design method. Moreover, we clarify achievable channel capacity considering reflection coefficients that depend on the polarization, incident angle, and dielectric constant. When the ground surface is conductive, for two- and three-element arrays, channel capacity is doubled and tripled, respectively, over that of free space propagation. We also clarify the application limit of this method for a dielectric ground by analyzing the channel capacity's dependency on the dielectric constant. With this method, increased channel capacity by SD transmission can be obtained merely by placing antennas of wireless transceiver sets that have only SISO (single-input and single-output) capability in a two-ray propagation environment. By using formulations presented in this paper for the first time and adding discussions on the adoption of polarization multiplexing, we clarify antenna geometries of SD transmission systems using polarization multiplexing for up to six streams.
ER -