This paper proposes the use of two transmit and two receive antennas spaced at roughly the width of a human body to improve communication quality in the presence of shadowing by a human body in the 60GHz band. In the proposed method, the transmit power is divided between the two transmit antennas, and the receive antenna that provides the maximum receive level is then chosen. Although the receive level is reduced by 3dB, the maximum attenuation caused by human body shadowing is totally suppressed. The relationship between the antenna element spacing and the theoretical spacing based on the 1st. Fresnel zone theory is clarified. Experiments confirm that antenna spacing several centimeters wider than that given by the 1st. Fresnel zone theory is enough to attain a significant performance improvement.
Tomoaki NAGAYAMA
Ibaraki University
Shigeki TAKEDA
Ibaraki University
Masahiro UMEHIRA
Ibaraki University
Kenichi KAGOSHIMA
Ibaraki University
Teruyuki MIYAJIMA
Ibaraki University
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Tomoaki NAGAYAMA, Shigeki TAKEDA, Masahiro UMEHIRA, Kenichi KAGOSHIMA, Teruyuki MIYAJIMA, "Improving Performance by Countering Human Body Shadowing in 60GHz Band Wireless Systems by Using Two Transmit and Two Receive Antennas" in IEICE TRANSACTIONS on Communications,
vol. E99-B, no. 2, pp. 422-429, February 2016, doi: 10.1587/transcom.2015EBP3003.
Abstract: This paper proposes the use of two transmit and two receive antennas spaced at roughly the width of a human body to improve communication quality in the presence of shadowing by a human body in the 60GHz band. In the proposed method, the transmit power is divided between the two transmit antennas, and the receive antenna that provides the maximum receive level is then chosen. Although the receive level is reduced by 3dB, the maximum attenuation caused by human body shadowing is totally suppressed. The relationship between the antenna element spacing and the theoretical spacing based on the 1st. Fresnel zone theory is clarified. Experiments confirm that antenna spacing several centimeters wider than that given by the 1st. Fresnel zone theory is enough to attain a significant performance improvement.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2015EBP3003/_p
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@ARTICLE{e99-b_2_422,
author={Tomoaki NAGAYAMA, Shigeki TAKEDA, Masahiro UMEHIRA, Kenichi KAGOSHIMA, Teruyuki MIYAJIMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Improving Performance by Countering Human Body Shadowing in 60GHz Band Wireless Systems by Using Two Transmit and Two Receive Antennas},
year={2016},
volume={E99-B},
number={2},
pages={422-429},
abstract={This paper proposes the use of two transmit and two receive antennas spaced at roughly the width of a human body to improve communication quality in the presence of shadowing by a human body in the 60GHz band. In the proposed method, the transmit power is divided between the two transmit antennas, and the receive antenna that provides the maximum receive level is then chosen. Although the receive level is reduced by 3dB, the maximum attenuation caused by human body shadowing is totally suppressed. The relationship between the antenna element spacing and the theoretical spacing based on the 1st. Fresnel zone theory is clarified. Experiments confirm that antenna spacing several centimeters wider than that given by the 1st. Fresnel zone theory is enough to attain a significant performance improvement.},
keywords={},
doi={10.1587/transcom.2015EBP3003},
ISSN={1745-1345},
month={February},}
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TY - JOUR
TI - Improving Performance by Countering Human Body Shadowing in 60GHz Band Wireless Systems by Using Two Transmit and Two Receive Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 422
EP - 429
AU - Tomoaki NAGAYAMA
AU - Shigeki TAKEDA
AU - Masahiro UMEHIRA
AU - Kenichi KAGOSHIMA
AU - Teruyuki MIYAJIMA
PY - 2016
DO - 10.1587/transcom.2015EBP3003
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E99-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2016
AB - This paper proposes the use of two transmit and two receive antennas spaced at roughly the width of a human body to improve communication quality in the presence of shadowing by a human body in the 60GHz band. In the proposed method, the transmit power is divided between the two transmit antennas, and the receive antenna that provides the maximum receive level is then chosen. Although the receive level is reduced by 3dB, the maximum attenuation caused by human body shadowing is totally suppressed. The relationship between the antenna element spacing and the theoretical spacing based on the 1st. Fresnel zone theory is clarified. Experiments confirm that antenna spacing several centimeters wider than that given by the 1st. Fresnel zone theory is enough to attain a significant performance improvement.
ER -