Double Directional Millimeter Wave Propagation Channel Measurement and Polarimetric Cluster Properties in Outdoor Urban Pico-cell Environment

Karma WANGCHUK; Kento UMEKI; Tatsuki IWATA; Panawit HANPINITSAK; Minseok KIM; Kentaro SAITO; Jun-ichi TAKADA

doi:10.1587/transcom.2016EBP3303

Double Directional Millimeter Wave Propagation Channel Measurement and Polarimetric Cluster Properties in Outdoor Urban Pico-cell Environment

Karma WANGCHUK, Kento UMEKI, Tatsuki IWATA, Panawit HANPINITSAK, Minseok KIM, Kentaro SAITO, Jun-ichi TAKADA

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To use millimeter wave bands in future cellular and outdoor wireless networks, understanding the multipath cluster characteristics such as delay and angular spread for different polarization is very important besides knowing the path loss and other large scale propagation parameters. This paper presents result from analysis of wide-band full polarimetric double directional channel measurement at the millimeter wave band in a typical urban pico-cell environment. Only limited number of multipath clusters with gains ranging from -8dB to -26.8dB below the free space path loss and mainly due to single reflection, double reflection and diffraction, under both line of sight (LOS) and obstructed LOS conditions are seen. The cluster gain and scattering intensity showed strong dependence on polarization. The scattering intensities for ϑ-ϑ polarization were seen to be stronger compared to ϕ-ϕ polarization and on average 6.1dB, 5.6dB and 4.5dB higher for clusters due to single reflection, double reflection and scattering respectively. In each cluster, the paths are highly concentrated in the delay domain with delay spread comparable to the delay resolution of 2.5ns irrespective of polarization. Unlike the scattering intensity, the angular spread of paths in each cluster did not show dependence on polarization. On the base station side, average angular spread in azimuth and in elevation were almost similar with ≤3.3° spread in azimuth and ≤3.2° spread in elevation for ϑ-ϑ polarization. These spreads were slightly smaller than those observed for ϕ-ϕ polarization. On the mobile station side the angular spread in azimuth was much higher compared to the base station side. On average, azimuth angular spread of ≤11.4° and elevation angular spread of ≤5° are observed for ϑ-ϑ polarization. These spreads were slightly larger than in ϕ-ϕ polarization. Knowing these characteristics will be vital for more accurate modeling of the channel, and in system and antenna design.

Publication: IEICE TRANSACTIONS on Communications Vol.E100-B No.7 pp.1133-1144

Publication Date: 2017/07/01

Publicized: 2017/01/16

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2016EBP3303

Type of Manuscript: PAPER

Category: Antennas and Propagation

Authors

Karma WANGCHUK
  Tokyo Institute of Technology
Kento UMEKI
  Niigata University
Tatsuki IWATA
  Niigata University
Panawit HANPINITSAK
  Tokyo Institute of Technology
Minseok KIM
  Niigata University
Kentaro SAITO
  Tokyo Institute of Technology
Jun-ichi TAKADA
  Tokyo Institute of Technology

Keyword

millimeter wave, urban pico-cell, double directional channel, propagation mechanisms, angular spread, polarization, cluster

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Karma WANGCHUK, Kento UMEKI, Tatsuki IWATA, Panawit HANPINITSAK, Minseok KIM, Kentaro SAITO, Jun-ichi TAKADA, "Double Directional Millimeter Wave Propagation Channel Measurement and Polarimetric Cluster Properties in Outdoor Urban Pico-cell Environment" in IEICE TRANSACTIONS on Communications, vol. E100-B, no. 7, pp. 1133-1144, July 2017, doi: 10.1587/transcom.2016EBP3303.
Abstract: To use millimeter wave bands in future cellular and outdoor wireless networks, understanding the multipath cluster characteristics such as delay and angular spread for different polarization is very important besides knowing the path loss and other large scale propagation parameters. This paper presents result from analysis of wide-band full polarimetric double directional channel measurement at the millimeter wave band in a typical urban pico-cell environment. Only limited number of multipath clusters with gains ranging from -8dB to -26.8dB below the free space path loss and mainly due to single reflection, double reflection and diffraction, under both line of sight (LOS) and obstructed LOS conditions are seen. The cluster gain and scattering intensity showed strong dependence on polarization. The scattering intensities for ϑ-ϑ polarization were seen to be stronger compared to ϕ-ϕ polarization and on average 6.1dB, 5.6dB and 4.5dB higher for clusters due to single reflection, double reflection and scattering respectively. In each cluster, the paths are highly concentrated in the delay domain with delay spread comparable to the delay resolution of 2.5ns irrespective of polarization. Unlike the scattering intensity, the angular spread of paths in each cluster did not show dependence on polarization. On the base station side, average angular spread in azimuth and in elevation were almost similar with ≤3.3° spread in azimuth and ≤3.2° spread in elevation for ϑ-ϑ polarization. These spreads were slightly smaller than those observed for ϕ-ϕ polarization. On the mobile station side the angular spread in azimuth was much higher compared to the base station side. On average, azimuth angular spread of ≤11.4° and elevation angular spread of ≤5° are observed for ϑ-ϑ polarization. These spreads were slightly larger than in ϕ-ϕ polarization. Knowing these characteristics will be vital for more accurate modeling of the channel, and in system and antenna design.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2016EBP3303/_p

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@ARTICLE{e100-b_7_1133,
author={Karma WANGCHUK, Kento UMEKI, Tatsuki IWATA, Panawit HANPINITSAK, Minseok KIM, Kentaro SAITO, Jun-ichi TAKADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Double Directional Millimeter Wave Propagation Channel Measurement and Polarimetric Cluster Properties in Outdoor Urban Pico-cell Environment},
year={2017},
volume={E100-B},
number={7},
pages={1133-1144},
abstract={To use millimeter wave bands in future cellular and outdoor wireless networks, understanding the multipath cluster characteristics such as delay and angular spread for different polarization is very important besides knowing the path loss and other large scale propagation parameters. This paper presents result from analysis of wide-band full polarimetric double directional channel measurement at the millimeter wave band in a typical urban pico-cell environment. Only limited number of multipath clusters with gains ranging from -8dB to -26.8dB below the free space path loss and mainly due to single reflection, double reflection and diffraction, under both line of sight (LOS) and obstructed LOS conditions are seen. The cluster gain and scattering intensity showed strong dependence on polarization. The scattering intensities for ϑ-ϑ polarization were seen to be stronger compared to ϕ-ϕ polarization and on average 6.1dB, 5.6dB and 4.5dB higher for clusters due to single reflection, double reflection and scattering respectively. In each cluster, the paths are highly concentrated in the delay domain with delay spread comparable to the delay resolution of 2.5ns irrespective of polarization. Unlike the scattering intensity, the angular spread of paths in each cluster did not show dependence on polarization. On the base station side, average angular spread in azimuth and in elevation were almost similar with ≤3.3° spread in azimuth and ≤3.2° spread in elevation for ϑ-ϑ polarization. These spreads were slightly smaller than those observed for ϕ-ϕ polarization. On the mobile station side the angular spread in azimuth was much higher compared to the base station side. On average, azimuth angular spread of ≤11.4° and elevation angular spread of ≤5° are observed for ϑ-ϑ polarization. These spreads were slightly larger than in ϕ-ϕ polarization. Knowing these characteristics will be vital for more accurate modeling of the channel, and in system and antenna design.},
keywords={},
doi={10.1587/transcom.2016EBP3303},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Double Directional Millimeter Wave Propagation Channel Measurement and Polarimetric Cluster Properties in Outdoor Urban Pico-cell Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 1133
EP - 1144
AU - Karma WANGCHUK
AU - Kento UMEKI
AU - Tatsuki IWATA
AU - Panawit HANPINITSAK
AU - Minseok KIM
AU - Kentaro SAITO
AU - Jun-ichi TAKADA
PY - 2017
DO - 10.1587/transcom.2016EBP3303
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E100-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2017
AB - To use millimeter wave bands in future cellular and outdoor wireless networks, understanding the multipath cluster characteristics such as delay and angular spread for different polarization is very important besides knowing the path loss and other large scale propagation parameters. This paper presents result from analysis of wide-band full polarimetric double directional channel measurement at the millimeter wave band in a typical urban pico-cell environment. Only limited number of multipath clusters with gains ranging from -8dB to -26.8dB below the free space path loss and mainly due to single reflection, double reflection and diffraction, under both line of sight (LOS) and obstructed LOS conditions are seen. The cluster gain and scattering intensity showed strong dependence on polarization. The scattering intensities for ϑ-ϑ polarization were seen to be stronger compared to ϕ-ϕ polarization and on average 6.1dB, 5.6dB and 4.5dB higher for clusters due to single reflection, double reflection and scattering respectively. In each cluster, the paths are highly concentrated in the delay domain with delay spread comparable to the delay resolution of 2.5ns irrespective of polarization. Unlike the scattering intensity, the angular spread of paths in each cluster did not show dependence on polarization. On the base station side, average angular spread in azimuth and in elevation were almost similar with ≤3.3° spread in azimuth and ≤3.2° spread in elevation for ϑ-ϑ polarization. These spreads were slightly smaller than those observed for ϕ-ϕ polarization. On the mobile station side the angular spread in azimuth was much higher compared to the base station side. On average, azimuth angular spread of ≤11.4° and elevation angular spread of ≤5° are observed for ϑ-ϑ polarization. These spreads were slightly larger than in ϕ-ϕ polarization. Knowing these characteristics will be vital for more accurate modeling of the channel, and in system and antenna design.
ER -