IEICE TRANSACTIONS on Communications
A Beam Search Method with Adaptive Beam Width Control Based on Area Size for Initial Access
Summary :
High gain antennas with narrow-beamforming are required to compensate for the high propagation loss expected in high frequency bands such as the millimeter wave and sub-terahertz wave bands, which are promising for achieving extremely high speeds and capacity. However using narrow-beamforming for initial access (IA) beam search in all directions incurs an excessive overhead. Using wide-beamforming can reduce the overhead for IA but it also shrinks the coverage area due to the lower beamforming gain. Here, it is assumed that there are some situations in which the required coverage distance differs depending on the direction from the antenna. For example, the distance to an floor for a ceiling-mounted antenna varies depending on the direction, and the distance to the obstruction becomes the required coverage distance for an antenna installation design that assumes line-of-sight. In this paper, we propose a novel IA beam search scheme with adaptive beam width control based on the distance to shield obstacles in each direction. Simulations and experiments show that the proposed method reduces the overhead by 20%-50% without shrinking the coverage area in shield environments compared to exhaustive beam search with narrow-beamforming.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E106-B No.4 pp.359-366
- Publication Date
- 2023/04/01
- Publicized
- 2022/10/03
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2022EBP3077
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Takuto ARAI
NTT Access Network Service Systems Laboratories
Daisei UCHIDA
NTT Access Network Service Systems Laboratories
Tatsuhiko IWAKUNI
NTT Access Network Service Systems Laboratories
Shuki WAI
NTT Access Network Service Systems Laboratories
Naoki KITA
NTT Access Network Service Systems Laboratories
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Takuto ARAI, Daisei UCHIDA, Tatsuhiko IWAKUNI, Shuki WAI, Naoki KITA, "A Beam Search Method with Adaptive Beam Width Control Based on Area Size for Initial Access" in IEICE TRANSACTIONS on Communications,
vol. E106-B, no. 4, pp. 359-366, April 2023, doi: 10.1587/transcom.2022EBP3077.
Abstract: High gain antennas with narrow-beamforming are required to compensate for the high propagation loss expected in high frequency bands such as the millimeter wave and sub-terahertz wave bands, which are promising for achieving extremely high speeds and capacity. However using narrow-beamforming for initial access (IA) beam search in all directions incurs an excessive overhead. Using wide-beamforming can reduce the overhead for IA but it also shrinks the coverage area due to the lower beamforming gain. Here, it is assumed that there are some situations in which the required coverage distance differs depending on the direction from the antenna. For example, the distance to an floor for a ceiling-mounted antenna varies depending on the direction, and the distance to the obstruction becomes the required coverage distance for an antenna installation design that assumes line-of-sight. In this paper, we propose a novel IA beam search scheme with adaptive beam width control based on the distance to shield obstacles in each direction. Simulations and experiments show that the proposed method reduces the overhead by 20%-50% without shrinking the coverage area in shield environments compared to exhaustive beam search with narrow-beamforming.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3077/_p
Copy
@ARTICLE{e106-b_4_359,
author={Takuto ARAI, Daisei UCHIDA, Tatsuhiko IWAKUNI, Shuki WAI, Naoki KITA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Beam Search Method with Adaptive Beam Width Control Based on Area Size for Initial Access},
year={2023},
volume={E106-B},
number={4},
pages={359-366},
abstract={High gain antennas with narrow-beamforming are required to compensate for the high propagation loss expected in high frequency bands such as the millimeter wave and sub-terahertz wave bands, which are promising for achieving extremely high speeds and capacity. However using narrow-beamforming for initial access (IA) beam search in all directions incurs an excessive overhead. Using wide-beamforming can reduce the overhead for IA but it also shrinks the coverage area due to the lower beamforming gain. Here, it is assumed that there are some situations in which the required coverage distance differs depending on the direction from the antenna. For example, the distance to an floor for a ceiling-mounted antenna varies depending on the direction, and the distance to the obstruction becomes the required coverage distance for an antenna installation design that assumes line-of-sight. In this paper, we propose a novel IA beam search scheme with adaptive beam width control based on the distance to shield obstacles in each direction. Simulations and experiments show that the proposed method reduces the overhead by 20%-50% without shrinking the coverage area in shield environments compared to exhaustive beam search with narrow-beamforming.},
keywords={},
doi={10.1587/transcom.2022EBP3077},
ISSN={1745-1345},
month={April},}
Copy
TY - JOUR
TI - A Beam Search Method with Adaptive Beam Width Control Based on Area Size for Initial Access
T2 - IEICE TRANSACTIONS on Communications
SP - 359
EP - 366
AU - Takuto ARAI
AU - Daisei UCHIDA
AU - Tatsuhiko IWAKUNI
AU - Shuki WAI
AU - Naoki KITA
PY - 2023
DO - 10.1587/transcom.2022EBP3077
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E106-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2023
AB - High gain antennas with narrow-beamforming are required to compensate for the high propagation loss expected in high frequency bands such as the millimeter wave and sub-terahertz wave bands, which are promising for achieving extremely high speeds and capacity. However using narrow-beamforming for initial access (IA) beam search in all directions incurs an excessive overhead. Using wide-beamforming can reduce the overhead for IA but it also shrinks the coverage area due to the lower beamforming gain. Here, it is assumed that there are some situations in which the required coverage distance differs depending on the direction from the antenna. For example, the distance to an floor for a ceiling-mounted antenna varies depending on the direction, and the distance to the obstruction becomes the required coverage distance for an antenna installation design that assumes line-of-sight. In this paper, we propose a novel IA beam search scheme with adaptive beam width control based on the distance to shield obstacles in each direction. Simulations and experiments show that the proposed method reduces the overhead by 20%-50% without shrinking the coverage area in shield environments compared to exhaustive beam search with narrow-beamforming.
ER -
English
