The availability of large bandwidths in the terahertz
(THz) band will be a crucial enabler of high data rate applications
in next-generation wireless communication systems. The urban
microcellular scenario is an essential deployment scenario where
the base station (BS) is significantly higher than the user equipment
(UE). Under practical operating conditions, moving objects
(i.e., blockers) can intermittently obstruct various parts of the BSUE
link. Therefore, in the current paper, we analyze the effect of
such blockers. We assume a blockage of the strongest beam pair
and investigate the availability and extent of angular diversity,
i.e., alternative beampairs that can sustain communication when
the strongest is blocked. The analysis uses double-directional
channel measurements in urban microcellular scenarios for 145-
146 GHz with BS-UE distances between 18 to 83 m. We relate the
communication-system quantities of beam diversity and capacity
to the wireless propagation conditions. We show that the SNR
loss due to blockage depends on the blocked angular range and
the specific location, and we find mean blockage loss to be on
the order of 10-20 dB in line-of-sight (LOS) and 5-12 dB in
NLOS (non-LOS). This analysis can contribute to the design of
intelligent algorithms or devices (e.g., beamforming, intelligent
reflective surfaces) to overcome the impact of the blockage.
more »
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This content will become publicly available on May 15, 2024
Impact of blockers on user equipment angular diversity in THz Microcellular scenarios
The availability of large bandwidths in the terahertz
(THz) band will be a crucial enabler of high data rate applications
in next-generation wireless communication systems. The urban
microcellular scenario is an essential deployment scenario where
the base station (BS) is significantly higher than the user equipment
(UE). Under practical operating conditions, moving objects
(i.e., blockers) can intermittently obstruct various parts of the BSUE
link. Therefore, in the current paper, we analyze the effect of
such blockers. We assume a blockage of the strongest beam pair
and investigate the availability and extent of angular diversity,
i.e., alternative beampairs that can sustain communication when
the strongest is blocked. The analysis uses double-directional
channel measurements in urban microcellular scenarios for 145-
146 GHz with BS-UE distances between 18 to 83 m. We relate the
communication-system quantities of beam diversity and capacity
to the wireless propagation conditions. We show that the SNR
loss due to blockage depends on the blocked angular range and
the specific location, and we find mean blockage loss to be on
the order of 10-20 dB in line-of-sight (LOS) and 5-12 dB in
NLOS (non-LOS). This analysis can contribute to the design of
intelligent algorithms or devices (e.g., beamforming, intelligent
reflective surfaces) to overcome the impact of the blockage.
more »
« less
- NSF-PAR ID:
- 10427458
- Date Published:
- Journal Name:
- IEEE International Conference on Communications
- ISSN:
- 1938-1883
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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