Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/15333
Title: An Improved Pointing Error Model for Mmwave and Thz Links: Antenna and Array Design Impact
Authors: Ahrazoglu, Evla Safahan
Gul, Ahmet Caner
Akinci, Mehmet Nuri
Altunbas, Ibrahim
Erdogan, Eylem
Keywords: Antenna Arrays
Antenna Radiation Patterns
Millimeter Wave Communication
Solid Modeling
Jitter
Terahertz Radiation
Terahertz Communications
Antennas
Propagation Losses
Atmospheric Modeling
Directional Communication
Millimeter Wave
Modeling
Pointing Error
Terahertz
Publisher: IEEE-Inst Electrical Electronics Engineers inc
Abstract: Pointing error has a significant impact on the performance of millimeter wave (mmWave) and terahertz (THz) communications due to directional transmission. Currently existing pointing error models are lacking in capturing the mmWave/THz radiation characteristics and/or the impact of antenna design and array design. Therefore, in this letter, a simple analytical pointing error model for highly directional mmWave/THz transmission is proposed. By utilizing the Gaussian beam approximation for both the array element radiation pattern and the array factor, the presented model incorporates antenna design parameters (maximum gain and 3 dB beamwidth) and array design parameters (number of array elements, element spacing, and 3 dB beamwidth). This approximation is validated via electromagnetic simulations in CST Microwave Studio. Afterwards, the statistics of the pointing error are derived according to the Gaussian beam approximation, and it is demonstrated that the pointing error follows a special case of the negative log-Gamma distribution with the shape parameter of 2 and the scale parameter depending on antenna/array design and jitter variance. It is shown that the proposed model aligns perfectly with the simulation results. Moreover, the outage performance of an aerial communication scenario is analyzed to examine the impact of pointing errors. The results have revealed that the antenna and array design parameters are as influential as the jitter variance, and they cannot be neglected.
URI: https://doi.org/10.1109/LCOMM.2025.3529519
ISSN: 1089-7798
1558-2558
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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