High-resolution multi-beam tracking with low overhead for mmWave beamforming system

Kim, Seonyong; Kwon, Girim; Park, Hyuncheol

doi:10.1016/j.icte.2021.01.014

Cited by 6 publications

(3 citation statements)

References 16 publications

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“…A widely used generic frame structure for THz communications consists of multiple timeslots, the first of which are occupied by the beam-racking and channel estimation procedures, followed by the data transmission [10]. The beam-tracking timeslot includes the entire beam-tracking process, such as coarse beam-tracking and angle estimation phases [11], or beam-tracking and localization [12]. The frame begins with the beam-tracking procedure to find the direction of the TO, which is followed by the channel estimation in the direction estimated by the tracking process and then the data transmission.…”

Section: Frame Structurementioning

confidence: 99%

Beam-Tracking Challenges in THz Communications

Stratidakis,

Droulias,

Alexiou

2024

WWRT

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In recent years, the demand for high data rates has increased drastically. In response to this increasing demand, higher frequencies, such as millimeter wave (mmWave) and terahertz (THz) have been considered that offer much larger bandwidth and potentially much higher data rates. Nevertheless, with the increase in frequency, the pathloss increases significantly, with the non-line-of-sight (nLoS) incurring attenuation levels that can dramatically reduce the quality of a wireless link. The use of directional antennas to counteract the increased pathloss is widely accepted. However, highly directional beams are prone to misalignment and a method to track the tracking object (TO) of the link with consistency, accuracy and low overhead is needed. To this end, the design of beam-tracking algorithms has been proposed. In this work, the main parameters that affect the reliability of beam-tracking are presented along with the challenges that beam-tracking algorithms need to address. Furthermore, the performance merits with respect to three reliability parameters are presented in the case of a simple beam-tracking algorithm.

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Section: Frame Structurementioning

confidence: 99%

Beam-Tracking Challenges in THz Communications

Stratidakis,

Droulias,

Alexiou

2024

WWRT

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“…It has been shown that the proposed scheme outperforms classical LCMV beamformers especially in the low signal to noise ratio (SNR) regime. [53] proposed a near-optimal codebookbased beam training technique for mmWave communication systems that uses a variant of global direct search algorithm where the searching algorithm tracks the strong beam by using expansive, rotational, or shrinkage translation of the solution simplex. It has been shown that in multipath channels there are multiple local optima and this scheme may converge to a local optima.…”

Section: A Related Workmentioning

confidence: 99%

Allied Power Constraint Optimization and Optimal Beam Tracking Schemes for Mobile mmWave Massive MIMO Communications

Ghosh¹,

Singh

Hacı³

et al. 2021

IEEE Access

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“…Also, recently, multi-beamforming systems have been actively used in mm-wave band. A beam scheduling algorithm using measurements of receiving power was introduced to improve latency in [6], and the modelfree multi-beam tracking algorithm combining the Q-learning with auxiliary beam pair-based angle estimation in mm-wave band was devised in [7].…”

Section: Introductionmentioning

confidence: 99%

Multi-Beam Forming and Optimization for Active Phased Array Antenna Using Genetic Algorithm

Bae¹,

Choi²

2022

PIER M

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In this paper, the optimized results of multi-beam forming for an active phased array antenna are presented. In the case of a horn radiator, to implement equal main beamwidths and a low side-lobe level in the principal planes, a circularly polarized dual-mode horn antenna with the gain over 14.5 dBi is designed and fabricated at the Ka-band, which is composed of a conical horn, polarizer, and transducer. In the case of multi-beam forming, when several main beams are simultaneously generated within a limited scanning range, large side-lobes can be observed among the main beams. To overcome this phenomenon, an evolutionary technique, such as a genetic algorithm, is applied to the optimization of a multi-beam pattern. It is shown that the proposed method can significantly reduce the outer side-lobe level as well as the inner side-lobe level of the simultaneous multi-beam pattern.

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High-resolution multi-beam tracking with low overhead for mmWave beamforming system

Cited by 6 publications

References 16 publications

Beam-Tracking Challenges in THz Communications

Beam-Tracking Challenges in THz Communications

Allied Power Constraint Optimization and Optimal Beam Tracking Schemes for Mobile mmWave Massive MIMO Communications

Multi-Beam Forming and Optimization for Active Phased Array Antenna Using Genetic Algorithm

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