Towards Near-Field 3D Spot Beamfocusing: Possibilities, Challenges, and Use-cases
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arXiv
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| Format: | Preprint |
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2023
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| author | Monemi, Mehdi Fallah, Mohammad Amir Rasti, Mehdi Latva-Aho, Matti Debbah, Merouane |
| author_facet | Monemi, Mehdi Fallah, Mohammad Amir Rasti, Mehdi Latva-Aho, Matti Debbah, Merouane |
| contents | Spot beamfocusing (SBF) is the process of focusing the signal power in a small spot-like region in the 3D space, which can be either hard-tuned (HT) using traditional tools like lenses and mirrors or electronically reconfigured (ER) using modern large-scale intelligent surface phased arrays. ER-SBF can be a key enabling technology (KET) for the next-generation 6G wireless networks offering benefits to many future wireless application areas such as wireless communication and security, mid-range high-power and safe wireless chargers, medical and health, physics, etc. Although near-field HT-SBF and ER-beamfocusing have been studied in the literature and applied in the industry, there is no comprehensive study of different aspects of ER-SBF and its future applications, especially for nonoptical (mmWave, sub-THz, and THz) electromagnetic waves in the next generation wireless technology, which is the aim of this paper. The theoretical concepts behind ER-SBF, different antenna technologies for implementing ER-SBF, employing machine learning (ML)-based schemes for enabling channel-state-information (CSI)-independent ER-SBF, and different practical application areas that can benefit from ER-SBF will be explored. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_08651 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Towards Near-Field 3D Spot Beamfocusing: Possibilities, Challenges, and Use-cases Monemi, Mehdi Fallah, Mohammad Amir Rasti, Mehdi Latva-Aho, Matti Debbah, Merouane Information Theory Systems and Control Spot beamfocusing (SBF) is the process of focusing the signal power in a small spot-like region in the 3D space, which can be either hard-tuned (HT) using traditional tools like lenses and mirrors or electronically reconfigured (ER) using modern large-scale intelligent surface phased arrays. ER-SBF can be a key enabling technology (KET) for the next-generation 6G wireless networks offering benefits to many future wireless application areas such as wireless communication and security, mid-range high-power and safe wireless chargers, medical and health, physics, etc. Although near-field HT-SBF and ER-beamfocusing have been studied in the literature and applied in the industry, there is no comprehensive study of different aspects of ER-SBF and its future applications, especially for nonoptical (mmWave, sub-THz, and THz) electromagnetic waves in the next generation wireless technology, which is the aim of this paper. The theoretical concepts behind ER-SBF, different antenna technologies for implementing ER-SBF, employing machine learning (ML)-based schemes for enabling channel-state-information (CSI)-independent ER-SBF, and different practical application areas that can benefit from ER-SBF will be explored. |
| title | Towards Near-Field 3D Spot Beamfocusing: Possibilities, Challenges, and Use-cases |
| topic | Information Theory Systems and Control |
| url | https://arxiv.org/abs/2401.08651 |