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Intelligent Reflecting Surfaces: Physics, Propagation, and Pathloss Modeling
Open accessAbstract
Intelligent reflecting surfaces can improve the communication between a source and a destination. The surface contains metamaterial that is configured to “reflect” the incident wave from the source towards the destination. Two incompatible pathloss models have been used in prior work. In this letter, we derive the far-field pathloss using physical optics techniques and explain why the surface consists of many elements that individually act as diffuse scatterers but can jointly beamform the signal in a desired direction with a certain beamwidth. We disprove one of the previously conjectured pathloss models.
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Cited by
Toward Smart Wireless Communications via Intelligent Reflecting Surfaces: A Contemporary Survey
Gong, S., Lu, X., Hoang, D. T., Niyato, D., Shu, L., Kim, D. I., & Liang, Y.-C. (2020) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2020.3004197 · Cited by 1,035
Prospective Multiple Antenna Technologies for Beyond 5G
Zhang, J., Bjornson, E., Matthaiou, M., Ng, D. W. K., Yang, H., & Love, D. J. (2020) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2020.3000826 · Cited by 877
Active Reconfigurable Intelligent Surface-Aided Wireless Communications
Long, R., Liang, Y.-C., Pei, Y., & Larsson, E. G. (2021) · IEEE Transactions on Wireless Communications · doi:10.1109/twc.2021.3064024 · Cited by 718
Self-citationDi, B., Zhang, H., Song, L., Li, Y., Han, Z., & Poor, H. V. (2020) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2020.3000813 · Cited by 544
Reconfigurable Intelligent Surfaces: A signal processing perspective with wireless applications
Bjornson, E., Wymeersch, H., Matthiesen, B., Popovski, P., Sanguinetti, L., & de Carvalho, E. (2022) · IEEE Signal Processing Magazine · doi:10.1109/msp.2021.3130549 · Cited by 507
Metadata
- Authors
- Ozdogan, O., Bjornson, E., & Larsson, E. G.
- Venue
- IEEE Wireless Communications Letters
- Published
- 2020-05
- Volume
- 9
- Issue
- 5
- Pages
- 581-585
- ISSN
- 2162-2337 (ISSN-L)
- 2162-2345
- OpenAlex
- W2986415969
- Cited by
- 794
- References
- 0
- FWCI
- 33.04
- Type
- journal article
- Language
- en
- Open access
- green
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- Ozdogan, O., Bjornson, E., & Larsson, E. G. (2020). Intelligent Reflecting Surfaces: Physics, Propagation, and Pathloss Modeling. IEEE Wireless Communications Letters. https://doi.org/10.1109/lwc.2019.2960779
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