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Reconfigurable Intelligent Surfaces Assisted Communications With Limited Phase Shifts: How Many Phase Shifts Are Enough?
Open accessAbstract
Reconfigurable intelligent surface (RIS) has drawn a great attention worldwide as it can create favorable propagation conditions by controlling the phase shifts of the reflected signals at the surface to enhance the communication quality. However, the practical RIS only has limited phase shifts, which will lead to the performance degradation. In this paper, we evaluate the performance of an uplink RIS assisted communication system by giving an approximation of the achievable data rate, and investigate the effect of limited phase shifts on the data rate. In particular, we derive the required number of phase shifts under a data rate degradation constraint. Numerical results verify our analysis.
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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
Zheng, B., You, C., Mei, W., & Zhang, R. (2022) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2022.3155305 · Cited by 579
Di, 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
Self-citationBeamforming Technologies for Ultra-Massive MIMO in Terahertz Communications
Ning, B., Tian, Z., Mei, W., Chen, Z., Han, C., Li, S., Yuan, J., & Zhang, R. (2023) · IEEE Open Journal of the Communications Society · doi:10.1109/ojcoms.2023.3245669 · Cited by 270
Intelligent Omni-Surfaces: Ubiquitous Wireless Transmission by Reflective-Refractive Metasurfaces
Zhang, S., Zhang, H., Di, B., Tan, Y., Di Renzo, M., Han, Z., Vincent Poor, H., & Song, L. (2022) · IEEE Transactions on Wireless Communications · doi:10.1109/twc.2021.3094869 · Cited by 196
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Metadata
- Authors
- Zhang, H., Di, B., Song, L., & Han, Z.
- Venue
- IEEE Transactions on Vehicular Technology
- Published
- 2020-04
- Volume
- 69
- Issue
- 4
- Pages
- 4498-4502
- ISSN
- 0018-9545 (ISSN-L)
- 1939-9359
- OpenAlex
- W3005112765
- Cited by
- 358
- References
- 0
- FWCI
- 23.04
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhang, H., Di, B., Song, L., & Han, Z. (2020). Reconfigurable Intelligent Surfaces Assisted Communications With Limited Phase Shifts: How Many Phase Shifts Are Enough? IEEE Transactions on Vehicular Technology. https://doi.org/10.1109/tvt.2020.2973073
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