STAR-RISs: simultaneous transmitting and reflecting reconfigurable intelligent surfaces

Jiaqi Xu; Yuanwei Liu; Xidong Mu; Octavia A. Dobre

doi:10.1109/LCOMM.2021.3082214

STAR-RISs: simultaneous transmitting and reflecting reconfigurable intelligent surfaces

Jiaqi Xu, Yuanwei Liu^*, Xidong Mu, Octavia A. Dobre

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

245 Citations (Scopus)

Abstract

In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission and reflection. A general hardware model for STAR-RISs is presented. Then, channel models are proposed for the near-field and the far-field scenarios, based on which the diversity gain of the STAR-RISs is analyzed and compared with that of the conventional RISs. Numerical simulations are provided to verify analytical results and to demonstrate that full diversity order can be achieved on both sides of the STAR-RIS.

Original language	English
Pages (from-to)	3134-3138
Number of pages	5
Journal	IEEE Communications Letters
Volume	25
Issue number	9
Early online date	20 May 2021
DOIs	https://doi.org/10.1109/LCOMM.2021.3082214
Publication status	Published - Sept 2021
Externally published	Yes

Keywords

STAR-RISs
Simultaneous Transmitting
Reflecting Reconfigurable Intelligent Surfaces

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title = "STAR-RISs: simultaneous transmitting and reflecting reconfigurable intelligent surfaces",

abstract = "In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission and reflection. A general hardware model for STAR-RISs is presented. Then, channel models are proposed for the near-field and the far-field scenarios, based on which the diversity gain of the STAR-RISs is analyzed and compared with that of the conventional RISs. Numerical simulations are provided to verify analytical results and to demonstrate that full diversity order can be achieved on both sides of the STAR-RIS.",

keywords = "STAR-RISs, Simultaneous Transmitting, Reflecting Reconfigurable Intelligent Surfaces",

author = "Jiaqi Xu and Yuanwei Liu and Xidong Mu and Dobre, {Octavia A.}",

year = "2021",

month = sep,

doi = "10.1109/LCOMM.2021.3082214",

language = "English",

volume = "25",

pages = "3134--3138",

journal = "IEEE Communications Letters",

issn = "1558-2558",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "9",

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T1 - STAR-RISs: simultaneous transmitting and reflecting reconfigurable intelligent surfaces

AU - Xu, Jiaqi

AU - Liu, Yuanwei

AU - Mu, Xidong

AU - Dobre, Octavia A.

PY - 2021/9

Y1 - 2021/9

N2 - In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission and reflection. A general hardware model for STAR-RISs is presented. Then, channel models are proposed for the near-field and the far-field scenarios, based on which the diversity gain of the STAR-RISs is analyzed and compared with that of the conventional RISs. Numerical simulations are provided to verify analytical results and to demonstrate that full diversity order can be achieved on both sides of the STAR-RIS.

AB - In this letter, simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) are studied. Compared with the conventional reflecting-only RISs, the coverage of STAR-RISs is extended to 360 degrees via simultaneous transmission and reflection. A general hardware model for STAR-RISs is presented. Then, channel models are proposed for the near-field and the far-field scenarios, based on which the diversity gain of the STAR-RISs is analyzed and compared with that of the conventional RISs. Numerical simulations are provided to verify analytical results and to demonstrate that full diversity order can be achieved on both sides of the STAR-RIS.

KW - STAR-RISs

KW - Simultaneous Transmitting

KW - Reflecting Reconfigurable Intelligent Surfaces

U2 - 10.1109/LCOMM.2021.3082214

DO - 10.1109/LCOMM.2021.3082214

M3 - Article

SN - 1558-2558

VL - 25

SP - 3134

EP - 3138

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 9

ER -

STAR-RISs: simultaneous transmitting and reflecting reconfigurable intelligent surfaces

Abstract

Keywords

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