Abstract
A novel simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-assisted full-duplex symbiotic radio (SR) communication paradigm is conceived in this letter. The transmission functionality of the STAR-RIS is used to enhance the downlink transmission, while the reflection functionality is adopted to transmit Internet-of-Things (IoT) data to the full-duplex base station (BS). Compared to the typical RIS-assisted SR, the proposed SR has lower receiver complexity and higher IoT transmission rate. The weighted sum-rate of the downlink users is maximized via jointly optimizing the beamforming coefficients at the BS and the STAR-RIS. Simulation results confirm the effectiveness of the proposed SR system and reveal the performance trade-off between the downlink and IoT transmissions.
| Original language | English |
|---|---|
| Pages (from-to) | 2945-2949 |
| Number of pages | 5 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 13 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2024 |
Bibliographical note
Publisher Copyright:© 2012 IEEE.
Keywords
- Full duplex
- reconfigurable intelligent surface
- simultaneous transmission and reflection
- symbiotic radio
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering