Wang, W;
Ni, W;
Tian, H;
Yang, Z;
Huang, C;
Wong, KK;
(2022)
Robust Design for STAR-RIS Secured Internet of Medical Things.
In:
Proceedings of the IEEE International Conference on Communications Workshops, ICC Workshops 2022.
(pp. pp. 574-579).
Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
This paper investigates the secure and efficient e-health data transmission problem in a simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surface (RIS) assisted Internet of Medical Things (IoMT) network. The STAR-RIS is employed to safeguard the patients' telemedicine against eavesdroppers in the whole space. The joint active and passive beamforming is developed to maximize the secrecy energy efficiency (SEE), taking into account the imperfect channel state information (CSI) of all channels. By approximating the semi-infinite inequality constraints with S-procedure and general sign-definiteness, the reformulated problem is solved by an alternating optimization framework. Simulation results reveal that: 1) STAR-RIS can achieve more noteworthy SEE gain for IoMT networks than conventional reflecting-only RIS; 2) The equal time splitting mode of STAR-RIS is preferable for low power domain, while the energy splitting mode achieves the best performance when the downlink power is sufficient; 3) The accuracy of CSI estimation and the bit resolution power consumption are crucial to reap the SEE benefits offered by STAR-RIS.
| Type: | Proceedings paper |
|---|---|
| Title: | Robust Design for STAR-RIS Secured Internet of Medical Things |
| Event: | 2022 IEEE International Conference on Communications Workshops (ICC Workshops) |
| Location: | Seoul, Republic of Korea |
| Dates: | 16th-20th May 2022 |
| ISBN-13: | 978-1-6654-2672-5 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICCWorkshops53468.2022.9814697 |
| Publisher version: | https://doi.org/10.1109/ICCWorkshops53468.2022.981... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Internet of Medical Things, reconfigurable intelligent surface, robust beamforming, secure communication |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10153132 |
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