Dokumentdetails
ID
oai:arXiv.org:2407.15570
Thema
Computer Science - Information The... Electrical Engineering and Systems...Autor
Yigit, Zehra Basar, ErtugrulKategorie
Computer Science
Jahr
2024
Auflistungsdatum
24.07.2024
Schlüsselwörter
proposed elements hybrid star-ris communicationZusammenfassung
Integrated sensing and communication (ISAC) is recognized as one of the key enabling technologies for sixth-generation (6G) wireless communication networks, facilitating diverse emerging applications and services in an energy and cost-efficient manner.
This paper proposes a multi-user multi-target ISAC system to enable full-space coverage for communication and sensing tasks.
The proposed system employs a hybrid simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) comprising active transmissive and passive reflective elements.
In the proposed scheme, the passive reflective elements support communication and sensing links for nearby communication users and sensing targets, while low-power active transmissive elements are deployed to improve sensing performance and overcome high path attenuation due to multi-hop transmission for remote targets.
Moreover, to optimize the transmissive/reflective coefficients of the hybrid STAR-RIS, a semi-definite relaxation (SDR)-based algorithm is proposed.
Furthermore, to evaluate sensing performance, signal-to-interference-noise ratio (SINR) and Cramer-Rao bound (CRB) metrics have been derived and investigated via conducting extensive computer simulations.
;Comment: 10 pages, 7 figures
Yigit, Zehra,Basar, Ertugrul, 2024, Hybrid STAR-RIS Enabled Integrated Sensing and Communication
