Subset_Selection_Based_RIS_Aided_Beamforming_for_Joint_Radar_Communications.pdf (292 kB)
Subset selection based RIS-aided beamforming for joint radar-communications
conference contribution
posted on 2023-06-07, 08:02 authored by Evangelos Vlachos, Aryan KaushikAryan KaushikJoint radar-communications (JRC) benefits from multi-functionality of radar and communication operations using same hardware and radio frequency (RF) spectrum resources. Thus, JRC systems possess very high potential to be employed into the sixth generation (6G) standards. Besides, intelligent ref lecting surfaces have attracted wide attention in communication systems, due to low complexity of implementation. This paper designs a dynamic beamformer for reconfigurable intelligent surfaces (RIS) which maximizes spectral efficiency (SE). We jointly express the mutual information rate for communication and radar entities including a weighting factor which depicts the dominance of one operation over the other. The joint-SE based proposed method optimally selects the RIS subset. Furthermore, when the communication operation takes place the proposed method takes into account the interference occurring from the radar operation and vice-versa. Fractional programming based selection procedure is used for solving the problem of subset selection. Simulation results are presented and compared with different baselines to show effectiveness of the proposed method.
History
Publication status
- Published
File Version
- Accepted version
Journal
2023 IEEE Wireless Communications and Networking Conference (WCNC)ISSN
1558-2612Publisher
IEEEPublisher URL
External DOI
Event name
IEEE Wireless Communications and Networking Conference (WCNC)Event location
Glasgow, UKEvent type
conferenceEvent date
26-29 March 2023ISBN
9781665491228Department affiliated with
- Engineering and Design Publications
Notes
© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2023-02-01First Open Access (FOA) Date
2023-02-01First Compliant Deposit (FCD) Date
2023-02-01Usage metrics
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