Sep 2026· International Conference on Aerospace Electronics Information and Intelligent Systems· Vol 14356, pp. 1435615 - 1435615-8· 0 citations· 8 references
Engineering
TL;DR
This work investigates physical-layer security design for near-field integrated sensing and communication systems assisted by a hybrid reconfigurable intelligent surface (H-RIS) and achieves higher WCSR than benchmark schemes and improves security performance under different system configurations.
Abstract
This work investigates physical-layer security design for near-field integrated sensing and communication systems assisted by a hybrid reconfigurable intelligent surface (H-RIS). The H-RIS supports both signal reflection and sensing-echo reception, enabling secure cascaded transmission and local echo measurement. A worst-case secrecy rate maximization problem is formulated by jointly optimizing BS beamforming, artificial noise covariance, and H-RIS reflection phases under transmit-power, sensing, and hardware constraints. An alternating optimization algorithm combining fractional programming, successive convex approximation, and penalty-based relaxation is developed. Simulation results show that the proposed scheme achieves higher WCSR than benchmark schemes and improves security performance under different system configurations.
A tailored alternating optimization framework is developed that decomposes the original joint design into tractable subproblems, where each admits an efficient solution while preserving the system constraints, enabling an effective joint optimization of beamforming and FARIS reconfiguration.
Hong-Bae Jeon, Yonghwi Kim, Hyung-Joo Moon et al.· 0 citations
In this letter, sensing-assisted secure communication scheme via reconfigurable intelligent surface (RIS) in integrated sensing and communication (ISAC) systems is proposed. A target parameter estimation method based on orthogonal frequency division multiplexing (OFDM) and time-domain reconstruction is developed to est...
This letter investigates secure transmission in active reconfigurable intelligent surface (RIS)-assisted integrated sensing and communication (ISAC) systems. We consider a scenario with multiple colluding eavesdroppers (Eves), where a dual-functional ISAC base station (BS) simultaneously serves multiple legitimate user...
Numerical results demonstrate that, compared to the RIS-NOMA-ISAC and RIS-RSMA-assisted ISAC scheme, the proposed RIS-RSMA-assisted ISAC scheme achieves approximately 6% and 35% improvements in secrecy sum rate, respectively.
Wang-Mei Lu, You-Hong Feng, Wei Song et al.· Electronics· 0 citations
An optimization framework is formulated to maximize the sum secrecy rate for both DL and UL, considering power budget constraints for sensing and communications, and an iterative joint Taylor-block cyclic coordinate descent (IJTB) method is introduced to approximate it as a convex problem.
Aleksandar Boljevi'c, Ming-Jun Ying, Ahmad Bazzi et al.· 0 citations
This paper proposes a robust beamforming framework for a full-duplex (FD) integrated secure communication, computation, and energy (ISC2E) network. In the considered network, an FD base station (BS) simultaneously performs downlink wireless power transfer while aggregating uplink over-the-air computation data and recei...
Chang-Jie Hu, Jiashuo Sun, Tuo Wu et al.· IEEE Transactions on Wireles...· 0 citations
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