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Simultaneous Information and Control Signaling Protocol for RIS-Empowered Wireless Systems
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DOI：10.1109/lwc.2026.3723200.png)
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Abstract
En 中文
Integration of reconfigurable intelligent surfaces (RIS) in radio access networks requires signaling between edge units and the RIS microcontroller (MC). Unfortunately, in several practical scenarios, the signaling latency is higher than the communication channel coherence time, which causes outdated signaling at the RIS. To counterbalance this, we introduce a simultaneous information and control signaling (SICS) protocol that enables operation adaptation through wireless control signal transmission. SICS assumes that the MC is equipped with a single antenna that operate at the same frequency as the RIS. RIS operates in simultaneous transmission and reflection (STAR) mode, and the source employs non-orthogonal multiple access (NOMA) to superposition the information signal to the control signal. To maximize the achievable user data rate, while ensuring the MC’s ability to decode the control signal, we formulate and solve the corresponding optimization problem that returns RIS’s reflection and transmission coefficients as well as the superposition coefficients of the NOMA scheme. Our results reveal the robustness of the SICS approach.
Keywords:
Optimization
reconfigurable intelligent surfaces
simultaneous information and control signaling
Journal
I
IF:
5.5
Papers:
682
Citations:
0
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