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Smart city article details
| Title | Enhanced Programmability Of Reconfigurable Intelligent Surfaces For Smart Cities Using Application-Specific Integrated Circuits |
|---|---|
| ID_Doc | 23657 |
| Authors | Petrou L.; Brandt T.; Stratakos Y.; Antoniades M.A.; Megerditchian P.; Michail K.; Kounoudes A.; Georgiou J. |
| Year | 2025 |
| Published | Proceedings - IEEE International Symposium on Circuits and Systems |
| DOI | http://dx.doi.org/10.1109/ISCAS56072.2025.11043875 |
| Abstract | Reconfigurable Intelligent Surfaces (RISs) are emerging as a key technology for enhancing wireless communications in smart city environments, offering robust, low-latency connectivity. This paper presents the design of an adaptive control system based on high-voltage, mixed-signal integrated circuits for controlling tunable RISs, tailored for wireless cellular communications in urban areas. The proposed system enables enhanced programmability by dynamically steering beams and fine-tuning signal reflections through the precise control of varactor diodes embedded within the RIS unit cells. This flexible system architecture supports real-time software reconfiguration, allowing RIS units to adapt to varying network conditions and scale seamlessly across smart city infrastructures. Simulated results on a 0.35 μm CMOS high voltage process technology demonstrate the circuit's ability to achieve low power consumption and high reconfiguration speed across a wide temperature range. The control electronics are separated from the RIS panels, this way enabling tiling of multiple surfaces for scalable, cost-effective deployment. This approach offers a promising pathway to meeting the growing demand for seamless, high-speed, and energy-efficient connectivity in next-generation smart city applications, including vehicular networks, Internet of Things, smart traffic management and smart infrastructure. © 2025 IEEE. |
| Author Keywords | ASIC for RIS; intelligent reflecting surface; metasurface; mixed-signal ASIC; programmable RIS; reconfigurable intelligent surface; smart city applications |
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