The growing need for communication systems in urban areas working at high-speed and energy-efficient has led to developing smart city infrastructures. This article exploits the incorporation of Reconfigurable Intelligent Surfaces (RIS), as a sustainable approach, into urban environments to enhance the connectivity and the energy efficiency of the wireless communication, while exploring their architectural and engineering integration into the fabric of smart cities. Unlike previous approaches, which have traditionally focused on electromagnetic optimizations, this paper proposes RIS as an innovative architectural component that has the potential for integrating wireless communication and sustainability into smart cities. The approach utilizes a multi-step methodology, beginning with an analysis of architectural, structural, and communication needs for designing criteria for implementation. Additionally, this paper proposes a co-design approach for designing geometry and RIS implementation at the same time, which will focus on functional efficiency and aesthetic consistency. Optimization of RIS placement and orientation will be optimized using simulation analysis, taking into consideration signal propagation, energy efficiency, in addition to urban context constraints. The specific RIS modules will be integrated into façade panels and architectural elements using material, structural, and visual strategies. Finally, implementation of this integrated solution will then be assessed for performance on communication, energy efficiency, and aesthetic implementation. By the intelligent reflection of the electromagnetic waves, RIS can transform conventional architectural structures into active communication elements to bridge the gap between wireless connectivity and sustainable urban development. The results aid in the development of future intelligent, energy-efficient, and aesthetically pleasing of future cities.
Ali et al. (Thu,) studied this question.