US US20260222014A1
The invention provides a system for Reconfigurable Intelligent Surfaces (RIS) assisted environmental impairment-aware robust cost-efficient Fiber-Wireless (FiWi) network planning and upgradation which mitigates signal loss caused by the environmental impairments including rain attenuation. The system comprises at least one prediction module, at least one outage computation module, and at least one RIS placement module. The prediction module forecasts the environmental impairments that degrade the signal quality. The outage computation module is fed with output of the prediction module to identify the outage regions based on environmental conditions and channel impairments. The outage computation module analyzes user locations and channel conditions including Signal-to-Interference-plus-Noise Ratio (SINR) to detect users in the outage regions. The RIS placement module is configured to execute convex hull-based RIS placement determination based on the identified outage regions and the users located therein for dynamically determining candidate locations for the RIS deployment and optimizing the RIS placement for reflecting and amplifying the signals to serve outage users efficiently addressing coverage gaps.
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