In smart city applications, fiber networks serve as the foundation for connecting various IoT systems, including traffic management, public safety, and utility monitoring. The low latency of fiber is crucial for time-sensitive IoT applications, such as autonomous vehicles and industrial automation, where real-time data processing is essential. As edge computing becomes more prevalent in IoT architectures, fiber connections between edge nodes and centralized data centers ensure efficient data transfer and processing, enabling more responsive and intelligent IoT systems.