What is large scale fading?

Large scale fading refers to the variations in signal strength over large distances, typically caused by factors such as terrain, buildings, and obstacles that affect the line-of-sight propagation of radio waves. It results in significant differences in signal quality experienced by users at varying locations, often modeled using statistical distributions. This phenomenon is crucial in wireless communication design, as it influences coverage area and network planning. Understanding large scale fading helps engineers optimize the placement of antennas and other infrastructure to ensure reliable communication.