The abstract theory describes the statistical characterization of mobile radio propagation fading through probability density functions (PDF) for signal envelopes in Rayleigh and Ricean distributions. These models define distinct regimes based on Line-of-Sight (LOS) presence, where Rayleigh distribution applies to non-LOS environments with equal-amplitude multipath components, while Ricean distribution accounts for a single dominant stationary component alongside scattered signals parameterized by the K-factor. This framework establishes formal mechanisms within wireless communications theory to calculate Level Crossing Rate (LCR) and Average Fade Duration (AFD), which are critical metrics for quantifying signal reliability, burst error probabilities, and designing channel coding strategies against fading-induced synchronization loss.
The abstract theory describes the statistical characterization of mobile radio propagation fading through probability density functions (PDF) for signal envelopes in Rayleigh and Ricean distributions…