This document discusses different radio propagation models for both indoor and outdoor environments. It provides examples of common outdoor propagation models including the Longley-Rice model and Hata model. It also discusses indoor propagation models and key factors that influence indoor radio signals, such as building layout and construction materials. Common indoor path loss models include the log-distance path loss model and ITU indoor attenuation model. Radio propagation is influenced by factors like distance, environment, and signal penetration through buildings.

1. PROPAGATION MODELS INDOOR OUTDOOR LOG-NORMAL LOG-DISTANCE

12. Applications The probability that the received signal level will exceed a certain value γ can be calculated from the cumulative density function as Can be used to determine the percentage of coverage area in cellular systems .

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