Table of Contents
The Basics of Mobile Propagation
Mobile Propagation
Key Questions about Propagation
Key Terms of This Section
Free Space Loss
Free Space Loss
FREE SPACE LOSS, continued
Antenna Gain
Antenna Gain: derivation
Antenna Gain: Half-Wave Dipole
Law of Conservation of Energy
Groundwave loss:
Three Components
Space-wave approximation for UHF land-mobile communication
Space-wave approximation
Space-wave approximation
Space-wave approximation
Two-ray model
Two-Ray Model
Egli’s semi-empirical model
Generic path-loss models
Micro-cellular models
Indoor Models
Reflection
Diffraction loss
Statistical Fluctuations
Shadowing
Shadowing: s = 3 .. 12 dB
How do systems handle shadowing?
Multipath fading
Models for Multipath Fading
Rayleigh Multipath Reception
Effect of Flat Fading
Rayleigh Model
Received Amplitudes
Received Power
Fade Margin
Ricean Multipath Reception
Ricean Multipath Reception
Ricean Amplitude
Ricean K-factor
Exercise: Outage Probability
Solution
Solution, Part II: Diversity
Outage Probability Versus Fade Margin
How do systems handle fading?
Summary
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