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Lecture 1)
Introduction to the mobile and satellite
communications environment.
Basic cellular
concepts, traffic, multiple access schemes. Electromagnetic spectrum,
Maxwell's equations, boundary conditions, field and wave solutions,
plane wave properties, polarization, dielectric properties
Lecture 2) Electromagnetic waves continued:
power transmission and loss mechanisms.
Antennas: basic antenna
parameters -gain patterns, efficiency, sidelobe level, impedance.
Far field solutions, Antenna types. The "dB"
Lecture 3)
Interactions of EM plane waves:
Friis equation,
Fresnel reflection/transmission coefficients, scattering and
diffraction. Smooth vs rough surfaces, Diffraction theory, GTD
Lecture 4) Mobile propagation models,
types of fading, simple flat earth model, diffraction models, ray
tracing, refraction effects: 4/3 earth radius
Lecture 5)
Noise:
Thermal noise, origin,
spectrum and power. Noise Figure of active and passive devices,
calculation of system noise temperature, C/N interference,
Modulation schemes, BER calculations
Lecture 6)
Satellites Communications:
Satellite Orbits, LEO, MEO
and GEO. Orbital mechanics and prediction codes, 2-line element sets
Lecture 7)
Satellite communication systems, satellite control system.
Link Budget Parameters,
G/T of satellite systems, Fade margin. Ground terminals. Lecture 8)
Satellite propagation, world maps of rain rates, relevant parameters:
fade depth and duration statistics, fade slope for power control.
Useful models: SAM, Crane, DAH etc.
Lecture 9)
Propagation measurement techniques.
Recent propagation
measurement campaigns. Relevance of radiometer measurements
Lecture 10)
Special topics and summary. |
