Advanced Multipath Channel Modelling
The basic Rayleigh or Rician Model gives the PDF
of envelope
but: - How fast does the signal fade?
- How wide in bandwidth are fades?
Typical systems engineering questions:
- How long can a packet last to avoid fades?
-
For frequency diversity, how far should one separate
carriers?
-
How far should one separate antennas for diversity?
-
What is good interleaving depth?
-
What bit rates work well?
-
Why can't I connect an ordinary POTS modem to a cellular
phone?
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