The Rice distribution In wireless communications, the amplitude of the received signal is often modeled by the Rice distribution:

fðzÞ ¼

z

2 eðz2þs2Þ=22 I0 zs

2

; z > 0;

where s2¼m1 2þm2 2. The value of s depends on the line of sight signal path. If this path is present and the path gain is high, s is large and it is easier to communicate information. To show this, plot the pdf for s¼0, 0.5, . . . , 5 and compute the probabilities of z>5 for each s.

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