Calculating and plotting an integral

Hi guys,

Can anyone help me in calculating the attached integral.

N=8,
a = 0:10 (dB)
x = sqrt(2*a)

and the goal is plotting PB vs. x.

TIA!!!!

[Rik]

Have a read here (or here for more general advice). It will greatly improve your chances of getting an answer.

[David Goodmanson]

Hi Su,

the inner integral (the one that is taken to the N/2-1 power) is

normcdf(v+X) - normcdf(-(v+X))
which is also
2*normcdf(v+X) - 1

assuming that v+X >= 0. But the lower limit on the outer integral, v >= -X, assures that this is the case.

So you can plug in either of those two expressions and then you are at least down to a single integral, which can be done numerically.