How to solve complex system of equations using matlab?

0
votes

I have to analyze 802.11 saturation throughput using matlab, and here is my problem. I'm trying to solve parametric equations below (parameters are m,W,a) using solve function and i get

Warning: Explicit solution could not be found

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How could I solve above equations using matlab?

1
matlabwifi
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1 Answers

0
votes

I guess you were trying to find an analytical solution for tau and p using symbolic math. Unless you're really lucky with your parameters (e.g. m=1), there won't be an analytical solution.

If you're interested in numerical values for tau and p, I suggest you manually substitue p in the first equation, and then solve an equation of the form tau-bigFraction=0 using, e.g. fzero.

Here's how you'd use fzero to solve a simple equation kx=exp(-x), with k being a parameter.

k = 5; %# set a value for k
x = fzero(@(x)k*x-exp(-x),0); %# initial guess: x=0