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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
double EricssonpathLoss(float f, float TxH, float RxH, float d, int mode)
{
/*
AKA Ericsson 9999 model
*/
// Urban
double a0 = 36.2, a1 = 30.2, a2 = -12, a3 = 0.1;
/* if (f < 150 || f > 1900) {
fprintf
(stderr,"Error: Ericsson9999 model frequency range 150-1900MHz\n");
exit(EXIT_FAILURE);
}
*/
if (mode == 2) { // Suburban / Med loss
a0 = 43.2;
a1 = 68.93;
}
if (mode == 1) { // Rural
a0 = 45.95;
a1 = 100.6;
}
double g1 = 3.2 * (log10(11.75 * RxH) * log10(11.75 * RxH));
double g2 = 44.49 * log10(f) - 4.78 * (log10(f) * log10(f));
return a0 + a1 * log10(d) + a2 * log10(TxH) + a3 * log10(TxH) * log10(d) - g1 + g2;
}