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+// Example no 5.8
+// To find the average fade duration
+// Page no. 225
+
+clc;
+clear all;
+
+// Given data
+rho1=0.01;                                            // Threshold level
+rho2=0.1;                                             // Threshold level
+rho3=1;                                               // Threshold level
+fm=200;                                               // Doppler frequency
+
+t1=(exp(rho1^2)-1)/(rho1*fm*sqrt(2*%pi));             // The average fade duration
+t2=(exp(rho2^2)-1)/(rho2*fm*sqrt(2*%pi));             // The average fade duration
+t3=(exp(rho3^2)-1)/(rho3*fm*sqrt(2*%pi));             // The average fade duration
+
+// Displaying the result in command window
+printf('\n The average fade duration (for rho = 0.01) = %0.1f microseconds',t1*10^6);
+printf('\n The average fade duration (for rho = 0.1) = %0.0f microseconds',t2*10^6);
+printf('\n The average fade duration (for rho = 1) = %0.2f microseconds',t3*10^3);