Physical-Layer Channel Authentication for 5G via Machine Learning Algorithm

Algorithm 2

AdaBoost.

Input:

training data set :

Process:

1:Initialize the weight distribution of the sample points:

2:for to do, means -th training

3:Use the training data set of to learn and get the weak classifier:

4:Calculate the classification error rate of on the training data set:

5:Calculate the coefficient of :

6:Update the weight distribution of the training data set:

,

7:Construct a linear combination of weak classifiers:

End for

return: