According to an embodiment of the present invention, a method of calculating a fairness index, which is a measure of fairness of resource allocation among coexistence managers, for each of the coexistence managers, the resources allocated to the coexistence managers. Calculating a normalized resource quota by normalizing the amount of the P with the amount of resources required for the coexistence manager; And calculating the fairness index by using the normalized resource quotas calculated for each of the coexistence managers.
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