Heterogeneous Network Selection Algorithm Based on the Subjective and Objective Weights

Aiming at how to select the most optimal acces network in the heterogeneous network. A heterogeneous network selection algorithm based on the subjective and objective weights was proposed. On the user side,Analytic hierarchy process( AHP) was used to determine the user preference. On the network side,Criteria importance through intercriteria correlation( CRITIC) method was used to determine the network objective state. finally,the user preferences and network status collaborative judgment were integrated for the choice of the optimal network by Technique for order preference by similarity to an ideal solution( TOPSIS). Simulation results show that: the method can comprehensively consider the user service type and network performance objectively,and improved the rationality and validity of network selection.