Abstract:

Based on gray relation analysis and multi-criteria decision, a dynamic access selection strategy was proposed to improve the accuracy of access selection for multi-model terminals in heterogeneous networks. By transforming access selection into multi-criteria decision, the effects of access selection parameters were considered comprehensively and an appropriate access network was supplied for the terminals. The simulation results showed that this strategy can provide optimal access networks for multi-model terminals after balancing multiple decision criteria.

Key words: heterogeneous wireless network, access selection, multi-criteria decision, gray relation analysis