A Selective Access Method for Heterogeneous Networks Based on Analytic Hierarchy Process and Evolutionary Game Theory

Abstract

The invention discloses a heterogeneous network selecting and accessing method based on analytic hierarchy process and evolutionary game theory, including: 1) according to the analytic hierarchy process, seeking the normalized weight value vectors for different business of the requirements on different network properties; 2) using the evolutionary game model for mathematically modeling a heterogeneous wireless network and defining an reward function model; 3) solving the average reward function value of users in the heterogeneous wireless network, and selecting the network base station based on the payment oriented model of evolutionary game; and 4) after each round of game, comparing the user connection status after the game with the user connection status after the previous game; if the statuses are identical, letting the system into the equilibrium state and ending the game process; and otherwise, returning to step 3 until the system is in the equilibrium state. With the invention, under the condition that, the QoS is fully guaranteed, the fairness between users is effectively increased and the energy consumption of the user terminals is reduced, so as to improve battery life of the terminals while ensuring the users enjoy high QoS.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a heterogeneous network selective access method based on analytic hierarchy process and evolutionary game theory. Background technique [0002] The wireless heterogeneous network is a wireless communication system mainly composed of network base stations of different network standards and network base stations of the same network standard with different transmission powers. It is the main trend of wireless mobile communication in the future. They are basically in the wireless heterogeneous network. With the rapid development of social economy and culture, users' demand for services has shown explosive growth. In addition, users' demands for service types are also constantly diversifying; however, when users are in a complex wireless heterogeneous network, how to combine their own service requests To make full use of the characteristics of different network base...

AI Technical Summary

Problems solved by technology

[0004] The network selection method in the wireless heterogeneous network studied at present can effectively improve the energy efficiency of the base station of the network system and realize the load balancing among the network base stations; There is little research on the method, and the current method is to improve the energy efficiency of the network base station. There is no specific method for improving the energy efficiency of the user terminal through the user access method in the heterogeneous network.

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