Game theory based multi-access bandwidth allocation method

Abstract

The invention discloses a game theory based multi-access bandwidth allocation method. According to the game theory based multi-access bandwidth allocation method, users in multi-network overlapping coverage areas in a heterogeneous wireless network can simultaneously select access to multiple networks, and multi-access bandwidth allocation of users is achieved with the target of maximizing a user revenue function. The game theory based multi-access bandwidth allocation method includes the following specific steps of partitioning system areas, judging an area where each user is located according to position information of the users, acquiring an access network of each user, calculating signal to noise ratios of different networks obtained by each user, designing a utility function which is relevant to a handling capacity and meets concave function features, and adjusting bandwidth request policies of the users by the users according to bandwidth requests of other users at current time in the network so as to maximize revenue of the users. When any user in the network cannot increase revenue by individually changing self-policies, i.e., achieving Nash equilibrium, each user obtains the maximum revenue at present.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a multi-access bandwidth allocation method based on game theory. Background technique [0002] In recent years, with the rapid development of wireless communication technology, the next-generation wireless network will be a heterogeneous wireless network composed of multiple wireless access technologies. Big difference. The heterogeneous network environment provides the possibility for users to get better services. Users no longer have to choose a single network, but can choose a suitable single or multiple networks according to their own conditions. Due to the emergence of multi-mode terminals, in the next generation of wireless networks, terminals will be able to access multiple different networks (such as UM TS and WLAN) at the same time. The integration of multiple technologies can provide users with better and better services, so users How to choose the network to be c...

AI Technical Summary

Problems solved by technology

However, the existing network selection and resource allocation are limited to the selection of a single network, and the research on multi-access algorithms is still lacking.

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