Resource allocation method based on one-to-many matching in heterogeneous network

Abstract

The invention belongs to the technical field of mobile communication, and in particular relates to a resource allocation method based on one-to-many matching in a heterogeneous network. The resource allocation method comprises the steps of: obtaining position information of other multiplex users by multiplex users, and constructing a conflict set among the various multiplex user and other multiplex users by utilizing the position information; calculating utility functions of the various multiplex users by utilizing a rate maximization criterion, and solving a preference list of the multiplex users on sub-channels; calculating interference of all the multiplex users on macro cell users on the sub-channels by utilizing an interference minimization criterion, and solving a preference list ofthe sub-channels on the multiplex users; and, when normal communication of the macro cell users is ensured, on the premise that the multiplex users and the multiplex users in the conflict set are notallocated under the same sub-channels, and, by adoption of a one-to-many matching method, allocating the sub-channels for all the multiplex users according to the preference list of the multiplex users on the sub-channels and the preference list of the sub-channels on the multiplex users. By means of the resource allocation method based on one-to-many matching in the heterogeneous network in the invention, the calculation complexity can be reduced; and interference in the same layer can be reduced.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and specifically relates to a resource allocation method based on one-to-many matching in a heterogeneous network. Background technique [0002] In recent years, with the popularization of smart terminals, mobile Internet and various wireless services, mobile communication data traffic and the number of device connections have shown explosive growth, so the demand for capacity and coverage of wireless networks is getting higher and higher. The traditional macro cellular network mainly provides wide-area coverage, which is difficult to meet the increasing traffic demand in today's extremely scarce wireless spectrum resources. In order to meet the possible needs of future wireless communication networks, deploying Small Cells (small cells) in traditional macrocellular networks and introducing Device-to-Device (D2D) communication technology is considered to be a very effective and A lo...

AI Technical Summary

Problems solved by technology

However, there are relatively few studies on the resource allocation problem in the multi-layer heterogeneous network composed of macro cells, Small Cells and D2D. In the existing literature, the research is mainly on the resource allocation problem of D2D users when D2D is introduced into the Macro Cell / SmallCell network. , less consideration is given to the interference management problem when the small cell users and D2D users in the multi-layer heterogeneous network multiplex the spectrum resources of the macro cell users

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