D2D (Device-to-Device) multicast resource allocation method in wireless network virtualization scene

Abstract

The invention belongs to the technical field of wireless communication, and discloses a D2D (Device-to-Device) multicast resource allocation method in a wireless network virtualization scene. A virtual network operator implements virtualization of a physical network according to service types of users; according to geographic positions of the users and requested service contents, a cellular user group and a D2D multicast user group are determined; according to a service type required by each group of users, the cellular user group and the D2D multicast user group are partitioned and signed todifferent virtual networks; and each virtual network operator carries out base station selection, frequency band allocation and power control for the multicast user group signed to the virtual networkoperator, and in the major premise of ensuring limitation to a user communication rate and resources of the multicast group, the aim of maximization of system throughput is fulfilled. According to the invention, by combining a D2D communication technology with a multicast communication technology, the spectrum efficiency of a system can be promoted; and a wireless network virtualization technology is introduced, so that the users can acquire services with high service quality and high experience quality.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for allocating D2D multicast resources in a wireless network virtualization scenario. Background technique [0002] With the rapid increase in the number of users and the diversification of user equipment and business types, the traditional communication mode has been unable to cope with the greatly increased spectrum consumption, energy consumption and other issues. In order to meet the efficient transmission requirements of mobile users in the cellular network, a new communication mode has emerged in recent years, which combines D2D communication with multicast communication. In 2016, "Social-Aware Video Multicast Based on Device-to-Device Communications" published by YangCao et al. in "IEEE Transactions on Mobile Computing" ("International Institute of Electrical and Electronics "("Socially Conscious Video Multicast Scheme Based on D2D Comm...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the combination of D2D technology and multicast technology in the existing technology is immature, and the resource allocation between cellular users and D2D users is only realized for a single type of network or a single type of service

Using a traditional single physical network to provide diversified data services makes it difficult to take into account the experience requirements of multiple users for different services

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