A wireless virtualization resource management and allocation method based on relay network

Abstract

The invention discloses a wireless virtualization resource management and allocation method based on a relay network. The relay network first judges whether to use a full-duplex relay station according to the self-interference elimination status and channel state information in the full-duplex relay network. , to dynamically adjust the relay mode. On the premise that the relay mode can be switched freely, the virtual resource allocation problem is modeled. First, the definition of utility functions of users and service providers is given. Second, under the premise of considering multiple different constraints, the joint virtual resource allocation problem is modeled as a centralized optimization problem with the goal of maximizing the total utility of all service providers. So a resource management algorithm is designed. Under the premise of considering the basic requirements of wireless network virtualization, the method of the present invention makes full use of the advantages of network virtualization and full-duplex relay technology, and jointly optimizes the problems of relay mode selection, base station selection, relay selection, carrier and power allocation .

Description

technical field The invention relates to the field of communication technology, in particular to a relay network-based wireless virtualization resource management and allocation method. Background technique Wireless network virtualization has become the focus of attention in recent years. The basic idea of ​​network virtualization is to divide the role of the traditional Internet service provider (ISP) into two logical roles: infrastructure provider InP and service provider SP. Infrastructure providers create and manage physical infrastructure, service providers rent virtual resources from multiple infrastructure providers InPs, operate and program them, and provide various services to end users. In other words, a virtualized wireless network is the process of abstracting, fragmenting, isolating and sharing wireless resources. With the huge growth of wireless services and traffic, extending virtualization from wired networks to wireless networks has become an inevitable tr...

AI Technical Summary

Problems solved by technology

Although some research topics introduce wireless resource virtualization into the full-duplex relay network, the performance of the full-duplex relay network may not be as good as that of the half-duplex relay network when the interference elimination is not complete or the channel state changes significantly. performance

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