Wireless virtual resource management and allocation method based on relay network

Abstract

The invention discloses a wireless virtual resource management and allocation method based on a relay network. According to the relay network, whether to use a full duplex relay power station or not is judged according to self-interference elimination condition and channel state information in a full duplex relay network and a relay mode is dynamically adjusted. On the premise that the relay mode can be freely switched, a virtual resource allocation problem is modeled. User and service provider utility functions are defined. On the premise of taking various different constraint conditions into consideration, a joint virtual resource allocation problem is modeled into a centralized optimization problem with the purpose of maximizing all service provider total utility, so the resource management algorithm is designed. According to the method provided by the invention, on the premise of taking wireless network virtual basic demands into consideration, the advantages of network virtual and full duplex relay technologies are utilized fully, and relay mode selection, base station selection, relay selection and carrier and power allocation problems are jointly optimized.

Description

technical field [0001] 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 [0002] 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 ...

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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