Resourse Allocation In Wireless Network Virtualized Based On Contract-auction Theory

With the rapid development of society,people have put forward higher and higher requirements for wireless networks.The exponential increasing in the number and types of mobile terminal service requests and the increasing capital and operating expenses in wireless networks have hindered service providers introducing the modern technology.Wireless network virtualization,as one of the key technologies of wireless communication,can effectively solve these problems.However,in wireless network virtualization,its resources are limited.How to allocate and utilize these resources effectively and reasonably is still a difficult point that needs to be solved urgently.Therefore,this article proposes allocation strategies and schemes for the resource allocation issues in wireless network virtualization,according to different communication scenarios,different resource allocation schemes are designed,and corresponding algorithms are proposed.The main contents of this article are as follows.First,for virtualized wireless network with symmetric information,an optimization plan for resource allocation is proposed.This solution establishes a system model in which infrastructure providers and multiple mobile virtual network operators coexist,and decomposes the problem into the sub-problem of resource allocation quantity and the subproblem of resource allocation price.At the same time,infrastructure providers and mobile virtual network operators can dynamically set resource prices and resource quantities.Aiming at the process of resource allocation,in order to optimize system energy efficiency,we proposed an allocation algorithm based on contract theory and auction theory.Secondly,for virtualized wireless networks with asymmetric information,a distributed algorithm is proposed to optimize the utility function of infrastructure providers and mobile virtual network operators.In the proposed scheme,a system model in which multiple infrastructure providers and multiple mobile virtual network operators coexist has been formulated.To reduce the complexity of the problem,the resource allocation process is divided into two phases: the contract phase and the auction phase.Utilities for infrastructure providers and mobile virtual network operators are maximized by optimizing resource allocation prices and resource allocation quality.According to the proposed algorithm,the optimal resource allocation price and the optimal resource allocation quantity are obtained.Finally,this paper conducts extensive simulations on the proposed resource allocation strategy based on contract and auction theory and the resource allocation strategy based on contract-auction theory,and compares,verifies and analyzes the experimental data,which has verified the effectiveness of the scheme proposed in this article.