Design And Implementation Of Decentralized Wi-Fi Access Resource Dynamic Allocation Module

In recent years,with rapid development of Wi-Fi technology,Wi-Fi hotspots are distributed in many places.However,the resource utilization is not very high.The Wireless Shared Network(WSN)is a new type of network based on the concept of distributed services.By encouraging individuals to share private Wi-Fi access points,utilization of idle resources can be improved,becoming a trend in the wireless communications field.However,the current allocation of access resources is not reasonable enough.The profit cannot effectively motivate operators and services cannot satisfy all users,resulting in the enthusiasm for participation of them is not very high and the development of WSN market is still limited.Therefore,the research of dynamic allocation of Wi-Fi resources in the network environment has important theoretical significance and application value for promoting the construction and development of WSN.In the WSN,because of the scattered distribution of private Wi-Fi access points and limited resource capacity,if the allocation of the limited resource is unreasonable,the WSN cannot meet user access requirements.In addition,when different users access to different networks,the revenues of operators are different.The unreasonable allocation of resources makes the revenue lower.To this end,this paper researches on the resource dynamic allocation algorithm,then designs and implements a Wi-Fi access resource dynamic allocation module and applies the algorithm to it.Aiming at the problem that the Wi-Fi resource allocation in the WSN is unreasonable and the WSN can not provide satisfactory service for users while maximizing operator's revenue,a game-based Wi-Fi access resource dynamic allocation algorithm is proposed.First,aiming at maximizing total revenue,taking into account user satisfaction,establishing a dynamic allocation model of network access resources based on Starkberg Game.Secondly,through a two-stage game,the operator generates network-prices strategy which can motivate the users to select networks.A dynamic resource allocation algorithm based on particle swarm optimization(PSO)algorithm is proposed to obtain the optimal network price and resource allocation.Simulation shows that it can achieve reasonable allocation of resources which can maximize overall revenue while satisfying users.On this basis,aiming at the problem of traditional centralized WSN systems such as lower key security and unclear ownership of data,the research team designed a decentralized WSN system based on the blockchain technology.And I was responsible for designing and implementing the decentralized Wi-Fi access resource dynamic allocation module and applying the game-based Wi-Fi access resource dynamic allocation algorithm to it.First,use the Fabric platfonn to build the blockchain network.Wi-Fi resources are registered as communication assets on the blockchain.On this basis,select Node and Java as the application development language to access to the Wi-Fi resource in the blockchain network.And select Go as chain code language to develop transaction execution logic.The module is divided into 7 sub-modules including sharer client,user client,resource dynamic allocation sub-module,connection sub-module,disconnection sub-module,security sub-module,and billing sub-module.The network resource dynamic allocation sub-module is to implement the algorithm in the chain code to ensure reasonable resource redistribution when Wi-Fi connection or Wi-Fi disconnection is carried out.The test result shows that Wi-Fi connection request and disconnection request both can trigger the dynamic re-distribution of resources ensuring the optimal distribution of Wi-Fi resource and ensuring the overall revenue of operator and user satisfaction.In addition,the security of key information can be guaranteed and return resource ownership to the sharer in the process of providing services to users.