Secure Resource Allocation In Blockchain-enabled Radio Access Networks

With the development of wireless communications,the application of new information technologies in 5G and future 6G networks is gaining attention to support the needs of diverse information sharing.Blockchain radio access network may be a service architecture and technology proposed for resource allocation in the face of information sharing challenges,which may have an impact on radio resource allocation,network control methods and service security of existing mobile networks.For the complex resource allocation problem of traditional wireless systems,auction mechanism and genetic algorithm may be candidate methods,but in the face of resource allocation in zero-trust network scenarios,a new resource allocation strategy needs to be sought.Secondly,the control method of traditional radio access network and core network is often centralized,but the blockchain radio access network tries to introduce the concept of decentralization.In the access wireless network of a large number of Io T users,the centralized solution may not be able to deal with the problem of resource allocation very well,resulting in a greatly reduced efficiency of resource allocation.Therefore,a distributed security resource allocation strategy is urgently needed to deal with the access problem of massive Io T users.The blockchain uses asymmetric encryption algorithms and consensus mechanisms to achieve decentralization,transparency,openness,tamper resistance,and traceability.Due to this distributed feature,blockchain can quickly establish trusted communication and transaction scenarios in an untrusted,networked environment.In this scenario,the blockchain reaches consensus and ensures the smooth operation of the system by adding a consensus algorithm,thus avoiding the addition of a third-party certification body.Since this paper will consider a new type of service in which multiple operators participate in the transaction,it supports wireless access of massive Io T users in a distributed control manner.At this time,for the alliance chain composed of multiple operators,the massive Io T users are untrustworthy or lack trust.How to allocate resources or channels to these users is the challenge they face.The basic idea of this thesis is to seek a secure resource allocation method in wireless access network by applying blockchain.Firstly,according to the service mode between existing operators and mobile users,a blockchain-based resource sharing network framework under 5G access network is proposed,the management scheme and specific implementation are analyzed,and possible challenges are sorted out;Secondly,considering a scenario of multi-operator access to support largescale Io T users,a consensus mechanism and a distributed resource allocation strategy based on convex optimization are proposed,which is easy to solve the resource allocation among users with different priorities Problem;Finally,consider a zero-trust network scenario in which user prior information is lacking and users may compete to use limited resources.Aiming at this network scenario,a resource allocation strategy based on deep reinforcement learning is discussed.Energy efficiency is used as the reward and punishment value,and deep reinforcement learning is used to find the optimal allocation strategy.