Research On Intelligent Computing Offloading Model For The Internet Of Vehicles Based On Blockchain

With the rapid development of 5G,artificial intelligence and other new-generation information technologies,the Internet of vehicles,as an emerging industrial form with deep integration of multiple industries and disciplines,has attracted extensive attention from academia and industry.At present,a large number of emerging applications such as augmented reality,virtual reality and ultra-high definition streaming media have emerged in the Internet of vehicles,causing intelligent vehicles to face problems such as computing power,reliability and cost when dealing with computation-intensive and time-delay sensitive emerging applications in multi-business scenarios.How to use edge computing,blockchain and other emerging technologies to solve this key problem has become the focus of domestic and foreign scholars.Aiming at this problem,this paper studies the offloading model of intelligent computing of Internet of vehicles based on blockchain.The main contributions of this thesis are as follows:(1)An intelligent computing offloading model of Internet of vehicles base on blockchain is proposed.Base on the detailed offloading process of intelligent computing in The Internet of vehicles,and the credit evaluation mechanism of Internet of vehicles users is proposed.Through the credit evaluation of intelligent vehicle users and Rsus in the Internet of vehicles,malicious users are identified and security is guaranteed for the unloading process of intelligent computing.(2)The offloading decision method base on improve PBFT consensus mechanism is proposed.Aiming at the offloading decision problem in the intelligent computing offloading model of the Internet of vehicles,the offloading decision model base on improved PBFT consensus mechanism was established.The offloading decision problem under the constraint of time delay and energy consumption was solved by the DDPG-based offloading decision algorithm,so as to obtain the offloading decision scheme that can optimize the total cost of the system.(3)The resource allocation method base on block reputation is proposed.Aiming at the resource allocation problem after the offloading decision scheme is determined in the intelligent computing offloading model of the Internet of vehicles,a resource allocation model baseon block reputation is established.The resource allocation algorithm based on KKT conditions is used to solve the resource allocation problem under various constraints to achieve efficient and fair allocation of MEC computing resources under the premise of reliable resources.