Inter-domain Trustworthy And Personalized Routing Based On Crowdsourcing

The fifth generation mobile communication technologies are developing rapidly and becoming commercialized gradually,making the Internet of everything,new scenes such as smart home,automatic driving and smart city have emerged in real life.The increasingly enriched telecommunication ecosystem has attracted many traditional industries to use 5G mobile network services.Howerver,the researchers expect that the future network can absorb many types of networks,the satellite network and UAV network can be integrated with terrestrial networks.The future network integrates diverse type of network,and contains a large number of devices,is becoming a large scale heterogeneous network.In the large scale heterogeneous network,there will be an increasing number of inter-domain requests produced,but the literature is still lack of a significant method to satisfy the diverse requirements of inter-domain communication established by network applications.Therefore,the problem that how to satisfy the requirements of network application for communication performance need to be addresssed.With the development of the cyber security,the International Telecommunication Union proposes that the trust provisioning in the network is expected to reduce the network security risk,and put forward the concept of trusted network.Trust evaluation needs to be established between network elements,and the communication based on trust evaluation has higher security.However,there is no relevant solution to solve the problem that how to embed trust into the network and satisfy the requirements of users on the network path’s trust,so this problem has a research significance.Among the current inter-domain methods,most of them are transmits messages passively:passively receiving network messages and transmitting the messages according to the routing strategies.This passively transmitting style probably not only violates the communication needs of users,but also is not conducive to the network domain to actively select the network communication with high profit.Therefore,how to empower the network domain to:actively participate in inter-domain routing,assign the transmission path that meets the needs of communication and take into account the network profit at the same time is a problem with practical significance.In view of the above problems,this thesis first introduces the current related works at home and abroad,and summarizes the related literatures.Aiming to cover the shortages of the literatures,this thesis mainly carries out the following work:1.design an inter-domain trustworthy and personalized routing method based on crowdsourcing.This method can meet user’s trust needs on inter-domain path,satisfy the user’s personalized requirements on inter-domain paths,and empower the domain to actively participate in inter-domain routing.This method makes use of the distributed,decentralized and tamper proof advantages of blockchain to accomplish the trust attestation of each domain’s border routers,based on the trust of the border routers,it can construct a trusted inter-domain path to meet the user’s trust needs on inter-domain path;This method uses the crowdsourcing mechanism,by auctioning the routing,embedding the requiremnts and other information into the messages of each stage of the auction,and designing the numerical representation of inter-domain path attributes,it promotes many network domains to actively participate in the route auction and complete the selection of inter-domain path at last.By applying crowdsourcing,this method empowers the network domain to actively participate in the inter-domain routing,and supports the inter-domain path to meet the communication needs of users.2.compare the function and performance of the designed method with relevant researches.The comparison results show that the designed method can meet the user’s trust needs on inter-domain paths and satisfy the user’s personalized requirements for inter-domain communication;it also allow the network domain to actively participate in inter-domain routing and execute the trust evaluation of the network domains,while keeping the overall performance cost close to relevant methods.In detail,this thesis simulates the blockchain environment and the inter-domain routing process.The simulation results show that this method is able to satisfy user’s trust need on inter-domain path and personalized requirements for inter-domain communication.Moreover,the additional overthead brought by the method is acceptable.