Design Of Content-Centric Mobile Network And Caching Research

With the rapid development of mobile Internet,mobile Internet applications have been applied in all fields of social life and become an important part of daily life and work.However,with the increasing size and scale of mobile Internet users and the emergence of new application models the scalability,security and manageability of mobile networks as well as energy consumption in face of unprecedented challenges.In the meantime,in order to solve the current problems of scalability,mobility,controllability and QoS guarantee of the Internet,a series of researches on the future network architecture have been done.As one of the future network architectures,Information Centric Networking(ICN)introduces the content-centric concept which avoids the mobility and security issues in TCP/IP.Although both academia and industry have done a lot of work on mobile networks and information center networks,the research on introducing ICN into mobile networks is still at an early stage of exploration.The combination of the two has relatively few achievements.Therefore,realizing the integration of information center network and mobile network provides a new way to solve the current mobile network problem,which is of great significance for the design of mobile network architecture adapted to the future mobile network environment and demand.In this paper,we focus on the research of the integration of ICN and mobile networks,based on Content Centric Networking(CCN)architecture,user demands and communication features in mobile scenarios.The mobile content center network architecture MCCN(Mobile)Content Centric Networking.MCCN overcomes the limitation that end-to-end communication cannot be achieved in CCN by regulating the naming of data packets,and realizes content-oriented data transmission in mobile networks.In addition,in order to maximize the utilization efficiency of storage resources and improve the cache hit rate in the network,this paper proposes a cache policy in the MCCN based on the data and link capacity,cache space and topology information of network.Compared with LCE and LCD policies in CCN,the cache policy in MCCN is superior to LCE and LCD in terms of the effective utilization of storage resources in the network and the cache hit ratio.