Energy-Efficiency Aware Cooperative Cache Strategy And Routing Forwarding Strategy In Content Center Network

With the popularity of the internet,the number of online entertainment users continues to grow rapidly,and network traffic such as online games and online video has increased exponentially,and the energy consumption of the Internet has increased a lot,so the traditional network architecture has become overwhelmed.CCN(Content-Centric Networking)regard data content as the center to realize data distribution.which changed the traditional host-to-host communication method,users request content by content name.Each content router in the CCN has a caching capability.The user can obtain the requested content through the cache in the content router.This new content acquisition method effectively shortens the transmission distance of the content and improves the distribution efficiency of the network content,The energy consumption of the content center network mainly consists of the cache energy consumption of the cache contents of the network nodes and the transmission energy consumption of the content transmitted in the route.Therefore,the network caching strategy and the route forwarding strategy of the content center network determine its performence and energy efficiency.This article studies the optimization of CCN's caching strategy and routing forwarding strategy.(1)In optimizing the caching strategy of CCN,firstly,an energy consumption model for content distribution is built and a judging condition for energy efficiency optimization in caching is designed.And in combination with content popularity the node centrality,a method is presented to calculate the probability that the content is cached by the node.Use the probability to measure the Content cache priority,then consider the Content cache priority and the Energy Efficiency Decision Conditions together,on this basis,an energy efficiency aware cooperative caching strategy(EEACC)is proposed.Simulation results demonstrate that the proposed strategy can effectively reduce the whole energy consumption,with guaranteeing comparatively high cache hit and few average hops.(2)The CCN routing strategy is one of the key technologies of the CCN.A good routing mechanism can fully exploit the cache performance of the node,reduce redundant traffic between networks,and reduce the transmission energy consumption between networks.Guaranteeing transmission efficiency and transmission cost is the key to setting routing policies.we consider the caching of neighboring nodes and put forward the cautious routing forwarding strategy of adjacent nodes in CCN based on the ant colony algorithm.The ant colony algorithm is used to find out the optimal transmission path of the data packet in the CCN,and the cooperative cache node detection mechanism detects the cache information in the cooperative cache node to generate a cooperative cache table,The comparison of simulation results shows that the proposed algorithm has achieved good results in reducing network average delay and controlling redundant traffic.