Research On The Energy-Aware Pushing Schemes In The Wireless Converged Network

With the explosive growth in wireless digital media content,the traditional single network has been unable to meet the demand of user request.Therefore,the concept of wireless converged network arises at the historic moment.Energy consumption,including base stations and mobile device,is one of the major factors that greatly affect the user experience and the system efficiency.When we improve spectrum efficiency in the use of wireless heterogeneous integration network,considering the influence of the energy consumption on the user experience and energy saving is of important value at the same time.We first investigate how to use mobile energy efficiently and maximize the mobile use time.We first analyze the energy consumption model of mobile devices,establish the quantitative relation,thus obtain the content delivery model considering mobile energy,then we present the mathematical description for mobile devices in wireless heterogeneous converged network.For any user with specified residual energy,we try to maximize the equipment use time.At this moment,any user with non-zero remaining power will receive pushing content,but users with different remaining power choose to selectively receive content according to different power consumption accounted for the proportion of existing residual power.In this paper,we get the optimal relative proportion of residual power through analysis and simulation in order to make the equipment use time of mobile devices the largest.In general,the optimal proportion is between 20 percent and 40 percent.In addition,in this paper,the specified relationship is given out by theoretical analysis and simulation on network data transmission rate,power factor,residual energy of mobile devices.Thus we achieve the optimal parameters to maximize the mobile use time.In order to save the energy of the base station,we transfer the optimal problem to maximizing the user request offloading probability.We push contents to mobile users in converged network consisting of broadcasting,cellular and D2 D.When use request content,they obtain the target content from local storage,D2 D cluster and the base station in order.We maximize the request offloading probability by trying to find the balance between the cache hit ratio and the probability of successful connection in D2 D.We consider whether the users have cache,how many users having cache ability,the content popularity,and we get the system performance in different parameters and therefore give out the relationships among these parameters.In this paper,we consider the pushing problem of converged network in terms of energy consumption of base stations and mobile devices.We obtain the relationship between these parameters in different conditions,and give out the optimal value for parameters,thus we achieve the value of the study on the energy consumption in converged network.