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无线蜂窝网络中相同的数据内容被大量重复传输,造成了网络能耗的增加和无线资源的浪费.然而,现有无线蜂窝网络并不关注所传输数据的实质内容,并对所有移动用户提供无差别服务,因此无法解决这一传输冗余问题.在分析移动用户行为的基础上,结合无线蜂窝网络和数字广播系统的优势,提出了以用户为中心、具有数据业务内容动态感知能力的软实时服务机制,降低无线蜂窝网络的传输能耗和无线资源消耗,同时提升移动用户体验的服务质量.本文给出了业务内容流行度预测、用户信息访问行为预测、动态多播小区构建与内容推送等算法设计,并建立了系统的性能模型,揭示了系统参数与系统性能之间的关联.经过公共网络新闻类信息访问的实测数据模拟验证,在理想的预测算法下,广播排名前10%的热门网络内容,可将蜂窝网络中的数据传输能效提升约2倍;经过校园网络在线学习场景的两个数据集模拟验证,在理想预测算法下,可将网络数据传输能效提高50倍.
However, existing wireless cellular networks are not concerned with the substance of the data being transmitted and provide all mobile users with no data So we can not solve the problem of transmission redundancy.On the basis of analyzing the mobile user’s behavior and combining the advantages of wireless cellular network and digital broadcasting system, we put forward a software-real-time with user-centered and dynamic perception of data service content Service mechanism to reduce the transmission energy consumption and wireless resource consumption of wireless cellular networks and improve the service quality of mobile user experience.This paper gives the forecast of business content popularity, forecasting of user information access behavior, dynamic multicast cell building and content push Algorithm design, and set up a system performance model, revealing the relationship between system parameters and system performance.After the public network news information access to the measured data simulation verification, in the ideal prediction algorithm, the radio ranked the top 10% Network content, data transmission in cellular networks can improve energy efficiency about 2 times; after school Park network online learning scenario simulation of two data sets, in the ideal prediction algorithm, the network data transmission can improve energy efficiency 50 times.