移动优先的智能内容获取与分发技术研究

项目名称： 移动优先的智能内容获取与分发技术研究

项目编号： No.61303241

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 吴玉磊

作者单位： 电子科技大学

项目金额： 23万元

中文摘要： 未来互联网应以移动作为网络设计和服务模式的核心，并以内容的高效获取和网络资源的节约为双重优化目标。百亿量级移动终端和用户需求给互联网带来了诸多挑战，如相同内容的冗余传输、大量突发请求和无效请求的出现，降低了内容获取与分发的效率。本项目研究面向移动优先环境的内容获取与分发技术，利用人与车辆的移动模型产生大量不同的、变化的需求，模拟移动优先环境中真实用户的行为特征，并提出协同内容服务器选择算法和分布式动态内容分发与迁移算法，基于网络带宽、计算、存储等资源进行多目标优化，通过模拟与仿真环境验证并评估算法的复杂度、获取与分发的时延、吞吐量、丢包率等重要指标。本项目面向海量移动设备涌现的未来，研究成果的应用可以从根本上改变互联网的服务模式和通信模式，全方位提升用户的服务质量体验。

中文关键词： 移动优先网络；智能网络；协同内容获取；动态内容分发；优化与性能分析

英文摘要： The mobility is the core of the network design and service model in the future Internet. The efficient access to the content and the conservation to the network resources are the two key objectives for the optimization of the future Internet. Ten billions of mobile devices and user requirements bring a variety of challenges to the Internet, e.g., redundant transmissionn of the same content, the emergence of large volum of bursts of requests and invalid requests, etc., and degrades the efficiency of content request and dissemination. This project investigates content request and dissemination technologies in the presence of mobility-first, taking advantage of the mobility model of human and vehicles to produce various and varying requirements and minic the behavior of realistic characteristics of users in mobility-first environments. Moreover, we propose the cooperative content server selection algorithm and distributed dynamic content dissemination and migration algorithm, consider the network resources including network bandwidth, computing capability and storage capacity as the inputs for multi-objective optimization, and carry out the validation and evaluation of the developed algorithms by means of extensive simulation experiments, including the complexity of the algorithms, and the delay, throughput and los

英文关键词： Mobility-First Network；Intelligent Network；Cooperative Content Request；Dynamic Content Dissemination；Optimization and Performance Analysis