【摘要】 移动视频业务爆炸性增长对未来无线通信网络提出了更高的要求.缓存技术通过网络热点内容的复用,将极大缓解无线网络的传输压力,逐渐成为未来第五代移动通信系统中提升虚拟现实、增强现实以及超高清视频等服务用户体验的关键性技术之一.针对移动边缘网络中缓存技术的内容展开综述,并对缓存技术涉及的多个研究方向进行了分析.首先分析了移动边缘网络的架构,并对移动边缘网络缓存研究所具有的特性进行了概述;通过对缓存模式的分类,归纳整理了移动感知和社交感知场景的缓存技术,最后提出了移动边缘缓存技术的未来挑战与发展方向.更多还原

【Abstract】 The explosive growth of mobile video services puts forward higher requirements for future wireless communication networks.Caching technology will greatly decrease the radio resource pressure of the wireless network through content reuse.It is one of the key technologies in the 5th-generation mobile communication to improve the virtual reality,augmented reality and ultra high quality video services quality of experience.A survey on caching technology in mobile edge networks was given.Firstly,the architecture of the mobile edge network is analyzed,and the characteristics of the mobile edge caching are summarized.After the classification of the different caching modes,the technologies in mobility and social aware caching situations were concerned.Finally,the technical challenge and development directions of mobile edge caching are presented.更多还原