美国基于新一代信息技术的信息基础设施发展情况

摘要

本文简要介绍了美国信息技术的整体发展情况，研究了当前美国信息基础设施基于新一代技术的几个热点领域，如频谱共享、分布式天线、网络功能虚拟化等，同时分析了美国学界对于未来信息技术研发的思考和判断。%This article briefly introduces the overall development of the IT technology in the US, studies several key domains in IT infrastructures based on latest technologies, such as the spectrum sharing, distributed antenna systems and network function virtualization, etc, and also analyzes the future IT R&D trends according to the perspective of US academia.