Content delivery in Smart Ubiquitous Network

As a large-scale content distribution becomes an important challenge in Internet, there are developed various approaches to address the challenge. ITU-T has standardized SUN (Smart Ubiquitous Network) as an evolved network concept that handles emerging Internet issues and now they are standardizing a functional architecture for content delivery in SUN. In this paper, we provide an overview of the functional architecture and operational procedures for content delivery in SUN.