Dual-structural edge networking paradigm: an analysis study in terms of multimedia content delivery

摘要

To eliminate the phenomenon of the digital divide in the area lacking Internet infrastructure support and accomplish the vision of "The Internet is for everyone" envisaged by Vint Cerf, our group pioneered a dual-structural edge networking paradigm, being utilized to construct a DSN (dual-structural network) for multimedia content delivery. The aim of this paper is to study multimedia content delivery capability for the edge networking paradigm. First of all, for further understanding the delivery capability, we formalize DSN in terms of network architecture and logical entity interaction and propose a hierarchical model and triple B model sequentially. Then, we propose a multi-dimension analysis methodology of multimedia content delivery for networking paradigm from a high-level perspective, in which network performance and user evaluation are taken into account. Further, according to the methodology, we design a specific comparative analysis model of multimedia content delivery capability for DSN, consisting of sub-model based on transmission performance and sub-model based on user utility. Lastly, we conduct direct and indirect comparative analysis studies by utilizing the model, and numerical results shed light on that DSN outperforms TCP/IP, NDN (named data networking) and BSN (broadcast-storage network) in terms of the delivery capability. Given this, we conclude that DSN is a more promising paradigm for multimedia content delivery.