Physical layer characterization of hybrid fiber coax (HFC) networks

摘要

This paper reviews the future prospects of cable tele- vision networks through their evolution towards HFC topology. This upgrade will allow cable operators to pro- vide full broadband bi-directional communications (image, data and voice) and generate new revenues from their existing network. This article focuses on; what is an HFC topology, what are the relevant parameters to cha- Racterize its physical layer, what are the technological Key issues and future trends?