Evolution of Return-Path Cable TV Access Technologies toward Fiber-To-The-Home Network Architecture

摘要

The return-path of a dense wavelength-division-multiplexed cable TV access network architecture using time-division-multiplexing and frequency-stacking methods is reviewed. Digitizing the return-path bandwidth provides significant cost savings while maintaining network transparency and flexibility. A deep-fiber dense-wavelength-division-multiplexed network with a parallel-switched Ethernet architecture is advantageous to passive optical network architecture since it provides a flexible cost-effective migration path toward fiber-to-the-home network architecture.