White Paper
Distributed Access Architecture: Choices, Challenges and Considerations
This technical paper examines Distributed Access Architecture (DAA) as the next evolution of hybrid fiber-coaxial (HFC) networks for supporting gigabit broadband services. It explains how moving network processing closer to subscribers through Remote PHY and Remote MAC/PHY architectures improves bandwidth capacity, signal quality, operational efficiency, and network scalability while reducing headend space, power consumption, and maintenance complexity. The paper compares the advantages and trade-offs of both deployment models, discusses interoperability, security, maintenance, and operational considerations, and provides guidance for broadband operators planning DOCSIS 3.1 and future network upgrades. It concludes that while no single DAA strategy fits every provider, careful planning ena
