We spoke on "All-digital Networks" in a session titled "They're Just Over the Horizon: Emerging Technologies, Friend or Foe?" Our speech talked about the emergence of all-digital networks and suggested that cable operators should start thinking about a future without analog television.
We discussed the emergence of all-digital networks - where all services including video are carried in digital formats, usually with IP over Ethernet over fiber. As everything goes digital, these networks are being deployed in Europe and Asia. In the United States, a few are being deployed as "community networks" in areas unserved or "underserved" by incumbent broadband providers.
We observed that cable systems, even those under construction today, are optimized for analog television, with 6 MHz channelization and and highly aymmetric "low split" configuration. We suggested that cable operators consider the timing and benefits of an "all digital" approach based on their hybrid fiber-coax (HFC) cable infrastructure.
Please see our talk at ( www.BroadbandHomeCentral.com/presentations/BBP 2002.ppt ).