Posts for 'DOCSIS'

A short interview in Multichannel News with Rouzbeh Yassini before the Thanksgiving break last week caught my eye.

Rouzbeh's name is likely unfamiliar to many of you. But for others who have been in and around the cable and broadband industries since the '90s, he is semi-famous. In those days Rouzbeh ran a company called LANCity, which was a pioneer in designing and manufacturing cable modems. These of course are the devices that now reside in tens of millions of homes around the world, enabling broadband Internet access and the high-quality video services like YouTube, Hulu, iTunes and others that run through them.

Though it's only been about 15 years, the early-to-mid '90s seem like another age entirely. Can you remember dial-up Internet access? Busying up your phone line if you wanted to be online? Listening to all those weird tones as your creaky 56K modem connected you to Prodigy, CompuServe, AOL, or eventually this thing everyone seemed to be talking about called the "World Wide Web?"

In my opinion, Rouzbeh deserves as much credit as anyone for the transformation of the dial-up Internet era to the broadband world we now enjoy. He played a crucial role in articulating broadband's business potential to scores of senior cable executives who barely knew what a computer was, much less this new-fangled thing called the Internet. Importantly, he was a key technical architect of modern cable networks, which today barely resemble the passive, one-way networks of old.

In short, I've learned to take notice of Rouzbeh's prognostications. Though he can be irrepressibly optimistic, he's directionally right more often than not.

All of that brings me to his Multichannel interview. Rouzbeh now envisions the era of gigabit or 1,000 megabit Internet access within a decade. To put this in perspective, today's cable modems typically deliver around 10 megabit service or 1% of a gigabit. Spurred by competitive pressures, Comcast has recently announced the rollout of 50 megabit service to certain regions, with expansion to its entire footprint by 2010. These new rollouts are part of the cable industry's "DOCSIS 3.0" standards, covering a new generation of modems and channel management techniques.

There's an axiom in the broadband industry that usage always rises to the level of bandwidth provided. Yet when we're talking 1 gigabit service, one has to rightly ask, "what in the world are people going to do with all that bandwidth?" Rouzbeh posits things like corporate networking, remote offices, medical services and the like, but only touches briefly on video delivery.

From my perspective, video is the killer application that will drive this bandwidth explosion. As I wrote recently in "Video Quality Keeps Improving - What's it All Mean?" we are on the front end of a shift toward dramatically higher video quality, with near HD delivery already becoming common (Hulu, Netflix and Vudu are among the most recent to announce HD initiatives). This shift will only accelerate going forward. And to accommodate it will require lots more bandwidth from network providers.

In reality, the trickiest part of bandwidth expansion is less the technology development and deployment and more the business models that support the investments and make the most strategic sense. Questions abound: Is the right model to charge $150/mo for 50 megabit access as Comcast plans? Or to build a content service available only to those high-powered users? Or act like a CDN and provide services so as to charge content providers themselves to deliver higher-quality video? Maybe some hybrid of these, or some other model? And of course, what impact do these models have on the incumbent multichannel subscription video offering?

While there's murkiness now, like Rouzbeh, I'm a big believer that these things will ultimately be worked out and that bandwidth expansion is inevitable. Just as we now look back on the dial-up era and wonder how we got by, eventually we'll look at the mid-to-late 2000s and wonder how we survived on so little bandwidth.

What do you think? Post a comment now.