Cable Confronts Bandwidth Crunch
JANUARY 24, 2007
Shaking off two years of disbelief and dismay, the cable industry has finally started dealing with the prospect of an impending bandwidth shortage.
Cable operators and equipment suppliers, alarmed by an explosion in bandwidth use by cable subscribers over the last couple of years, are now drawing up plans to boost capacity at both the headend and plant levels. Instead of debating whether the coming bandwidth crisis is genuine, they're looking at ways to confront the crisis by splitting fiber nodes in half, converting systems over to more efficient switched digital video delivery, testing pre-Docsis 3.0 channel-bonding technologies, and expanding their systems' RF capacity to 860 MHz or 1 GHz.
Cable technology strategists are also looking at boosting their QAM power, instituting out-of-band spectrum overlays, and upgrading to MPEG-4 video compression standards. They're even weighing such previously unthinkable moves as building fiber-to-the-home (FTTH) networks and adopting PON architecture, just like some of the big phone companies.
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