| reply to swhx7
Re: Boundary cases? said by swhx7:said by justbits:What happens when everybody in the neighborhood tunes in to a different channel? The probability may not be so low. ... But what about the practice of just flipping through the channels, one after another, to see what's on? SDV does not have to be implemented as an all-or-nothing strategy. If a node neighbourhhood is 500 TV STBs, and there are 500 channels from the cableco, you'd never get all 500 being used at once. So you could continue to send, via non-SDV, the most popular 100 channels, 24/7 -- and only switch the remaining 400. You'd still save masses of bandwidth which could be recycled for On Demand and HD uses. SDV, other than some software on the STB, is efficient network management magic at the head-end. The "neighbourhoods" can be reconfigured on the fly, if you wanted to, shrunken or enlarged, to suit usage patterns.
Between reclaiming analog spectrum and SDV, coax has a huge amount of life in it yet. |
