|
Jan 17th, 2007 at 11:57pm
It is an impressive idea and I've tried experiments with both TV (Amino STB) and Audio (podcast) via the internet. It was very expensive both to send and receive, far more than I could afford, since every viewer had to pay the full cost of a transmission from origin to destination. With many people simultaneously receiving unicast streams my server was soon putting out several Mbit/s. This was technically not a problem - the cost implication was however. I would be interested to know how this new software works. Where does the TV start out and how does it get to each viewer. Does each viewer re-transmit the packets to a further couple of nearby viewers perhaps, like a gradually spreading tree ?
An attractive application seemed to be within large private wired LAN networks (e.g. hospitals, hotels, business, campus) where the routers are all managed and can be multicast enabled - also where there is much etherent capacity unused.
Satellite IPTV broadcasting seems economically feasible since the transmission cost is once only and you can have multiple viewers. It should be is no technical problem adding IPTV multicast to our VSAT outlinks. It does need a critical number of viewers however to pay up front to get the service started.
Best regards, Eric.
|