These researchers say this experiment proves it’s possible – but since it was done on what sounds like a pretty un-congested, high capacity WiFi network and transmitted just eight frames a second at 320×240 resolution to a television I would say the “success” is pretty heavily qualified.
I also want to know more about how complex and/or costly it was to do the last part:
The Internet broadcast was…
transformed to a video signal by a scan converter. … channeled into a video mixer and played in an experimental setting as a regular broadcast stream.
And of course I would really like to see how it looked on TV…
Still I am glad someone is out there trying to accomplish this stuff.
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A full HDTV (1080i) channel needs a bandwidth of 19Mbps using MPEG 4 compression. The channel can be broken up into 4 standard 480i signals of approx. 4.75Mbps each which is about 40% of the bandwidth of the current 11Mbps 802.11b. That is pretty close to the limit. Either 802.11a (54Mbps) or 802.11g(22Mbps) would be better. The article says they were keeping the bandwidth limited to 500-800kbps which is why they got the low frame rate.
Comment by Andrew — 12 February 2003 @ 12:09 am