[opendtv] Re: Seeing Ghosts on a Single Frequency Network

Excuse the lack of details. This is a 'work in progress'.

I will have a much more meaningful slide deck after I finish work on the "Next Generation Broadcast Television" paper for the ATSC HPA symposium. Mike Simon/Rohde&Schwarz is the chief engineer part of this effort. The idea is being 'socialized' for the benefit of all. ;-) The slide deck presented had just been started, but when you have an opportunity to 'stir the pot', you take it!

It is my firm commitment to have Broadcasters fully engaged by year's end in defining their future as collaborative shareholders of spectrum.

Mark
the Mark that is spreading a new vision of future possibilities...

On 2/7/2011 4:41 PM, Manfredi, Albert E wrote:

Ron Economos wrote:

The Bendov paper was not why I posted that link. Mark Aitken
had already posted a link to that. I was much more interested
in Attachment 1, which is a completely "thinking outside the box"
proposal for next generation digital television.

http://fjallfoss.fcc.gov/ecfs/document/view?id=7021027035

I had a hard time following that, the first time around at least.

Sounds like, take Ch 38-51. From those create four LTE channels. Use each of the four LTE channels to offer a mix of services simultaneously, time-multiplexed -- which, due to the nature of COFDM, will also become frequency divided.

The mix would incorporate TV broadcast, but also other services, including IP Multicast downlink, and even the downlink for narrowband two-way service. A new frame header would be used to identify each of the services carried in each frame.

I especially liked:

"Above are for Marketing Purpose !"

when discussing spectral efficiency.

One thing is, MIMO techniques work best when the receiver and the transmitter can negotiate. I'm pretty sure you'll have a hard time achieving the 4X capacity increase with 4X4 MIMO in a broadcast mode. Sounds like something that might work in only very confined areas. Of course, more so with 8X8 MIMO.

To a few station groups, this could be a way to get them into a whole other line of work. Essentially, they could become the spectrum utility that Craig has advocated.

Bert
 
 
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