[opendtv] Re: TI Exec: Open Standards Crucial for Mobile TV

Bert,

----- Original Message ----- 
From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>

> If you only use 25 percent more FEC, you are not creating a
> much more robust bitstream, John. But look at your
> documentation and see that they mention 1/2 or 2/3 FEC
> (presumably total) and 16-QAM or QPSK. Not 64-QAM.

Creating a more robust stream for mobile is optional.  COFDM already has 
quite an advantage in receviabilty.  It is the time slicing that saves 
power.  You could use HM modulation, or you could just stay with a single 
modulation method.  for the same data hit, you get a better received signal 
for the entire stream.

I doubt that the complicated equalizers of Nth generation ATSC chipsets will 
be very power efficient, nor will E8-VSB be mobile friendly.

John 


 
 
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