Agree with all of Marcus' comments. However, the 150 to 326 Mbps
requirement may be quite difficult. To put things in perspective,
my run of the mill 3 GHz E5-1607 Xeon x86 processor can just
barely decode 16QAM DVB-T at 16 Mbps. You'll probably need a
high-end CPU with as many cores as you can afford.
On the DVB-T receiver, the most amount of CPU cycles are spent on
the Viterbi decoder which is why I asked what the FEC is. If you
need LDPC/BCH, performance is even more difficult to achieve.
Ron
On 08/23/2016 06:52 AM, Marcus Müller
wrote:
Hi Ihab,
1)
Frequency range: 1.5 - 38 GHz
since the B205 mini only goes up to 6 GHz, you're bound to use
an external mixer. The device you chose for that will completely
depend on your specific application's needs. Also note that
finding something that works as well at 1.5 GHz as it does on 38
GHz is probably pretty expensive, so and finding antennas that
work across that range isn't trivial, either. So I'd recommend
that, at least for a first prototype, you restrict yourself to a
smaller frequency range. If you stay below 6GHz, the B205 can do
that on its own
2)
Bandwidth range : 2 - 56 MHz
The B205 mini can definitely dot 56 MHz of bandwidth; the question
is whether your PC can process them fast enough and whether your
USB3 controller can sustain these rates.
3)
Modulation : Qpsk - 256 QAM
Well, that's just a question of software that you'll write :)
4) Data
rate range : 150Mbit/s - 326Mbit/s.
That sounds doable, considering the only limit here is Shannon's
channel capacity and your ability to write good software including
synchronizers, equalizers, channel codes etc.
5) Error
correction method : i thinks it is FEC.
Most definitely you'd want some channel coding.
Best regards,
Marcus
On 23.08.2016 15:34, Ihab Zine wrote:
_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio