ofdm coding with Rayleigh channel

Hello all,

I am trying to simulate an algorithm for voice + data in order to send
throuhg a  Rayleigh Fading channel, by using lpc-10 (2.4 kbps) vocoder and
an ofdm channel (with 36 subcarriers)  and I realized some troubles related
to SNR and BER which are not good (i.e I expect 10e-6 for 14 db or more)
and the output is bad.
I was wondering if there is a trouble related to synchro. due to ofdm
coding uses synchronization.
If somebody has any suggestion or comment I will appreciate it.

Jorge Garcia
Peru

On Sep 12, 6:30 am, "jorgesan_garcia" <jorgesan_gar...@yahoo.com>
wrote:
> Hello all,
>
> I am trying to simulate an algorithm for voice + data in order to send
> throuhg a  Rayleigh Fading channel, by using lpc-10 (2.4 kbps) vocoder and
> an ofdm channel (with 36 subcarriers)  and I realized some troubles related
> to SNR and BER which are not good (i.e I expect 10e-6 for 14 db or more)
> and the output is bad.
> I was wondering if there is a trouble related to synchro. due to ofdm
> coding uses synchronization.
> If somebody has any suggestion or comment I will appreciate it.
>
> Jorge Garcia
> Peru

Jorge, here's how I read your post:

  "Hi, I have a system.  My system does not work.  Why?"

Do you think that anybody can understand what the problem is?