Re: [Discuss-gnuradio] Equalization using channel estimates

[Martin Braun]

On 05.02.2014 06:51, Mohammed Karmoose wrote:
> Dear All,
>
> I'm trying to perform a simple way of equalization in OFDM transmission.
> I extracted the coefficients provided by the OFDM channel estimation
> block, and sent them back to the transmitter using a TCP socket.
>
> Are these coefficients valid to use in equalization, i.e., can I divide
> the transmitted symbols by the corresponding channel coefficients, and
> therefore achieve an almost unity channel taps?

This is impossible to answer. It depends on so many things. When done 
right, you *can* use channel coefficients to equalize, that's the whole 
point of channel estimation and equalization.

You might find the examples in gr-digital/examples/ofdm/*x_ofdm.grc helpful.

MB