Re: [Discuss-gnuradio] IEEE 802.11 Transceiver Module - Timing offset at receiver side

[Bastian Bloessl]

Hi,


On 06/04/2017 04:25 PM, Qurat-Ul-Ann Akbar wrote:
> Thank you for the explanation. Can you tell me which antennas did you 
> use for your experiments when you wrote your paper? Because I think a 
> major problem with my receiver is a very low SNR because everything 
> works fine with simulations. Currently I am using Vert 2450 antenna with 
> my USRP N210.

I used the same setup with the Vert 2450 antennas.

Best,
Bastian


> On Sun, Jun 4, 2017 at 12:33 PM, Bastian Bloessl <address@hidden 
> <mailto:address@hidden>> wrote:
>
>     Hi,
>
>     On 6/3/2017 9:11 PM, Qurat-Ul-Ann Akbar wrote:
>
>         Hello,
>
>         How is the timing offset being handled in the 802.11 module. I
>         see that the sync_long block does frequency offset correction
>         and the frame_equalizer block does the phase correction but I
>         dont understand where is the timing offset being handled. Can
>         anyone tell me which algorithm is being used to do that?
>
>
>     The Sync Long block correlates the signal with the known pattern of
>     the long preamble to derive how the FFTs have to be aligned in time.
>
>     Best,
>     Bastian