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# Discussion Groups | Comp.DSP | Q: The definition of SNR (and SINR) in OFDM systems?

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# Q: The definition of SNR (and SINR) in OFDM systems? - levo - 2007-02-18 16:55:00

```I have a problem with the definition of SNR. We are working in a project
regarding to WiMAX systems and we would like to know how SNR is defined in
a WiMAX or in an OFDM system. In the WiMAX standard they didn't defined but
they use it. And we know that they didn't use the SNRë/N0 equation.

1, How should we calculate SNR in our simulations?

2, We also use the charachteristics of several sector antennas, so do the
manufacturers calculate the SNR values the way we should?

I've read this post about the SNR:
http://www.dsprelated.com/showmessage/34517/1.php

but I can't download the papers linked in the post. ( my university s a
limited accsess to the ieee site)```

# Re: Q: The definition of SNR (and SINR) in OFDM systems? - PARTICLEREDDY (STRAYDOG) - 2007-02-20 10:04:00

```hi levo,

please refer this paper..it will surely help you..........

http://whitepapers.techrepublic.com.com/whitepaper.aspx?docid5289

regards
particlereddy

On Feb 18, 1:55 pm, "levo" <szabol...@gmail.com> wrote:
>  I have a problem with the definition of SNR. We are working in a project
> regarding to WiMAX systems and we would like to know how SNR is defined in
> a WiMAX or in an OFDM system. In the WiMAX standard they didn't defined but
> they use it. And we know that they didn't use the SNRë/N0 equation.
>
> 1, How should we calculate SNR in our simulations?
>
> 2, We also use the charachteristics of several sector antennas, so do the
> manufacturers calculate the SNR values the way we should?
>
> I've read this post about the SNR:http://www.dsprelated.com/showmessage/34517/1.php
>
> but I can't download the papers linked in the post. ( my university s a
> limited accsess to the ieee site)```