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Old 06-18-2009, 02:44 PM
priya
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Default Re: regarding zero padding and Cyclic prefix

On Jun 18, 11:43*am, "san3885" <santosh.3...@gmail.com> wrote:
> >On Jun 17, 8:44=A0pm, Porterboy 76 <porterbo...@gmail.com> wrote:
> >> > One more thing ,in a particular system 64 pt IFFT/FFT was taken .in
> >> > which 52 were carriers(48 data + 4 pilots) rest were zeros.
> >> > and 16 CP.

>
> >> This is from the IEEE 802.11 Standard.

>
> >ya but i want to know whats the advantage of padding zeros .

>
> Hi,
> Zero padding increases the sampling rate. In other words the resolution of
> the signal increases...
> Where as CP provides resistance against inter symbol interference..(ISI)
>
> Good Luck..


hi
you sure about it.Interpolation increases sampling freq , thats
true,but here we aren't doing the same we are appending zeros at the
end.
Will it really increase the resolution?

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