 |
FPGA CentralWorld's 1st FPGA Portal |
|
|
|
|||||||
| DSP comp.dsp newsgroup, mailing list |
|
|
|
 |
|
|
LinkBack | Thread Tools | Display Modes |
06-20-2007, 10:51 AM
|
|||
|
|||
power spectrum OFDM with and without cyclic prefix
Dear all,
I want to know what is the difference of power spectrum of OFDM with no added cyclic prefix and power spectrum of OFDM with added cyclic prefix. Please help me to overcome this problem. Thanks in advance. Best regards, awi 
|
|
06-21-2007, 04:23 AM
|
|||
|
|||
|
Re: power spectrum OFDM with and without cyclic prefix
On Jun 20, 1:51 pm, awi <nmaed...@gmail.com> wrote:
> Dear all, > > I want to know what is the difference of power spectrum of OFDM with > no added cyclic prefix and power spectrum of OFDM with added cyclic > prefix. Please help me to overcome this problem. > > Thanks in advance. > > Best regards, > awi Should there be a difference. I do not think so. Krishna http://dsplog.blogspot.com
|
|
06-22-2007, 05:45 AM
|
|||
|
|||
|
Re: power spectrum OFDM with and without cyclic prefix
On Jun 21, 6:24 pm, julius <juli...@gmail.com> wrote:
> On Jun 20, 9:23 pm, Krishna <krishna.pil...@gmail.com> wrote: > > > Should there be a difference. I do not think so. > > > Krishnahttp://dsplog.blogspot.com > > There is a difference. > > Julius Why is the difference? Cyclic prefix is just the copying a portion of the symbol. Any pointers might be helpful. Krishna http://dsplog.blogspot.com
|
|
06-22-2007, 07:38 AM
|
|||
|
|||
|
Re: power spectrum OFDM with and without cyclic prefix
On Fri, 22 Jun 2007 03:45:53 -0000, Krishna <[email protected]>
wrote: >On Jun 21, 6:24 pm, julius <juli...@gmail.com> wrote: >> On Jun 20, 9:23 pm, Krishna <krishna.pil...@gmail.com> wrote: >> >> > Should there be a difference. I do not think so. >> >> > Krishnahttp://dsplog.blogspot.com >> >> There is a difference. >> >> Julius > >Why is the difference? Cyclic prefix is just the copying a portion of >the symbol. Any >pointers might be helpful. > >Krishna >http://dsplog.blogspot.com What would substitute for the CP if it's not there? Dead time or just eliminate the CP and butt the symbols up against each other? It'll make a difference... Eric Jacobsen Minister of Algorithms Abineau Communications http://www.ericjacobsen.org
|
|
06-22-2007, 03:03 PM
|
|||
|
|||
|
Re: power spectrum OFDM with and without cyclic prefix
On Jun 22, 12:38 am, Eric Jacobsen <eric.jacob...@ieee.org> wrote:
> > What would substitute for the CP if it's not there? Dead time or > just eliminate the CP and butt the symbols up against each other? > It'll make a difference... > > Eric Jacobsen > Minister of Algorithms > Abineau Communicationshttp://www.ericjacobsen.org Satisfactory solution of this problem may require that the students consider the relationship between the Fourier series and the Fourier transform, and to consider deeply what Eric said above ;-). Julius
|
|
| Bookmarks |
| Thread Tools | |
| Display Modes | |
Linear Mode
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Re:OFDM cyclic prefix and delay sprea | Zeph80 | DSP | 2 | 10-01-2006 12:27 AM |
| OFDM cyclic prefix/Equalization question | ramsay | DSP | 4 | 08-06-2006 10:06 AM |
| OFDM Cyclic prefix question | ramsay | DSP | 3 | 08-02-2006 06:01 PM |
| cyclic prefix in OFDM and precursor ISI | Zeph80 | DSP | 13 | 03-10-2006 03:38 PM |
| Cyclic prefix in OFDM causes cyclic convolution | Ant_Magma | DSP | 0 | 12-01-2005 02:50 AM |
All times are GMT +1. The time now is 02:50 AM.
