Do anyone know how to add pilot to sub-carrier in benchmark ofdm example?

GNU Radio
1

Hi guys,

Thanks in advance.

I am currently using Gnuradio 3.6. I want to use pilot to trace the
phase
offset in each ofdm symbol. However, I cannot see any pilot is added
in
ofdm benchmark example. Is there any example or project that has already
implemented pilot to trace phase offset? If no, which block should I
locate
to do the least modification.

Appreciate your great help.

Best,
Kay

2

On Tue, Aug 27, 2013 at 07:04:21PM +0800, Yingjie C. wrote:

Thanks in advance.

I am currently using Gnuradio 3.6. I want to use pilot to trace the phase
offset in each ofdm symbol. However, I cannot see any pilot is added in ofdm
benchmark example. Is there any example or project that has already implemented
pilot to trace phase offset? If no, which block should I locate to do the least
modification.

There is a detailed explanation in the manual.
http://gnuradio.org/doc/doxygen/page_ofdm.html

MB

–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin B.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-43790
Fax: +49 721 608-46071
www.cel.kit.edu

KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

3

Thanks for you reply, Martin. But seem some blocks in GRC example is not
compatible with the blocks in original benchmark ofdm example, I am
supposed that I need major modification if I use it.

2013/8/27 Martin B. (CEL) [email protected]

4

On Tue, Aug 27, 2013 at 07:59:48PM +0800, Yingjie C. wrote:

Thanks for you reply, Martin. But seem some blocks in GRC example is not
compatible with the blocks in original benchmark ofdm example, I am supposed
that I need major modification if I use it.

Yes, that’s right.

MB

Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin B.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-43790
Fax: +49 721 608-46071
www.cel.kit.edu

KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association