Hi, Thank you. I got it! I have another question. In the OFDM Carrier Allocator block, there are 127 values for pilot symbols each of them either (1,1,1,-1) or (-1,-1,-1,1). The pilot frequencies are (-27,-7,7,21) according to IEEE 802.11 standard. But I do not understand why are there 127 symbol values. Can you kindly explain that ?
On Mon, Mar 20, 2017 at 12:09 PM, Bastian Bloessl <[email protected]> wrote: > Hi, > > > > On 20 Mar 2017, at 17:50, Qurat-Ul-Ann Akbar <quratulannakbar2015@u. > northwestern.edu> wrote: > > > > If I want to make changes in the PHY hierarchical block, can I just make > changes in the grc file available in the examples folder and then recompile > ? Because I cant file a .cc file in the lib folder in IEEE_802.11 module > and the source code for most blocks is in there. > > > > I’m afraid I don’t get the question, but if you don’t see any .cc files in > the lib folder, you might want to clone the repository again, because > actually there are some > > https://github.com/bastibl/gr-ieee802-11/tree/next/lib > > If you only change the flow graph in GRC, you don’t have to recompile the > module (i.e., recompile c++ code). Just click on the “generate” button (or > press F5) this will rebuild the PHY. Then the other flow graphs will > automatically use the new version of the PHY. > > Best, > Bastian
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