Re: [Discuss-gnuradio] gr-ieee802-11 and the blocks with multiple inputs

Hi, On 02/07/2018 06:57 AM, Halit Bugra Tulay wrote: 1) The one working with 3 separate null sinks ( https://imgur.com/a/siXZN ) 2) The one that does not work ( https://imgur.com/a/BFTol ) As similar to what I observed before, the first one keeps communicating without a problem while the secon

[Discuss-gnuradio] gr-ieee802-11 and the blocks with multiple inputs

Hello everyone, I have been working with gnuradio for a month and this might be a dumb question. I will be happy if you help me with the following problem. I have been using gr-ieee802-11 to transmit and receive IEEE 802.11 frames. I have an X300 with 2 TwinRX to receive from 4 channel and another

Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

Hi, > On 8. May 2017, at 09:00, Thom L wrote: > > IIRC, it shows the autocorrelation of the signal. If you add a trigger to the > default plot (level ~0.56) you should see the characteristic plateau of the > short training sequence at the beginning of frames (this is used for frame > detecti

Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

Hi Bastian, IIRC, it shows the autocorrelation of the signal. If you add a trigger to > the default plot (level ~0.56) you should see the characteristic plateau of > the short training sequence at the beginning of frames (this is used for > frame detection). Ok that's right? But I don't understa

Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

> On 7. May 2017, at 21:27, Thom L wrote: > > Hi Bastian, > > Le 7 mai 2017 22:10, "Bastian Bloessl" a écrit : > > The red line is the complex component (which is around 0), while the blue > line shows the real part (which jumps between 1 and -1). > > Yes but it jumps at sample rate 20M and

Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

Hi Bastian, Le 7 mai 2017 22:10, "Bastian Bloessl" a écrit : The red line is the complex component (which is around 0), while the blue line shows the real part (which jumps between 1 and -1). Yes but it jumps at sample rate 20M and not 6M? What I would is to see the bit rate Thank you for yo

Re: [Discuss-gnuradio] gr-ieee802-11 wifi signal bitrate

Hi Thomas, > On 7. May 2017, at 09:21, Thom L wrote: > I added a time block sink and watched the signal in 6M mode (sampling rate is > 20M) but I can not interpret the result (cf attachment). Well I do not have > to look at the right place or the right way .. I’m not sure what you are trying t

Re: [Discuss-gnuradio] gr-ieee802-11 Checksum

Then I'm sure you've found the "checksum" text in the source code, so I think it would be time to ask a more precise question! On 03/28/2017 02:45 PM, Ayan Chatterjee wrote: > > I want to modify the blocks from ieee 802.11 next > > > On Mar 28, 2017 18:14, "Ayan Chatterjee"

Re: [Discuss-gnuradio] gr-ieee802-11 Checksum

I want to modify the blocks from ieee 802.11 next On Mar 28, 2017 18:14, "Ayan Chatterjee" wrote: > Hey, > > I want to acces the CRC bits to compute the checksum in the receiver chain. > > Thanks. > > Regards, > Ayan > > On Mar 28, 2017 18:09, "Marcus Müller" wrote: > >> Hi Ayan, >> please try

Re: [Discuss-gnuradio] gr-ieee802-11 Checksum

Hey, I want to acces the CRC bits to compute the checksum in the receiver chain. Thanks. Regards, Ayan On Mar 28, 2017 18:09, "Marcus Müller" wrote: > Hi Ayan, > please try to keep answers on-list. > > > > > what do you mean with "access the checksum bits"? You mean within > > the RX chain, o

Re: [Discuss-gnuradio] gr-ieee802-11 Checksum

Hi Ayan, please try to keep answers on-list. > > > what do you mean with "access the checksum bits"? You mean within > the RX chain, or externally? Have you tried > I want to acces the CRC bits to compute the checksum in the receiver > chain. > > Does that mean you want to modify the blocks in gr-i

Re: [Discuss-gnuradio] gr-ieee802-11 Checksum

Hi Ayan, what do you mean with "access the checksum bits"? You mean within the RX chain, or externally? Have you tried git grep checksum ? Best regards, Marcus On 03/28/2017 12:50 PM, Ayan Chatterjee wrote: > https://github.com/bastibl/gr-ieee802-11 > > In this release, from where in the cod

[Discuss-gnuradio] gr-ieee802-11 Checksum

https://github.com/bastibl/gr-ieee802-11 In this release, from where in the code I can access the checksum bits for the received frames? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] gr-ieee802-11 tx and rx

Hi Nikita, If you get overflows at 20MS/s, then your PC, in its current configuration, is simply not fast enough to process all the samples. You can try to make sure that your network is optimally configured (largest possible MTU, no firewalling on the interface you only use for your USRP, optimiz

Re: [Discuss-gnuradio] gr-ieee802-11 tx and rx

Thanks Bastian, your advice solved weeks of stalemate! My Tx was not DC calibrated. That's probably why Rx would almost continuously read a new frame. The Rx is working perfectly at 10 MSa/s now. However, the at 20MSa/s I still get overflows and the messages I had mentioned in the previous mail.

Re: [Discuss-gnuradio] gr-ieee802-11 tx and rx

Hi, > On 21 Nov 2016, at 11:34, Nikita Airee wrote: > > I am working on the gr-ieee802-11(https://github.com/bastibl/gr-ieee802-11 > ) > > Setup consists of 2 usrp 2953R (X310) connected via SMA and 30 dB attenuator > at the Rx end. > > The problem

[Discuss-gnuradio] gr-ieee802-11 tx and rx

Hi everyone! I am working on the gr-ieee802-11(https://github.com/bastibl/gr-ieee802-11) Setup consists of 2 usrp 2953R (X310) connected via SMA and 30 dB attenuator at the Rx end. The problem I'm facing is that the packets that are sent do not get decoded at the reciever for high sample rates o

Re: [Discuss-gnuradio] gr-ieee802-11

Hi, > On 01 Mar 2016, at 05:34, Fujiwara wrote: > > Hi everyone! > I am a beginner of GNU Radio. I found a very nice work in > https://github.com/bastibl/gr-ieee802-11/tree/master and it does me a great > favor. I connected two USRP N210,one run wifi_tx.grc, the other run > wifi_rx.grc, it

[Discuss-gnuradio] gr-ieee802-11

Hi everyone! I am a beginner of GNU Radio. I found a very nice work in https://github.com/bastibl/gr-ieee802-11/tree/master and it does me a great favor. I connected two USRP N210,one run wifi_tx.grc, the other run wifi_rx.grc, it worked. But when I want to use cellphone to receive the WiFi

[Discuss-gnuradio] gr-ieee802-11

Hi all, I would like to overcome a limitation of gr-ieee802-11, which is due to the fact it must copy a fixed amount of samples in the ofdm_sync_short block; the consequence of this is that is non possible to capture all of the wifi frame on the air; if you copy 40 sym and there was a frame s

Re: [Discuss-gnuradio] gr-ieee802-11: connecting two usrp devices

It seems like I receive everything wrongly in the device. That looks like a device problem. >> >>Did you play around with the gain and see if that helps? >That did not help. The problem is that in the file '' the code always checks >for the value: > >if(result.checksum() != 558161692) { >dout <

Re: [Discuss-gnuradio] gr-ieee802-11: connecting two usrp devices

Hi, Thanks for reply! > >Did you play around with the gain and see if that helps? That did not help. The problem is that in the file '' the code always checks for the value: if(result.checksum() != 558161692) { dout << "checksum wrong -- dropping" << std::endl; return; }   I am not familiar wit

Re: [Discuss-gnuradio] gr-ieee802-11: connecting two usrp devices

On 2013-12-02 13:25, Nasi wrote: The problem is that all frames are dropped. The copy paste of the terminal is below: Did you play around with the gain and see if that helps? Is frame detection working or are you just streaming samples into the flow graph that make absolutely no sense?

[Discuss-gnuradio] gr-ieee802-11: connecting two usrp devices

Dear All, I need your help. May be someone did it before: I use 'IEEE 802.11 a/g/p OFDM Transceiver' project, Ubuntu 13.04, GNURADIO 3.7. I start the transmission using the first laptop and USRP N200 device by running the ./ofdm_tx.py. It is transmitting; Meanwhile I use the second laptop an

Re: [Discuss-gnuradio] gr-ieee802-11: Mostly broken flow graphs in examples

On 21 Nov 2013, at 08:20, Activecat wrote: > > But how come many of the flow graphs have errors: many ports are not > connected. > > In this case I do not manage to run those examples. > Please help.. > This is due to a patch that renames the message port names. Just reconnect them. http:/

[Discuss-gnuradio] gr-ieee802-11: Mostly broken flow graphs in examples

Dear Sirs, >From the README file of https://github.com/bastibl/gr-ieee802-11, it mentions "in the examples folder are several flowgraphs". But how come many of the flow graphs have errors: many ports are not connected. In this case I do not manage to run those examples. Please help.. Regards, a

Re: [Discuss-gnuradio] gr-ieee802-11 compilation error

On 21 Nov 2013, at 05:05, Activecat wrote: > > Linking CXX shared library libgnuradio-ieee802_11.so > /usr/bin/ld: cannot find -llog4cpp > /usr/bin/ld: cannot find -llog4cpp > oops, can you try to install log4cpp. Under Ubuntu: sudo apt-get install liblog4cpp5-dev Bastian

[Discuss-gnuradio] gr-ieee802-11 compilation error

Dear Sir, While compiling gr-ieee802-11 from https://github.com/bastibl/gr-ieee802-11, these errors were encountered: host@~/gr-ieee802-11/build $ make Scanning dependencies of target ieee802_11_generated_includes [ 3%] Generating moving_average_ff.h, moving_average_cc.h [ 3%] Built target i

Re: [Discuss-gnuradio] gr-ieee802-11 CMake Error

On Wed, Nov 20, 2013 at 1:07 PM, nesimi eldarov wrote: > Hi, > > I read that. There is not any folder with that file. > Yes, the source : > http://gnuradio.org/redmine/news/30 If it's not installed anywhere, then I'm afraid you don't have a properly installed GNU Radio system. The installation of

Re: [Discuss-gnuradio] gr-ieee802-11 CMake Error

Hi, I read that. There is not any folder with that file. Yes, the source : http://gnuradio.org/redmine/news/30   Среда, 20 ноября 2013, 13:05 -05:00 от Tom Rondeau : >On Wed, Nov 20, 2013 at 10:58 AM, nesimi eldarov < nesaz...@mail.ru > wrote: >> Hi Tom, >> >> I install to usr/local, but there

Re: [Discuss-gnuradio] gr-ieee802-11 CMake Error

On Wed, Nov 20, 2013 at 10:58 AM, nesimi eldarov wrote: > Hi Tom, > > I install to usr/local, but there is nothing inside 'lib/cmake/gnuradio', > funnily. > What is this? Please read the link that I sent. Next question: how did you install GNU Radio? From source? Tom > Среда, 20 ноября 2013,

Re: [Discuss-gnuradio] gr-ieee802-11 CMake Error

Hi Tom, I install to usr/local, but there is nothing inside ' lib/cmake/gnuradio', funnily. What is this? Среда, 20 ноября 2013, 9:09 -05:00 от Tom Rondeau : >On Wed, Nov 20, 2013 at 8:44 AM, nesimi eldarov < nesaz...@mail.ru > wrote: >> Hi all, >> >> Please help me if you know the solution:

Re: [Discuss-gnuradio] gr-ieee802-11 CMake Error

On Wed, Nov 20, 2013 at 8:44 AM, nesimi eldarov wrote: > Hi all, > > Please help me if you know the solution: > > My system Ubuntu 13.04 > GNURADIO 3.7.2 > > I run: > > sudo apt-get install libitpp-dev > git clone git://github.com/bastibl/gr-ieee802-11.git > cd gr-ieee802-11 > mkdir build > cd bui

[Discuss-gnuradio] gr-ieee802-11 CMake Error

Hi all, Please help me if you know the solution: My system Ubuntu 13.04 GNURADIO 3.7.2 I run: sudo apt-get install libitpp-dev git clone git://github.com/bastibl/gr-ieee802-11.git cd gr-ieee802-11 mkdir build cd build cmake .. Results:   CMake Warning at CMakeLists.txt:84 (find_package): By no

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

>like this: >http://www.ccs-labs.org/~bloessl/grc.png > >strobe -> app_in >phy_out -> mac_in >mac_out -> phy_in >mac_out -> in (of parser) Thanks! It works. Sean ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

On 11/19/2013 08:03 PM, Nowlan, Sean wrote: I have a patch applied that rename message ports. Maybe the connections are therefore broken. Can you have a quick look if the gray ports are connected. It should be easy to spot where the connections should be (mac_out -> phy_in and so on). They w

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

>I have a patch applied that rename message ports. Maybe the connections are >therefore broken. Can you have a quick look if the gray ports are connected. >It should be easy to spot where the connections should be (mac_out -> phy_in >and so on). They were not connected; I connected them and it

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

On 11/19/2013 07:44 PM, Nowlan, Sean wrote: Thanks, Bastian. I tried this and got another error: <<< Welcome to GNU Radio Companion v3.7.2-13-gf1904733 >>> Loading: "ofdm_phy_hier.grc" Error: Connection between pad_source_1(0) and ieee802_11_ofdm_mapper_0(0) could not be made. sink k

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

>I don't know if there is a way to include hierarchical blocks in the >installation process. So for now you have to manually open ofdm_phy_hier.grc >and click build. >This installs the block in your ~/.grc_gnuradio folder. Then reopen grc. Thanks, Bastian. I tried this and got another error: <<

Re: [Discuss-gnuradio] gr-ieee802-11 grc files missing

On 11/19/2013 07:26 PM, Nowlan, Sean wrote: I’m taking a look at the gr-ieee802-11 project. I’m unable to use ofdm_loopback.grc because ofdm_phy_hier appears to be missing. I’ve installed gr-ieee802-11 and gr-foo from Bastian’s github page. What step am I missing? I don't know if there is a wa

[Discuss-gnuradio] gr-ieee802-11 grc files missing

I'm taking a look at the gr-ieee802-11 project. I'm unable to use ofdm_loopback.grc because ofdm_phy_hier appears to be missing. I've installed gr-ieee802-11 and gr-foo from Bastian's github page. What step am I missing? Thanks, Sean <<< Welcome to GNU Radio Companion v3.7.2-13-gf1904733 >>> L