GnuRadio OFDM Simulation

[@veeravijay5549]

While running it not got a ofdm demodulated plot compiler showing allocation buffer

[@veeravijay5549]

While running it not got a ofdm demodulated plot compiler showing :buffer::allocate_buffer: warning: tried to allocate 20 items of size 3200. Due to alignment requirements 512 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 65536 bytes. please help me

[@SouravKumar-gk9tf]

what is variable "Bins" whose value is 4 in OFDM.grc flow graph ?

[@melonpun]

I would like to thank you for the video. can gnu view the Wi-Fi signal? and what hardware do I need so I can be able to view the Wi-Fi signal? currently working on my final year project and it's based on the behavior of the wifi signal.

[@perinkumar2882]

Hello sir in this the channel equalization and synchronisation also done?

[@veeravijay5549]

Why you are using bins

[@angelosamcordova9223]

Good morning sir. I would like to create a prototype of IEEE 802.22. This standard sir uses the OFDM type of modulation. I wanted our source to be in the usrp, sensing the channel of 471MHz, any idea to transmit it in real time?

[@Carlosjuliansabogaluribe]

Hi... Good Night.. I need your help with the explication of TX and RX ofdm. Because i dont see nothing.. Thanks.. For your time

[@bhanu3178]

how to get the OFDM mod and demod block?

[@vamshi3916]

Did you find the blocks by any chance?

[@bahaaldien6516]

@@vamshi3916 +1

[@furkankocak6480]

@@vamshi3916 Now, Did you find the blocks by any chance?

[@sharath7346]

hello, how can i know the values for syncword1 and syncword2 in the above flowgragh. Could you please mention the values and how?

[@paulr46]

***** if you go to gnuradio/gr-digital/examples/ofdm you can open both a simulation of ofdm rx and tx in grc. the sync words are variables on the top of the flow graph

[@besoprince9474]

+Paul R how can i know python codes used for this example plss??

[@paulr46]

If you go to gnu radio/gr-digital/python/digital you can find the python codes of the ofdm blocks. Some of the more basic blocks like Uchar to Float are scattered across some of the other libraries within GNURadio. The python file that corresponds to this example shown in the video is only made once the flow graph is executed. After execution that python file can be found under gnu radio/gr-digital/examples/ofdm.

[@besoprince9474]

+Paul R thanks i mean here in this example how he print data on terminal as shown???

[@khaledfathy112]

hi Paul, i went to gnuradio/gr-digital/examples/ofdm and i found the ofdm files, i want to ask you for a method to download them cause i tried but it doen't work the .grc files for tx and rx and loopback where empty.

[@alexandracristina9309]

does anyone have these files (rx_ofdm.grc, tx_ofdm.grc and OFDM.grc) and can send them to me, please? or another example ofdm communication.

[@kauti28]

hi! even i need those grc files, if you find them please send them to me

[@redaatsouli7]

@@kauti28 you can find them here : usr/share/gnuradio/examples/digital/ofdm

[@sincos364]

Привет. А можно файлы?