adaptive modulation in gnu radio

[dapodun nudopad]

Hello everyone,
I am looking towards how to make a flowgraph to detect when received signal
strength is below -20 dB for instance. It'll automatically change
modulation techniques to a low-order modulation (QPSK) and when more than
-20 dB (say -10 dB). It'll take a high modulation technique (16QAM).
May I know if anyone is working on this. I am willing to learn and
contribute as well.
Thank you.

[Discuss-gnuradio] Uninstall GNU + dependencies

[dapodun nudopad]

Hi all,may I know how to Uninstall GNU radio with all the dependencies
Installed in usr/local. I tried straight deleting the folders in local but
it can't work. As well as trying to purge which didn't work. I user
terminal sudo apt-get autoremove gnuradio but when I enter
gnuradio-companion in terminal it's still open GNU radio. May I know what
to do because I really need to make a clean Install of GNU radio for the
next branch. Thanks
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[Discuss-gnuradio] Calculating SNR

[dapodun nudopad]

Hi, May I know how to calculate SNR from the noise source introduce in the
simulation block in ofdm example given in gr-digital.
Thank you. Regards
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[Discuss-gnuradio] Awgn simulation error

[dapodun nudopad]

Hi,
I had run the sim.grc in the awgn simulation folder from gr-ieee802.11 and
I get this following from the terminal. Plus, I'm not sure how I should
measures the ber however the error I got is below. Thanks
linux; GNU C++ version 5.4.0 20160609; Boost_105800;
UHD_003.010.001.HEAD-0-g929e3b32

MAPPER: encoding: 0
set_min_output_buffer on block 9 to 397056
set_min_output_buffer on block 11 to 397056
set_min_output_buffer on block 13 to 397056
set_min_output_buffer on block 14 to 397056
set_min_output_buffer on block 16 to 397056
set_min_output_buffer on block 28 to 96000
thread[thread-per-block[1]: ]:
pmt_to_long: wrong_type : #t
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[Discuss-gnuradio] OFDM Carrier Allocator

[dapodun nudopad]

Hello, I have trouble assigning parameters to sync words in OFDM Carrier
allocator block in gnu radio.
Does anyone has an example to share.
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[Discuss-gnuradio] USRP N210

[dapodun nudopad]

Hello,
May I know how to be able to detect USRP N210 in ubuntu16.04 terminal using
Gigabit Ethernet cable and the command terminal line uhd_find_devices. Ive
tried countless methods such as usrp_devices_pprobe and many other more.
Second of all, I don't know how to configure the IP address and net mask
for N210 from ubuntu network manager. Thanks
Thanks for any suggestion please.
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