Implementations of waveforms for Low Power Wide Area Networks (LPWANs)
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This is a GNU Radio out-of-tree module and contains an implementation of the new LECIM DSSS PHY layer of IEEE802.15.4.


  • LECIM DSSS physical layer of IEEE802.15.4 standard
  • Transmitting and receiving in realtime
  • Multiple example flowgraphs
  • Fragmentation sublayer for splitting frames in smaller fragments and retransmission on transmission failure

Install instructions for Linux

git clone git://
cd gr-lpwan
mkdir build
cd build
cmake ..
sudo make install

After installation it's necessary to generate some hierarchical flowgraphs within GRC. These flowgraphs are located in examples/dsss/hier.

Test Platform

  • Ubuntu 16.04
  • GNU Radio v3.7.10.1
  • B210 USRP