Changes between Version 5 and Version 6 of WARPLab/Examples/OFDM

Timestamp:

Feb 21, 2014, 11:38:02 AM (10 years ago)

Author:

murphpo

Comment:

--

WARPLab/Examples/OFDM

@@ -39 +39 @@
 === Simulation ===
 To use the example in simulation mode set the top-level param {{{USE_WARPLAB_TXRX = 0;}}}, then run the m-script. When the script finishes 6 plots will show:
-
-||  [[Image(wl_ofdm_plots_sim_txIQ.png,nolink)]][[BR]]Transmitted waveform  ||  [[Image(wl_ofdm_plots_sim_rxIQ.png,nolink)]] [[BR]]Received waveform  ||  [[Image(wl_ofdm_plots_sim_ltsCorr.png,nolink)]] [[BR]]Preamble correlation results[[BR]](peaks indicate locations of preamble LTS)  ||
-||  [[Image(wl_ofdm_plots_sim_chanEst.png,nolink)]] [[BR]]Channel estimate per subcarrier[[BR]](I/Q components and complex magnitude)  ||  [[Image(wl_ofdm_plots_sim_phaseError.png,nolink)]] [[BR]]Phase error per OFDM symbol based on pilot tones  ||  [[Image(wl_ofdm_plots_sim_constellations.png,nolink)]] [[BR]]Tx and Rx constellations  ||
+||||||=  '''Simulation Plots'''  =||
+||  [[Image(wl_ofdm_plots_sim_txIQ.png,width=250)]][[BR]]Transmitted waveform  ||  [[Image(wl_ofdm_plots_sim_rxIQ.png,width=250)]] [[BR]]Received waveform  ||  [[Image(wl_ofdm_plots_sim_ltsCorr.png,width=250)]] [[BR]]Preamble correlation results[[BR]](peaks indicate locations of preamble LTS)  ||
+||  [[Image(wl_ofdm_plots_sim_chanEst.png,width=250)]] [[BR]]Channel estimate per subcarrier[[BR]](I/Q components and complex magnitude)  ||  [[Image(wl_ofdm_plots_sim_phaseError.png,width=250)]] [[BR]]Phase error per OFDM symbol based on pilot tones  ||  [[Image(wl_ofdm_plots_sim_constellations.png,width=250)]] [[BR]]Tx and Rx constellations  ||
 
 By default the simulation script applies AWGN with an arbitrary fixed SNR. You can change the simulated propagation characteristics in the m-code. Search for {{{AWGN}}} and apply whatever Tx->Rx degradations you like.
@@ -60 +60 @@
 }}}
 
-
 === Hardware in the Loop ===
 To use the example with WARP hardware you will need two WARP nodes each running WARPLab 7.3 (or later) and a WARPLab environment setup on your PC. Refer to the [wiki:../../QuickStart WARPLab Quick Start] if you have not yet setup WARPLab.
@@ -66 +65 @@
 To target WARP hardware set the top-level param {{{USE_WARPLAB_TXRX = 1;}}}, then run the m-script. When the script finishes 6 plots will show:
 
+||||||=  '''Hardware in the Loop Plots'''  =||
+||  [[Image(wl_ofdm_plots_hw_txIQ.png,width=250)]][[BR]]Transmitted waveform  ||  [[Image(wl_ofdm_plots_hw_rxIQ.png,width=250)]] [[BR]]Received waveform  ||  [[Image(wl_ofdm_plots_hw_ltsCorr.png,width=250)]] [[BR]]Preamble correlation results[[BR]](peaks indicate locations of preamble LTS)  ||
+||  [[Image(wl_ofdm_plots_hw_chanEst.png,width=250)]] [[BR]]Channel estimate per subcarrier[[BR]](I/Q components and complex magnitude)  ||  [[Image(wl_ofdm_plots_hw_phaseError.png,width=250)]] [[BR]]Phase error per OFDM symbol based on pilot tones  ||  [[Image(wl_ofdm_plots_hw_constellations.png,width=250)]] [[BR]]Tx and Rx constellations  ||
 
-||  [[Image(wl_ofdm_plots_sim_txIQ.png,nolink)]][[BR]]Transmitted waveform  ||  [[Image(wl_ofdm_plots_sim_rxIQ.png,nolink)]] [[BR]]Received waveform  ||  [[Image(wl_ofdm_plots_sim_ltsCorr.png,nolink)]] [[BR]]Preamble correlation results (peaks indicate locations of preamble LTS)  ||
-||  [[Image(wl_ofdm_plots_sim_chanEst.png,nolink)]] [[BR]]Channel estimate per subcarrier (I/Q components and complex magnitude)  ||  [[Image(wl_ofdm_plots_sim_phaseError.png,nolink)]] [[BR]]Phase error per OFDM symbol based on pilot tones  ||  [[Image(wl_ofdm_plots_sim_constellations.png,nolink)]] [[BR]]Tx and Rx constellations  ||
+
+The script also prints statistics about the experiment to the MATLAB command prompt:
+{{{
+Results:
+Num Bytes:  4560
+Sym Errors:  0 (of 9120 total symbols)
+Bit Errors:  0 (of 36480 total bits)
+EVM:        5.22%
+LTS CFO Est: 3.11 kHz
+}}}
+
 
 == Limitations ==