Changes between Initial Version and Version 1 of 802.11/wlan_exp/log/examples/txrx_walkthrough

Timestamp:

Mar 22, 2014, 9:36:40 PM (10 years ago)

Author:

murphpo

Comment:

--

802.11/wlan_exp/log/examples/txrx_walkthrough

@@ +1 @@
+First we import the required packages:
+{{{#!python
+import warpnet.wlan_exp_log.log_util as log_util
+import warpnet.wlan_exp_log.log_util_hdf as hdf_util
+import numpy as np
+}}}
+
+Next define the names of the two log files we will process:
+{{{#!python
+AP_LOGFILE = 'example_logs/ap_log_stats_2014_03_20.hdf5'
+STA_LOGFILE = 'example_logs/sta_log_stats_2014_03_20.hdf5'
+}}}
+
+Then we extract the log data and the associated log indexes from the log files:
+{{{#!python
+log_data_ap = hdf_util.hdf5_to_log_data(filename=AP_LOGFILE)
+log_data_index_ap = hdf_util.hdf5_to_log_data_index(filename=AP_LOGFILE)
+
+log_data_sta = hdf_util.hdf5_to_log_data(filename=STA_LOGFILE)
+log_data_index_sta = hdf_util.hdf5_to_log_data_index(filename=STA_LOGFILE)
+}}}
+
+Before we can process the log data, we need to translate and filter the raw log indexes. This step replaces the hard-to-understand entry type codes (like {{{10}}}) with easy entry type names (like {{{RX_OFDM}}}). It also filters out log entries we don't need for this example.
+
+In this example we create log indexes (one for each log file) that refer to only the Tx and OFDM Rx log entries:
+
+{{{#!python
+log_index_txrx_ap = log_util.filter_log_index(log_data_index_ap, include_only=['RX_OFDM', 'TX'])
+log_index_txrx_sta = log_util.filter_log_index(log_data_index_sta, include_only=['RX_OFDM', 'TX'])
+}}}
+
+Finally we parse the actual log data, extracting arrays for each type of log entry in our filtered index:
+
+{{{#!python
+log_np_ap = log_util.log_data_to_np_arrays(log_data_ap, log_index_txrx_ap)
+log_np_sta = log_util.log_data_to_np_arrays(log_data_sta, log_index_txrx_sta)
+}}}
+
+Now we have four numpy arrays (Tx/Rx for AP/STA), stored in two dictionaries. Let's assign these arrays to dedicated variables for easier code:
+{{{#!python
+tx_ap = log_np_ap['TX']
+tx_sta = log_np_sta['TX']
+
+rx_ap = log_np_ap['RX_OFDM']
+rx_sta = log_np_sta['RX_OFDM']
+}}}
+