Changes between Version 7 and Version 8 of 802.11/wlan_exp/app_notes/dcf_with_multiple_flows

Timestamp:

Apr 16, 2014, 4:20:57 PM (10 years ago)

Author:

chunter

Comment:

--

802.11/wlan_exp/app_notes/dcf_with_multiple_flows

@@ -19 +19 @@
 === Experimental Setup ===
 
+While all of the example code provided by this application note will operate over-the-air with antennas, we chose to use RF cabling with attenuators to make the results repeatable and easier to discuss.
+
 ||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:experimental_setup.png, width=400)]]  ||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:experimental_setup_photo.jpg, width=400)]]  ||
 ||  '''Block Diagram'''  ||  '''Photo'''  ||
+
+The above figure shows the experimental setup. We use an [http://www.minicircuits.com/pdfs/ZAPD-2-272+.pdf Mini-Circuits Power Splitter/Combiner] and rely on imperfect isolation between the two station-connected ports to allow the stations to carrier-sense one another. The three ports of the combiner are connected to three sets of attenuators, whose values we will define in the coming experimental description sections. In each of the below experiments, we refer to a common legend of traffic flows:
+
+ * '''Flow 1:''' Backlogged constant bit-rate (CBR) traffic from AP to STA_1
+ * '''Flow 2:''' Backlogged CBR traffic from AP to STA_2
+ * '''Flow 3:''' Backlogged CBR traffic from STA_1 to AP
+ * '''Flow 4:''' Backlogged CBR traffic from STA_2 to AP
+
+The colors used to identify each flow in the above figure are common throughout this application note.
 
 == Experiment 1: Symmetric and Fully Connected ==
 
 == Experiment 2: Symmetric with Hidden Stations ==
+
+== Resources ==
+
+Links to the data sets and experiment scripts used to perform this study will be posted shortly.