Changes between Version 81 and Version 82 of 802.11/wlan_exp/app_notes/dcf_with_multiple_flows

Timestamp:

Oct 23, 2014, 8:00:39 AM (10 years ago)

Author:

chunter

Comment:

--

802.11/wlan_exp/app_notes/dcf_with_multiple_flows

@@ -3 +3 @@
 = Investigating Physical Carrier Sensing in the DCF with Multiple Traffic Flows =
 
-This application note presents results from a simple experiment using the [wiki:802.11 Mango 802.11 Reference Design] and its [wiki:802.11/wlan_exp experiments framework]. We use three WARP v3 nodes to build a basic 802.11 network, with one AP and two stations (STA). All three nodes contend for medium access with backlogged traffic flows. The experiments framework enables a detailed study of the performance of each traffic flow, providing insight into the low-level behavior of the 802.11 MAC Distributed Coordination Function (DCF). As the independent variable in our experiments we modify the state of physical carrier sensing at each node. All of the scripts used to run the experiments, process the data and plot figures is available below in the [#Resources] section. Furthermore, the log file data we gathered for these specific plots is available in the same section.
+This application note presents results from a simple experiment using the [wiki:802.11 Mango 802.11 Reference Design] and its [wiki:802.11/wlan_exp experiments framework]. We use three WARP v3 nodes to build a basic 802.11 network, with one AP and two stations (STA). All three nodes contend for medium access with backlogged traffic flows. The experiments framework enables a detailed study of the performance of each traffic flow, providing insight into the low-level behavior of the 802.11 MAC Distributed Coordination Function (DCF). As the independent variable in our experiments we modify the state of physical carrier sensing at each node. All of the scripts used to run the experiments, process the data and plot figures is available below in the [#Resources Resources] section. Furthermore, the log file data we gathered for these specific plots is available in the same section.
 
 The primary purpose of this app note is to demonstrate the 802.11 Reference Design and its experiments framework, and to highlight the variety of experimental data which can be computed from the Tx/Rx log recorded at each node. This app note is not an exhaustive study of physical carrier sensing. There are [http://scholar.google.com/scholar?hl=en&q=carrier+sensing many scholarly articles] on the physical carrier sensing that provide a much richer theoretical background.