Changes between Version 6 and Version 7 of Hardware/bDomains/aGrid

Timestamp:

Aug 29, 2006, 3:11:23 AM (18 years ago)

Author:

seskar

Comment:

—

Hardware/bDomains/aGrid

@@ -1 +1 @@
 [wiki:Documentation Back]
 
-= Centralized Arbitrary Noise Injection Subsystem = 
+= Centralized Arbitrary Waveform Injection Subsystem (CAWIS) = 
 
-This subsystem consists of a central arbitrary waveform generator (Agilent ESG) connected to four distribution antennas through a RF switch.
-Using this subsystem, users can inject ''individually'' controllable noise into the ORBIT grid using the antennas.
+This subsystem consists of arbitrary waveform generator (Agilent ESG) connected trough distribution network to four milti-band antennas located in the four corners of the grid. The distribution network enables control over the attenuation of the individual antenna feed. Using CAWIS users can inject, among other types of waveforms, AWGN signals into the main ORBIT grid and thus create different topologies.  
 
-== Webservice commands ==
+== CAWIS usage ==
+
+As most of the Orbit services, CAWIS is a web-based service accessible from main grid console trough url:  ''http://instrument1.orbit-lab.org:5012/interference''. Accessing this url without any other arguments will show it's help page:
+
 {{{
 <serviceGroup name="interference">
@@ -49 +51 @@
 
 == Example ==
-To set AWGN on channel 36 at -30 dBm on antenna1 use the following commands (either through a browser or '''wget''')
+To set AWGN on channel 36 at -30 dBm on all four antennas use the following sequence (either through a browser or '''wget''')
+ * Step 1: Initialize the "interference" mode of the service
+    {{{
+          wget http://instrument1.orbit-lab.org/initialize
+    }}}
  * Step 1: Select AWGN bandwidth (channel bw for 802.11a/b/g is 20 Mhz)
     {{{
           wget http://instrument1.orbit-lab.org/awgn?bandwidth=20
     }}}
- * Step 2: Set power level to -30 dBm
+ * Step 2: Set power level to -30 dBm and channel number to 36
     {{{
-          wget http://instrument1.orbit-lab.org/set?power=-30
+          wget http://instrument1.orbit-lab.org/set?power=-30&channel=36
     }}}
- * Step 3: Set channel number to 36 
-    {{{
-          wget http://instrument1.orbit-lab.org/set?channel=36
-    }}}
- * Step 4: Start RF injection
+  * Step 4: Start RF injection
     {{{
           wget http://instrument1.orbit-lab.org/start