Simple radio example with GNURADIO benchmark scripts

Description

This example will utilize an OEDL experiment script to execute packet transfers over a radio link created using GNU Radio. This is will involve running a GNU Radio benchmark script two nodes each with a USRP2.

Hardware / Software Resources utilized

1. Grid nodes with a USRP2 connect via Ethernet.
2. baseline-12-04-gnu.ndz: disk image loaded onto nodes. This image has all the precompiled - software required to configure the USRP2s and all the required GNU Radio software libraries. The USRP2's interface with the node is already configured.
3. GNU Radio - software library to create SDR. Click here for ​additional info.
4. USRP2 - hardware platform for SDR. Click here for ​more info.

Set up

• To get started first make a reservation on the ​Orbit Scheduler for using the Grid.

• After logging into grid console, make sure all nodes are turned off

  nilanjan@console.grid:~$ omf tell -a offh -t system:topo:all
  

• Verify state of node before continuing. Make sure all nodes are in the POWEROFF state.

  nilanjan@console.grid:~$ omf stat
  

• Image nodes. Two (2) are required to run - check ​inventory status to find nodes with 2 similar USRP2s. In this examples we'll use node1-1 and node1-2.

  nilanjan@console.grid:~$ omf load -i baseline-12-04-gnu.ndz -t node1-1,node1-2
  

• Turn nodes back on and verify they are in POWERON state

  nilanjan@console.grid:~$ omf tell -a on -t system:topo:imaged
  

Running OEDL script

• Run the experiment script using the following OMF command

  nilanjan@console.grid:~$ omf exec system:exp:gnu-benchmark
  
   INFO NodeHandler: OMF Experiment Controller 5.4 (git 3fb37b9)
   INFO NodeHandler: Reading configuration file /etc/omf-expctl-5.4/services.yaml
   INFO NodeHandler: Add domain http - http://internal1.orbit-lab.org:5054/
   INFO NodeHandler: Add domain http - http://repository1.orbit-lab.org:5054/
   INFO NodeHandler: Slice ID: default_slice (default)
   INFO NodeHandler: Experiment ID: default_slice-2014-07-17t14.20.09.457-04.00
   INFO NodeHandler: Message authentication is disabled
   INFO Experiment: load system:exp:stdlib
   INFO property.resetDelay: resetDelay = 230 (Fixnum)
   INFO property.resetTries: resetTries = 1 (Fixnum)
   INFO Experiment: load system:exp:eventlib
   INFO Experiment: load system:exp:winlib
   INFO Experiment: load system:exp:gnu-benchmark
   INFO property.rate: rate = ".250M" (String)
   INFO property.modulation: modulation = "bpsk" (String)
   INFO property.freq: freq = "2410000000" (String)
   INFO property.runtime: runtime = 10 (Fixnum)
   INFO Topology: Loaded topology '/tmp/pxe_slice-2014-07-17t13.52.30.457-04.00-topo-success'.
   INFO Topology: Loaded topology 'system:topo:imaged'.
  TX: node1-2.grid.orbit-lab.org
  RX: node1-1.grid.orbit-lab.org
   INFO ALL_UP_AND_INSTALLED: Event triggered. Starting the associated tasks.
   INFO exp: Request from Experiment Script: Wait for 2s....
   INFO exp: Start receiver app
   INFO exp: Request from Experiment Script: Wait for 2s....
   INFO exp: Start sending packets
   INFO exp: Request from Experiment Script: Wait for 10s....
   INFO exp: Stop transmitter and receiver
   INFO exp: Request from Experiment Script: Wait for 2s....
   INFO exp: done
   INFO EXPERIMENT_DONE: Event triggered. Starting the associated tasks.
   INFO NodeHandler:
   INFO NodeHandler: Shutting down experiment, please wait...
   INFO NodeHandler:
   INFO run: Experiment default_slice-2014-07-17t14.20.09.457-04.00 finished after 0:25
  
  nilanjan@console.grid:~$