105 | | * At this point, the server is ready to use. Please see the sections below for details on how to save work when finished, and the experiments and resources that are available on the server. |
| 105 | * At this point, the server is ready to use. Please see the sections below for details on how to use the baseline experiments, the resources that are available on the server, and how to save your work when finished. |
| 106 | |
| 107 | ==== Running the baseline experiment ==== |
| 108 | We can open GNU Radio using the following command: |
| 109 | {{{ |
| 110 | gnuradio-companion & |
| 111 | }}} |
| 112 | |
| 113 | If X-forwarding is setup correctly for your {{{ssh}}} session, the GNU Radio graphical user interface (GUI) program should open. If X-forwarding is not setup correctly, an error will display saying that the GUI window cannot be opened - please ensure you have used the -X flags correctly as described in the setup. |
| 114 | |
| 115 | Open an example experiment from the {{{~/Experiments/Node}}} directory. The following experiments are available: |
| 116 | * {{{node_level_sic_fd_gui}}} - Demonstrates node-level self-interference cancellation (SIC) and allows the experimenter to configure the RF canceller printed circuitboard (PCB). |
| 117 | * {{{ofdm_link_fd_gui}}} - Creates an FD link between the two FD radios integrated in COSMOS. |
| 118 | * {{{prr_fd_gui}}} - Computes the packet reception ratio (PRR) for an FD link. |
| 119 | |
| 120 | If we open {{{ofdm_link_fd_gui.grc}}}, the following window will show: |
| 121 | |
| 122 | Finally, clicking the grey-green play button will run the experiment! |
| 123 | |
| 124 | ||||||Figure 4: An example FD experiment in the COSMOS testbed || |
| 125 | || [[Image(GNURadioFDExperiment.2.png,480px)]] || [[Image(ofdm_link_fd_gui.png,480px)]] || |
| 126 | || (a) The GNU Radio flowgraph || (b) The experiment GUI || |
148 | | |
149 | | ==== Running an example experiment ==== |
150 | | We can open GNU Radio using the following command: |
151 | | {{{ |
152 | | gnuradio-companion & |
153 | | }}} |
154 | | |
155 | | If X-forwarding is setup correctly for your {{{ssh}}} session, the GNU Radio graphical user interface (GUI) program should open. If X-forwarding is not setup correctly, an error will display saying that the GUI window cannot be opened. |
156 | | |
157 | | Open an example experiment from the {{{~/FD_Examples}}} directory. The following experiments are available: |
158 | | * {{{node_level_sic_fd_gui}}} - Demonstrates node-level self-interference cancellation (SIC) and allows the experimenter to configure the RF canceller printed circuitboard (PCB). |
159 | | * {{{ofdm_link_fd_gui}}} - Creates an FD link between the two FD radios integrated in COSMOS. |
160 | | * {{{prr_fd_gui}}} - Computes the packet reception ratio (PRR) for an FD link. |
161 | | |
162 | | If we open {{{ofdm_link_fd_gui.grc}}}, the following window will show: |
163 | | |
164 | | Finally, clicking the grey-green play button will run the experiment! |
165 | | |
166 | | ||||||Figure 4: An example FD experiment in the COSMOS testbed || |
167 | | || [[Image(GNURadioFDExperiment.2.png,480px)]] || [[Image(ofdm_link_fd_gui.png,480px)]] || |
168 | | || (a) The GNU Radio flowgraph || (b) The experiment GUI || |