Changes between Version 3 and Version 4 of WiMAX/WiMAX-Tutorial/RTC/00


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Timestamp:
10/29/13 03:21:05 (6 years ago)
Author:
Fraida Fund
Comment:

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  • WiMAX/WiMAX-Tutorial/RTC/00

    v3 v4  
    1616We're using the  [http://witestlab.poly.edu/repos/omlapps/oml4js/ oml4js] library, a !JavaScript library for collecting measurements from a website and storing them using '''OML'''. While the video chat is active, measurements from the chat will be continuously streamed to a local OML server on the laptop. After the experiment is over, we'll push the results to iRODS and examine them more closely there.
    1717
    18 == Experiment Procedure
     18== Experiment Procedure ==
     19
     20The experiment procedure is as follows:
     21
     22 * The first peer visits the [http://witestlab.poly.edu/~ffund/webrtc/webrtc-read-only/samples/js/demos/html/webrtc-oml.html URL] for the WebRTC app in Google Chrome. A bar at the top of the screen will ask if you are willing to let the browser access your camera; don't click allow until the second peer has joined the chat!
     23 * The second peer visits the same [http://witestlab.poly.edu/~ffund/webrtc/webrtc-read-only/samples/js/demos/html/webrtc-oml.html URL]
     24 * Both peers click "Allow" and should now see video streams from each other's webcams
     25
     26== Post-Experiment ==
     27
     28After the experiment, the OML-instrumented peer will send the measurement results to iRODS using the {{{iput}}} command.
     29
     30
     31Inside iRODS, we'll use the iRODS web browser to visualize the results of our experiment.
     32
     33== Reconfiguring the WiMAX BS ==
     34
     35A major advantage of on-campus WiMAX (over using a regular cellular carrier) for experimentation, is that you can reconfigure the WiMAX BS. In this experiment, we'll try using WebRTC with and without link-layer retransmission (ARQ) and observe the effect of ARQ on latency, packet loss, and video rate.